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“So many flaws”: Post-menopausal bone-strengthening exercise under scrutiny

<p>A study claiming that the OsteoStrong exercise program helps strengthen bones in post-menopausal women has come under heavy criticism from international experts, with some calling for the research to be retracted.</p> <p>Published earlier this year in the Journal of Clinical Endocrinology & Metabolism (JCEM), <a href="https://academic.oup.com/jcem/advance-article/doi/10.1210/clinem/dgaf077/8004985?login=false" target="_blank" rel="noopener">the study</a> was initially celebrated by OsteoStrong, a commercial franchise offering brief, high-intensity weekly sessions designed to improve bone density. The company described its publication as a “monumental step” in validating the program as a science-backed option for managing osteoporosis.</p> <p>However, scientists say the research suffers from major flaws in design, data analysis and ethical oversight – with some arguing it should never have passed peer review.</p> <p>“We really questioned the editor on how this paper got through the peer-review process,” said Professor Robin Daly, an expert in exercise and ageing at Deakin University. “It had so many flaws and so many holes in it… There’s no way that you can make a claim that it’s an effective program.”</p> <p>The study followed 147 post-menopausal women over 12 months, dividing them into groups that either participated in OsteoStrong or did not. The researchers claimed participants who did the program saw bone density gains, particularly those who also took bone-strengthening medication. But critics say these conclusions are unsupported.</p> <p>“The claims are totally misleading,” said Professor Daly. “The whole paper is extremely difficult to interpret.”</p> <p>Among the concerns are the lack of a pre-defined statistical plan, failure to minimise bias, no ethical approval, and no registration of the trial – a standard practice designed to ensure transparency and guard against selective reporting.</p> <p>Lora Giangregorio, a bone researcher at the University of Waterloo, co-authored a letter calling for the study’s retraction. She said the study’s statistical analysis “doesn’t make any sense” and that its claims were “not appropriate.”</p> <p>Other experts, including Professor Chris Maher from the University of Sydney, agreed the study was too flawed to offer credible evidence. “It does not conform to the Declaration of Helsinki, so it has no standing in medical science and should never have been published,” Maher said.</p> <p>The Endocrine Society, which publishes JCEM, <a href="https://www.abc.net.au/news/health/2025-06-20/osteostrong-bone-density-health-study-retraction-health-research/105225286" target="_blank" rel="noopener">acknowledged to the ABC</a> that “shortcomings in the research’s design and analyses” and said the authors are submitting a revised version.</p> <p>Despite these criticisms, the concept behind OsteoStrong – that placing load on bones can help strengthen them – is considered physiologically plausible. Yet experts stress that rigorous evidence is needed.</p> <p>“The idea of osteogenic loading makes sense,” said Dr Shoshana Sztal-Mazer, an endocrinologist at Alfred Health. “But a 10-minute-a-week quick fix needs to be proven by rigorous studies.”</p> <p>OsteoStrong did not address the criticisms directly but pointed to unpublished, company-sponsored research it says supports its program’s benefits.</p> <p>Health authorities, including Osteoporosis Canada and Healthy Bones Australia, continue to recommend exercise as part of a comprehensive approach to bone health – but caution that no short-cut solution has yet been proven to replace established treatments.</p> <p>“Exercise is important as part of holistic care for osteoporosis,” Dr Sztal-Mazer said. “But claims of dramatic benefits from minimal effort need solid evidence before they can be endorsed.”</p> <p><em>Image: OsteoStrong</em></p>

Body

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Five common habits that might be harming your liver

<div class="theconversation-article-body"> <p>The liver is one of the hardest working organs in the human body. It detoxifies harmful substances, helps with digestion, stores nutrients, and regulates metabolism.</p> <p>Despite its remarkable resilience – and even its ability to regenerate – the liver is not indestructible. In fact, many everyday habits, often overlooked, can slowly cause damage that may eventually lead to serious conditions <a href="https://www.nhs.uk/conditions/cirrhosis/">such as cirrhosis</a> (permanent scarring of the liver) or liver failure.</p> <p>One of the challenges with liver disease is that it can be a silent threat. In its early stages, it may cause only vague symptoms like constant fatigue or nausea.</p> <p>As damage progresses, more obvious signs may emerge. <a href="https://britishlivertrust.org.uk/information-and-support/liver-health-2/symptoms-of-liver-disease/">One of the most recognisable</a> is jaundice, where the skin and the whites of the eyes turn yellow. While most people associate liver disease with heavy drinking, alcohol isn’t the only culprit. Here are five common habits that could be quietly harming your liver.</p> <h2>1. Drinking too much alcohol</h2> <p>Alcohol is perhaps the most well-known cause of liver damage. When you drink, your liver works to break down the alcohol and clear it from your system. But too much alcohol overwhelms this process, causing toxic by products to build up and damage liver cells.</p> <p>Alcohol-related liver disease <a href="https://britishlivertrust.org.uk/lyl-alcohol-and-the-liver/">progresses in stages</a>. At first, fat begins to accumulate in the liver (fatty liver), often without any noticeable symptoms and reversible if drinking stops. Continued drinking can lead to <a href="https://www.nhs.uk/conditions/alcohol-related-liver-disease-arld/">alcoholic hepatitis</a>, where inflammation and scar tissue begin to form as the liver attempts to heal itself.</p> <p>Over time, this scarring can develop into cirrhosis, where extensive hardening of the liver seriously affects its ability to function. While cirrhosis is difficult to reverse, stopping drinking can help prevent further damage.</p> <p>Even moderate drinking, if sustained over many years, can take its toll, particularly when combined with other risk factors like obesity or medication use. Experts recommend sticking to <a href="https://www.nhs.uk/live-well/alcohol-advice/calculating-alcohol-units/">no more than 14 units of alcohol</a> per week, and including alcohol-free days to give your liver time to recover.</p> <h2>2. Poor diet and unhealthy eating habits</h2> <p>You don’t need to drink alcohol to develop liver problems. Fat can build up in the liver due to an unhealthy diet, leading to a condition now called <a href="https://www.hopkinsmedicine.org/health/conditions-and-diseases/nonalcoholic-fatty-liver-disease">metabolic dysfunction-associated steatotic liver disease</a> (MASLD), formerly known as non-alcoholic fatty liver disease (NAFLD).</p> <p>Excess fat in the liver can impair its function and, over time, cause inflammation, scarring, and eventually cirrhosis. People who are overweight – particularly those who carry excess weight around their abdomen – are more likely to develop MASLD. <a href="https://www.hopkinsmedicine.org/health/conditions-and-diseases/nonalcoholic-fatty-liver-disease">Other risk factors include</a> high blood pressure, diabetes and high cholesterol.</p> <figure><iframe src="https://www.youtube.com/embed/gZQ3VFHq17E?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>Diet plays a huge role. Foods high in saturated fat, such as red meat, fried foods and processed snacks, can raise cholesterol levels and contribute to liver fat accumulation. Sugary foods and drinks are also a major risk factor. <strong>In 2018</strong>, <a href="https://link.springer.com/article/10.1007/s00394-018-1711-4">a review found</a> that people who consumed more sugar sweetened drinks had a 40% higher risk of developing fatty liver disease.</p> <p>Ultra-processed foods such as fast food, ready meals and snacks packed with added sugar and unhealthy fats also contribute to liver strain. <a href="https://www.sciencedirect.com/science/article/pii/S000291652366188X#sec6">A large study found</a> that people who ate more processed foods were significantly more likely to develop liver problems.</p> <p>On the flip side, eating a balanced, wholefood diet can help prevent – and even reverse – fatty liver disease. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9370227/">Research suggests</a> that diets rich in vegetables, fruit, whole grains, legumes, and fish may reduce liver fat and improve related risk factors such as high blood sugar and cholesterol.</p> <p>Staying hydrated is also important. Aim for around eight glasses of water a day to support your liver’s natural detoxification processes.</p> <h2>3. Overusing painkillers</h2> <p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC10645398/">Many people turn to</a> over-the-counter painkillers such as paracetamol for headaches, muscle pain, or fever. While generally safe when used as directed, taking too much – even slightly exceeding the recommended dose – can be <a href="https://bpspubs.onlinelibrary.wiley.com/doi/10.1111/bcp.13656#:%7E:text=As%20the%20toxic%20metabolite%20of,predispose%20patients%20to%20liver%20injury.">extremely dangerous</a> for your liver.</p> <p>The liver breaks down paracetamol, but in the process, produces a toxic by-product called NAPQI. Normally, the body neutralises NAPQI using a <a href="https://pubchem.ncbi.nlm.nih.gov/compound/Glutathione">protective substance called glutathione</a>. However, in an overdose, glutathione stores become depleted, allowing NAPQI to accumulate and attack liver cells. This can <a href="https://britishlivertrust.org.uk/researchers-shed-new-light-paracetamol-causes-liver-damage/#:%7E:text=Paracetamol%20is%20an%20effective%20treatment,came%20out%20worse%20than%20Britain.">result in acute liver failure</a>, which can be fatal.</p> <p>Even small overdoses, or <a href="https://cks.nice.org.uk/topics/analgesia-mild-to-moderate-pain/management/paracetamol/">combining paracetamol with alcohol</a>, can increase the risk of serious harm. Always stick to the recommended dose and speak to a doctor if you find yourself needing pain relief regularly.</p> <h2>4. Lack of exercise</h2> <p>A sedentary lifestyle is another major risk factor for liver disease. Physical inactivity contributes to weight gain, insulin resistance, and metabolic dysfunction – all of which can promote fat accumulation in the liver.</p> <p>The good news is that exercise can benefit your liver even if you don’t lose much weight. <a href="https://gut.bmj.com/content/gutjnl/60/9/1278.full.pdf">One study found</a> that just eight weeks of resistance training reduced liver fat by 13% and improved blood sugar control. Aerobic exercise is <a href="https://liver.org.au/news/exercise-for-fatty-liver-disease-has-benefits-beyond-weight-loss/#:%7E:text=%E2%80%9CExercise%20can%20benefit%20liver%20health%20by%20reducing,physical%20strength%20and%20body%20composition%2C%E2%80%9D%20she%20says.&amp;text=To%20reduce%20liver%20fat%2C%20it's%20recommended%20that,of%20at%20least%20moderate%20intensity%20aerobic%20exercise.">also highly effective</a>: regular brisk walking for 30 minutes, five times a week, has been shown to reduce liver fat and improve insulin sensitivity.</p> <h2>5. Smoking</h2> <p>Most people associate smoking with lung cancer or heart disease, but many don’t realise the <a href="https://www.journal-of-hepatology.eu/article/S0168-8278(22)00029-0/fulltext">serious damage</a> it can do to the liver.</p> <p>Cigarette smoke contains thousands of toxic chemicals that <a href="https://britishlivertrust.org.uk/information-and-support/living-with-a-liver-condition/stopping-smoking/">increase the liver’s workload</a> as it tries to filter and break them down. Over time, this can lead to <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4088100/">oxidative stress</a>, where unstable molecules (free radicals) damage liver cells, restrict blood flow, and contribute to scarring (cirrhosis).</p> <p>Smoking also significantly raises the risk of liver cancer. <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8683172/">Harmful chemicals</a> in tobacco smoke, including nitrosamines, vinyl chloride, tar, and 4-aminobiphenyl, are <a href="https://www.healthline.com/health/cancer/what-is-a-carcinogen#bottom-line">all known carcinogens</a>. <a href="https://www.cancerresearchuk.org/about-cancer/liver-cancer/risks-causes">According to Cancer Research UK</a>, smoking accounts for around 20% of liver cancer cases in the UK.</p> <h2>Love your liver</h2> <p>The liver is a remarkably robust organ – but it isn’t invincible. You can protect it by drinking alcohol in moderation, quitting smoking, taking medications responsibly, eating a balanced diet, staying active and keeping hydrated.</p> <p>If you notice any symptoms that may suggest liver trouble, such as ongoing fatigue, nausea, or jaundice, don’t delay speaking to your doctor. The earlier liver problems are detected, the <a href="https://britishlivertrust.org.uk/information-and-support/love-your-liver/free-liver-scan/#:%7E:text=Finding%20liver%20disease%20early%20means,t%20give%20anyone%20a%20diagnosis.&amp;text=Liver%20scans%20are%20also%20available,to%20check%20your%20liver%20health.">better the chance of successful treatment</a>.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/256921/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/dipa-kamdar-1485027">Dipa Kamdar</a>, Senior Lecturer in Pharmacy Practice, <a href="https://theconversation.com/institutions/kingston-university-949">Kingston University</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/five-common-habits-that-might-be-harming-your-liver-256921">original article</a>.</em></p> <p><em>Pexels / </em><em>Andrea Piacquadio</em></p> </div>

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Bones and clothing found in new search for Madeleine McCann

<p>Fragments of bone and items of clothing discovered during a recent search for Madeleine McCann in Portugal have been sent to Germany for forensic testing, according to new reports that offer a glimmer of hope in the long-running mystery.</p> <p>Despite initial claims the three-day operation yielded nothing significant, German media outlet Berliner Morgenpost reports that investigators did, in fact, collect “several objects” from the search site near Praia da Luz – an area linked to the prime suspect, Christian Brueckner.</p> <p>German police, in collaboration with Portuguese authorities, used ground-penetrating radar and heavy excavation equipment to comb through scrubland believed to have been used as a “rat run” by Brueckner, a convicted rapist. While early reports suggested the search was a flop, it has now emerged that small bone fragments and pieces of adult clothing were retrieved and sent to Germany for further analysis.</p> <p>A source quoted in the Morgenpost said: “Several objects have apparently been discovered, which are now being examined in more detail by the police in the laboratory. As Portuguese media report, clothing debris and bones were found, among other things. The investigators have not officially commented on whether the finds could have anything to do with Madeleine’s disappearance but that is clearly their hope.”</p> <p>Christian Brueckner, 38, has been under intense scrutiny since 2020 when German police named him as the prime suspect in the case. He is currently serving time in prison for unrelated offences, but prosecutors have struggled to secure a fresh arrest warrant tied to Madeleine’s disappearance due to a lack of concrete forensic evidence.</p> <p>This latest development may prove critical. Without a direct link tying Brueckner to the crime, authorities risk being unable to extend legal proceedings against him.</p> <p>Adding fuel to the speculation, British tabloid <em>The Sun</em> recently aired a bombshell documentary <em>Madeleine McCann: Inside the Secret Evidence</em>, which sheds light on disturbing findings at Brueckner’s abandoned factory in Germany. Items uncovered there include children’s clothing, a toddler’s bike, toys, a mask, guns and disturbing writings about child abduction – all part of what investigators describe as an overwhelming file of circumstantial evidence.</p> <p>The documentary also revealed that Brueckner allegedly discussed using chemicals like ether to kidnap a woman and child outside a preschool – details pulled directly from seized police files.</p> <p>While none of the recently discovered items have been definitively linked to Madeleine, their forensic examination is now seen as a vital next step. If a match is found, it could represent the most significant breakthrough in the case since Brueckner was identified as a suspect five years ago.</p> <p><em>Images: Supplied</em></p>

Legal

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‘Not available in your region’: what is a VPN and how can I use one safely?

<div class="theconversation-article-body"> <p>“This video is not available in your location”. It’s a message familiar to many people trying to watch global content online. But beneath this frustration lies a deeper question – how do we navigate digital borders safely and ethically?</p> <p>As our digital lives expand, so too does our desire for access. Maybe you want to see the latest streaming shows before they arrive in your country. Maybe you’re a sports fan wanting to watch live broadcasts of international events. Or perhaps you need to log into your company’s secure intranet while at home or overseas.</p> <p>Enter the virtual private network (VPN) – a technology that’s become as essential as antivirus software for many. With many commercial and free VPN providers on the market, interest in these services <a href="https://www.comparitech.com/vpn/vpn-statistics/">has grown in recent years</a>.</p> <h2>How does a VPN work?</h2> <p>A <a href="https://computingaustralia.com.au/5-minute-helpdesk-what-is-a-vpn-and-why-should-i-use-one/">VPN</a> is like a secure tunnel between your device and the internet. When you use a VPN, your <a href="https://www.esafety.gov.au/key-topics/online-tools-and-features/encryption">internal traffic is scrambled into unreadable data</a> and routed through a remote server, which also masks your real IP address.</p> <p>Think of it like this: instead of sending a postcard with your return address, you send it in an envelope to a trusted friend overseas who mails it on your behalf. To anyone looking at the envelope, it looks like the message came from your friend and not you.</p> <p>This technique shields your identity, protects your data from snoopers, and tricks websites into thinking you are browsing from another location.</p> <p>While often marketed as <a href="https://www.le-vpn.com/australia-cyber-privacy-vpn/">tools for online privacy</a>, VPNs have grown popular for another reason: access.</p> <p>Many people use VPNs to access geo-blocked content, secure their internet activity, work remotely – <a href="https://www.cyber.gov.au/protect-yourself/staying-secure-online/security-tips-remote-working">especially when handling sensitive data</a> – and protect against online tracking and targeted advertising.</p> <h2>VPNs are legal, if a bit grey</h2> <p>VPN services are offered by dozens of providers globally. Companies such as NordVPN, ProtonVPN, ExpressVPN and Surfshark offer paid subscriptions with strong security guarantees. Free VPNs also exist but come with caveats (more on this in a moment).</p> <p>In <a href="https://us.norton.com/blog/privacy/are-vpns-legal">most countries</a>, including <a href="https://www.cyber.gov.au/protect-yourself/staying-secure-online/connecting-to-public-wi-fi">Australia</a>, using a VPN is completely legal.</p> <p>However, what makes it murky is what one might use it <em>for</em>. While using a VPN is legal, engaging in illegal activities while using one remains prohibited.</p> <p>Streaming services like Netflix or Disney+ license content by region. Using a VPN to access a foreign catalogue may violate their terms of service and potentially be grounds for account suspension.</p> <p>Australian law does not criminalise accessing geo-blocked content via VPN, but the copyright act does prohibit circumventing “technological protection measures” in certain cases.</p> <p>The grey area lies in enforcement. Technically, copyright law does ban getting around certain protections. However, the <a href="https://www.copyright.org.au/browse/book/ACC-Geoblocking%2C-VPNs-%26-Copyright-INFO127">latest advice does not mention</a> any cases where regular users have been taken to court for this kind of behaviour.</p> <p>So far, enforcement has mostly targeted websites and platforms that host or enable large-scale copyright infringement; not everyday viewers who want to watch a show a bit early.</p> <h2>Beware of ‘free’ VPNs</h2> <p>Not all VPNs are created equal. While premium services invest in strong encryption and privacy protections, free VPNs often make money by collecting user data – <a href="https://www.choice.com.au/electronics-and-technology/internet/connecting-to-the-internet/buying-guides/vpn-services">the very thing you may be trying to avoid</a>.</p> <p>Risks of unsafe VPNs include data leaks, injection of ads or trackers into your browsing, and malware and spyware, <a href="https://www.abc.net.au/news/2017-01-25/viruses-spyware-found-in-alarming-number-of-android-vpn-apps/8210796">especially in free mobile apps</a> that claim to provide a VPN service.</p> <p>Using a poorly designed or dishonest VPN is like hiring a bodyguard who sells your location. It might give the impression of safety, but you may actually be more vulnerable than before.</p> <h2>Okay, so how do I choose a VPN?</h2> <p>With so many VPNs available, both free and paid, it can be hard to know which one to trust. If you are considering a VPN, here are five things to look for.</p> <p><strong><a href="https://www.expressvpn.com/what-is-vpn/policy-towards-logs">No-log policy</a>.</strong> A trustworthy VPN should have a strict no-log policy, meaning it does not store any records of your internet activity, connection time or IP address. This ensures even if the VPN provider is hacked, subpoenaed or pressured by a government, they have nothing to hand over.</p> <p><strong>Strong encryption standards.</strong> Encryption is what makes your data unreadable to anyone snooping on your connection, such as hackers on public WiFi or your internet provider. A somewhat technical thing to look out for is <a href="https://www.kiteworks.com/risk-compliance-glossary/aes-256-encryption/">AES 256-bit encryption</a> – it’s extremely secure and is used by banks and governments.</p> <p><strong>Independent audits.</strong> Reliable VPN services <a href="https://vpncentral.com/nordvpn-reaffirms-no-log-claims-with-fifth-deloitte-audit/">voluntarily undergo third-party audits</a> to verify their privacy claims and the security of their infrastructure.</p> <p><strong>Kill switch.</strong> A kill switch is a critical safety feature that automatically blocks internet traffic if the VPN connection drops. This prevents your real IP address and data from being exposed, even momentarily.</p> <p><strong>Jurisdiction.</strong> VPNs are subject to the laws of the country they are based in. The countries in the <a href="https://cyberinsider.com/5-eyes-9-eyes-14-eyes/">Five Eyes intelligence alliance</a> (Australia, Canada, United Kingdom, United States and New Zealand) may legally compel providers to hand over user data. If a VPN service has a strict no-log policy and does not collect information about what you do online, then even under legal pressure, there is nothing to hand over. So, you are safe.</p> <p>In an era of growing surveillance, cybercrime and corporate data collection, VPNs are essential tools for reclaiming your online privacy and data.</p> <p>But like any tool, the effectiveness (and ethics) of VPNs depend on how you use them. Next time you fire up your VPN, ask yourself – am I just dodging a digital border, or actively protecting my online freedom?<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/256559/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/meena-jha-542776">Meena Jha</a>, Head Technology and Pedagogy Cluster CML-NET, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/not-available-in-your-region-what-is-a-vpn-and-how-can-i-use-one-safely-256559">original article</a>.</em></p> </div>

Technology

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How to get started investing later in life

<p>For some people – particularly women – investing may not have been an option until now, constrained by a lack of income while raising children or low incomes leaving nothing to invest once the bills were paid.</p> <p>Others find a new-found need to invest later in life, such as after a separation, inability to work through illness or injury, or the sudden death of their partner.</p> <p>No matter your reason for exploring investing later in life, the following pointers will get you on your way to building financial independence and a comfortable retirement.</p> <p><strong>Update your strategy</strong></p> <p>When was the last time you updated your spending and investment plan (or household budget)? It may have been before the kids left home, your mortgage was paid off, or you began transitioning into part-time retirement. </p> <p>If so, your living costs have changed significantly – work expenses, home energy consumption, groceries etc. Furthermore, your goals, healthcare and lifestyle needs may also have changed.</p> <p>Update your strategy to align with your current goals, values, income and spending habits. Only then will you understand how much you can afford to invest and where to direct those funds.</p> <p><strong>Right-size your superannuation</strong></p> <p>In your later years, super is likely to be front of mind. Ensure this investment works its hardest for you by scrutinising its:</p> <p>•<span style="white-space: pre;"> </span>Structure: retail or industry fund? SMSF? Each has its own costs and benefits to contemplate.</p> <p>•<span style="white-space: pre;"> </span>Investments: reexamine the types of assets held, level of diversification and risk weighting.</p> <p>•<span style="white-space: pre;"> </span>Insurances: do you have adequate life, permanent disability and income protection cover? </p> <p>•<span style="white-space: pre;"> </span>Take advantage of superannuation strategies you may not be aware of</p> <p><strong>Unlock home equity</strong></p> <p>The biggest source of money you likely have at this stage of life is equity in your home. </p> <p>This can be used to invest with minimal impact on your everyday finances. In fact, unused equity is effectively dead money (until you sell the property).</p> <p>I always urge caution on reverse mortgages. In theory, they seem like a great way of unlocking equity without saddling you with regular repayments. However, they typically:</p> <p>•<span style="white-space: pre;"> </span>accumulate more debt.</p> <p>•<span style="white-space: pre;"> </span>have higher interest rates than standard mortgages.</p> <p>•<span style="white-space: pre;"> </span>only grant access to a portion of your equity.</p> <p>•<span style="white-space: pre;"> </span>can restrict your options to downsize later.</p> <p>•<span style="white-space: pre;"> </span>could leave you with no remaining equity when you sell the property or nothing to leave to your benefactors when you pass away.</p> <p><strong>Consider downsizing</strong></p> <p>An alternative to refinancing is downsizing from the family home. </p> <p>As well as unlocking money for investing, you benefit from lower upkeep costs (and cleaning!) on a smaller property and can make a lifestyle change at the same time (moving nearer to family, away from bustling cities, or into supported care if required).</p> <p>Additionally, you may be able to use part of the sale proceeds (up to $300,000) to turbocharge your super with a one-off <a href="https://www.ato.gov.au/individuals-and-families/super-for-individuals-and-families/super/growing-and-keeping-track-of-your-super/how-to-save-more-in-your-super/downsizer-super-contributions" target="_blank" rel="noopener">downsizer contribution</a>.</p> <p><strong>Examine pension impacts</strong></p> <p>Investing can impact your ability to claim the age pension when you retire, and how much you receive. </p> <p>This often comes to bite people who unlock equity in their home to invest, without realising that doing so means the money suddenly counts towards the pension means test.</p> <p>Before doing anything, methodically weigh up which will leave you financially better off – claiming a full or part pension, or self-funding your retirement through investments.</p> <p><strong>Minimise tax</strong></p> <p>Hefty tax bills can easily wipe out any investment returns, making tax a crucial factor in your decision-making.</p> <p>Potential tax considerations to factor into your strategy include:</p> <p>•<span style="white-space: pre;"> </span>Determining the most tax-effective ownership structure (e.g. do you invest in your or partner’s name? Through your super? Through a trust or company?</p> <p>•<span style="white-space: pre;"> </span>Incorporating stamp duty into purchase costs.</p> <p>•<span style="white-space: pre;"> </span>Ensuring there is enough profit from the sale of an investment to cover Capital Gains Tax (CGT) and income tax liabilities before deciding to sell.</p> <p>•<span style="white-space: pre;"> </span>Timing a sale to fall within the optimal financial year (e.g. in a year where your taxable income is lower or when relevant tax changes come into effect).</p> <p><strong>Invest in knowledge</strong></p> <p>Later in life, you have fewer working years remaining to recover any losses. Given the far-reaching implications of investing, I highly recommend first speaking to a financial adviser.  Many times the fees are paid for in initial tax savings. </p> <p>They can help you maximise your returns, minimise your tax, ensure you don’t inadvertently leave yourself worse off and give you peace of mind.</p> <p>After all, the whole point of investing is to make money. And, without current professional advice, you simply don’t know what you don’t know!</p> <p><em>Helen Baker is a licensed Australian financial adviser and author of the new book, Money For Life: How to build financial security from firm foundations (Major Street Publishing $32.99). Helen is among the 1% of financial planners who hold a master’s degree in the field. Proceeds from book sales are donated to charities supporting disadvantaged women and children. Find out more at <a href="http://www.onyourowntwofeet.com.au/" target="_blank" rel="noopener">www.onyourowntwofeet.com.au</a></em></p> <p><em>Disclaimer: The information in this article is of a general nature only and does not constitute personal financial or product advice. Any opinions or views expressed are those of the authors and do not represent those of people, institutions or organisations the owner may be associated with in a professional or personal capacity unless explicitly stated. Helen Baker is an authorised representative of BPW Partners Pty Ltd AFSL 548754.</em></p> <p> </p>

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Seven things to eat or avoid to lower your blood pressure

<div class="theconversation-article-body"> <p>High blood pressure is called the <em>silent killer</em>. That’s because it has <a href="http://www.heart.org/HEARTORG/Conditions/HighBloodPressure/SymptomsDiagnosisMonitoringofHighBloodPressure/What-are-the-Symptoms-of-High-Blood-Pressure_UCM_301871_Article.jsp#.V7OWWI9OI2w">no symptoms</a>. Having high blood pressure (hypertension) increases your risk of heart disease, stroke, heart failure and kidney disease.</p> <p>Six million Australian adults (34%) have high blood pressure – 140/90 millimetres of mercury (mmHg) or more – or take medications for it. Of those, <a href="https://heartfoundation.org.au/images/uploads/publications/PRO-167_Hypertension-guideline-2016_WEB.pdf">four million have high blood pressure that isn’t treated or under control</a>.</p> <p>No wonder heart disease and stroke directly cost the Australian economy <a href="http://www.aihw.gov.au/WorkArea/DownloadAsset.aspx?id=60129546379">A$7.7 billion a year</a>.</p> <p>There is some good news. High blood pressure can be treated or prevented. Eating oats, fruit and vegetables – and beetroot, in particular – helps. So does avoiding salt, liquorice, caffeine and alcohol.</p> <p>Optimal blood pressure is <a href="https://theconversation.com/blood-pressure-targets-what-does-the-new-guideline-say-and-how-low-should-you-go-62684">120 mmHg or less</a> over 80 mmHg or less. Lowering it by 1-2 mmHg can have a big impact on reducing your risk of heart disease and stroke, and the nation’s health care costs.</p> <h2>What to eat to lower your blood pressure</h2> <p><strong>Rolled oats</strong></p> <p>A <a href="http://www.ncbi.nlm.nih.gov/pubmed/25668347">review with five research trials included</a> tested the impact of oats on systolic blood pressure (the first blood pressure number, which is the pressure at which the heart pumps blood) and diastolic blood pressure (the second number, which is when the heart relaxes) in about 400 healthy adults.</p> <p>The researchers found that systolic blood pressure was 2.7  mmHg lower and diastolic blood pressure was 1.5 mmHg lower when participants ate around 60 grams of rolled oats (a packed half-cup raw oats) or 25 grams of oat bran per day.</p> <p>This quantity of oats or oat bran contains around four grams of a type of fibre called <a href="http://www.healthline.com/health/beta-glucan-heart-healthy">beta-glucan</a>.</p> <p>For each extra one gram of total daily fibre, there was an extra 0.11 mmHg reduction in diastolic blood pressure.</p> <figure class="align-right "><figcaption></figcaption></figure> <p>Recommended <a href="https://www.nrv.gov.au/nutrients/dietary-fibre">minimum daily adult fibre intakes</a> are 30 grams for men and 25 grams for women.</p> <p>While some of fibre’s effect is due to weight loss, soluble fibres produce bioactive products when they’re fermented in the large bowel. These work directly to lower blood pressure.</p> <p>To improve your blood pressure, eat rolled oats or oat bran for breakfast, add to meat patties, or mix with breadcrumbs in recipes that call for crumbing.</p> <p><strong>Beetroot</strong></p> <p>Beetroot is extremely rich in a compound called inorganic nitrate. During digestion, this gets converted into nitric oxide, which causes arteries to dilate. This directly lowers the pressure in them.</p> <p>A <a href="http://www.ncbi.nlm.nih.gov/pubmed/23596162">review of 16 trials</a> of mostly healthy young men found drinking beetroot juice was associated with a 4.4 mmHg reduction in systolic blood pressure. But it found no change in diastolic blood pressure.</p> <p>However a recent <a href="http://www.ncbi.nlm.nih.gov/pubmed/25421976">trial in 68 adults</a> who already had high blood pressure found beetroot juice reduced systolic and diastolic blood pressure.</p> <figure class="align-right "><figcaption></figcaption></figure> <p>The men were randomly assigned to drink 250ml (one cup) of beetroot juice daily for four weeks or a non-active placebo.</p> <p>Blood pressure in the men who drank the beetroot juice reduced over 24 hours, with systolic blood pressure 7.7 mmHg lower and diastolic blood pressure 5.2 mmHg lower.</p> <p>Try wrapping whole fresh beetroot in foil and baking in the oven until soft, or grate beetroot and stir-fry with red onion and curry paste and eat as a relish.</p> <p><strong>Vitamin C</strong></p> <p>Vitamin C, or <a href="https://en.wikipedia.org/wiki/Vitamin_C">ascorbic acid</a>, is found in fresh vegetables and fruit. An average serve contains 10-40mg of vitamin C.</p> <p>In a review of 29 short-term <a href="http://www.ncbi.nlm.nih.gov/pubmed/22492364">trials of vitamin C supplements</a>, people were given 500 mg of vitamin C per day for about eight weeks.</p> <p>Blood pressure significantly improved, with an average reduction in systolic blood pressure of 3.84 mmHg and 1.48 mmHg for diastolic blood pressure.</p> <figure class="align-right "><figcaption></figcaption></figure> <p>When only those with existing high blood pressure were considered, the drop in systolic blood pressure was 4.85 mmHg.</p> <p>However, those <a href="http://www.ncbi.nlm.nih.gov/pubmed/26463139">at risk of kidney stones</a> need to be cautious about taking vitamin C supplements. Excess vitamin C is excreted via the kidneys and can contribute to the formation of kidney stones.</p> <p>One advantage of getting more vitamin C from eating more vegetables and fruit is that you boost your potassium intake, which helps <a href="http://www.bloodpressureuk.org/microsites/salt/Home/Whypotassiumhelps">counter the effects of sodium</a> from salt.</p> <h2>What to avoid to lower your blood pressure</h2> <p><strong>Salt</strong></p> <p>Salt or <a href="https://en.wikipedia.org/wiki/Salt">sodium chloride</a> has been used to preserve foods and as a flavour enhancer for centuries.</p> <p>High salt intakes are <a href="http://www.bmj.com/content/312/7041/1249?ijkey=cd4b7840cc559055a2997d90100361217218f6e8&keytype2=tf_ipsecsha">associated with higher blood pressure</a>.</p> <figure class="align-right "><figcaption></figcaption></figure> <p>Adults <a href="https://www.nrv.gov.au/nutrients/sodium">need between 1.2 to 2.4g of salt each day</a> (one-quarter to a half teaspoon), which is equivalent to 460 to 920mg of sodium.</p> <p>But in Australia seven out of ten men and three in ten women eat way more than that – and much more than the upper recommended limit of 5.9 grams of salt (about one teaspoon) or <a href="http://www.abs.gov.au/ausstats/abs@.nsf/Lookup/by%20Subject/4364.0.55.008%7E2011-12%7EMain%20Features%7ESodium%7E403">2,300 mg of sodium per day</a>.</p> <p>If you add salt to food yourself this pushes your sodium intake even higher.</p> <p>A <a href="http://www.ncbi.nlm.nih.gov/pubmed/23558162">review of studies</a> involving 3,230 people showed that reducing salt intakes by 4.4 grams a day could reduce systolic blood pressure by about 4.2 mmHg and diastolic by 2.1 mmHg.</p> <p>In those who had high blood pressure there were even bigger reductions of 5.4 mmHg (systolic) and 2.8 mmHg (diastolic).</p> <p>Avoid foods high in sodium. Don’t add salt and try to choose lower-salt versions of processed foods.</p> <p><strong>Alcohol</strong></p> <p>Consuming one or more alcoholic drink a day is <a href="http://www.ncbi.nlm.nih.gov/pubmed/15752957">associated with systolic blood pressure</a> that is about 2.7 mmHg and diastolic blood pressure 1.4 mmHg higher than non-drinkers.</p> <p>Interestingly, when you first drink an alcoholic beverage, blood pressure goes down, only to rise later.</p> <figure class="align-right "><figcaption></figcaption></figure> <p>A rise in blood pressure after drinking alcohol is <a href="http://www.ncbi.nlm.nih.gov/pubmed/26123682">more likely to happen when you’re awake</a>, rather during sleep.</p> <p>The bad news is that larger amounts of alcohol increase your risk of high blood pressure, <a href="http://www.ncbi.nlm.nih.gov/pubmed/23126352">especially in men</a>, but also to a lesser extent <a href="http://www.ncbi.nlm.nih.gov/pubmed/19804464">in women</a>.</p> <p><strong>Liquorice</strong></p> <p>High blood pressure due to eating black liquorice is rare, but <a href="http://www.ncbi.nlm.nih.gov/pubmed/26380428">case reports have occurred</a>.</p> <p>Most liquorice candy sold currently contains very little true liquorice root and therefore, little <a href="https://en.wikipedia.org/wiki/Glycyrrhizin">glycyrrhizic acid</a> (GZA), the active ingredient.</p> <figure class="align-right "><figcaption></figcaption></figure> <p>Occasionally, liquorice candy does contain GZA in large amounts. <a href="http://www.ncbi.nlm.nih.gov/pubmed/10944880">GZA causes sodium retention and potassium loss</a>, which contributes to high blood pressure.</p> <p>So check liquorice food labels. Take care <em>if</em> it contains liquorice root.</p> <p><strong>Caffeine</strong></p> <p>Caffeine is most commonly consumed in coffee, tea, cola and energy drinks.</p> <p>High intakes of caffeine from coffee <a href="http://www.ncbi.nlm.nih.gov/pubmed/21880846">increase blood pressure</a> in the short term.</p> <figure class="align-right "><figcaption></figcaption></figure> <p>In a <a href="https://www.ncbi.nlm.nih.gov/pubmed/21880846">review of five trials</a>, people given one to two cups of strong coffee had an increase in their systolic blood pressure of 8.1 mmHg and 5.7 mmHg for diastolic blood pressure, up to about three hours after drinking it.</p> <p>But three studies that lasted two weeks found drinking coffee did not increase blood pressure compared with decaffeinated coffee or avoiding caffeine. So you need to monitor your individual response to caffeine.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/63940/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/clare-collins-7316">Clare Collins</a>, Professor in Nutrition and Dietetics, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a>; <a href="https://theconversation.com/profiles/tracy-burrows-172931">Tracy Burrows</a>, Senior Lecturer Nutrition and Dietetics, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a>, and <a href="https://theconversation.com/profiles/tracy-schumacher-295602">Tracy Schumacher</a>, Research Associate, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/seven-things-to-eat-or-avoid-to-lower-your-blood-pressure-63940">original article</a>.</em></p> <p><em>Image: St Mary's Healthcare System</em></p> </div>

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What is a blood cholesterol ratio? And what should yours be?

<div class="theconversation-article-body"> <p>Have you had a blood test to check your cholesterol level? These check the different blood fat components:</p> <ul> <li>total cholesterol</li> <li>LDL (low-density lipoprotein), which is sometimes called “bad cholesterol”</li> <li>HDL (high-density lipoprotein), which is sometimes called “good cholesterol”</li> <li>triglycerides.</li> </ul> <p>Your clinician then compares your test results to normal ranges – and may use ratios to compare different types of cholesterol.</p> <p><iframe id="8KC9s" class="tc-infographic-datawrapper" style="border: 0;" src="https://datawrapper.dwcdn.net/8KC9s/6/" width="100%" height="400px" frameborder="0" scrolling="no"></iframe></p> <p>High blood cholesterol is a major risk factor for cardiovascular disease. This is a broad term that includes disease of blood vessels throughout the body, arteries in the heart (known as coronary heart disease), heart failure, heart valve conditions, arrhythmia and stroke.</p> <p>So what does cholesterol do? And what does it mean to have a healthy cholesterol ratio?</p> <h2>What are blood fats?</h2> <p>Cholesterol is a waxy type of fat made in the liver and gut, with a small amount of pre-formed cholesterol coming from food.</p> <p>Cholesterol is found in all cell membranes, contributing to their structure and function. Your body <a href="https://www.ncbi.nlm.nih.gov/books/NBK513326/">uses cholesterol to make</a> vitamin D, bile acid, and hormones, including oestrogen, testosterone, cortisol and aldosterone.</p> <p>When there is too much cholesterol in your blood, it gets deposited into artery walls, making them hard and narrow. This process is called <a href="https://en.wikipedia.org/wiki/Atherosclerosis">atherosclerosis</a>.</p> <p>Cholesterol is <a href="https://www.ncbi.nlm.nih.gov/books/NBK513326/">packaged with</a> <a href="https://en.wikipedia.org/wiki/Triglyceride">triglycerides</a> (the most common type of fat in the body) and specific <a href="https://en.wikipedia.org/wiki/Apolipoprotein">“apo” proteins</a> into “lipo-proteins” as a package called “very-low-density” lipoproteins (VLDLs).</p> <p>These are transported via the blood to body tissue in a form called low-density lipoprotein (LDL) cholesterol.</p> <p>Excess cholesterol can be transported back to the liver by high-density lipoprotein, the HDL, for removal from circulation.</p> <p>Another less talked about blood fat is Lipoprotein-a, or Lp(a). This is determined by your genetics and <a href="https://www.victorchang.edu.au/heart-disease/high-cholesterol">not influenced by lifestyle factors</a>. About one in five (<a href="https://www1.racgp.org.au/ajgp/2021/may/lipid-management-and-implications-for-australian-g">20%</a>) of Australians are carriers.</p> <p>Having a high Lp(a) level is an independent cardiovascular disease risk factor.</p> <h2>Knowing your numbers</h2> <p>Your blood fat levels <a href="https://www.heartfoundation.org.au/your-heart/high-blood-cholesterol">are affected by</a> both modifiable factors:</p> <ul> <li>dietary intake</li> <li>physical activity</li> <li>alcohol</li> <li>smoking</li> <li>weight status.</li> </ul> <p>And non-modifiable factors:</p> <ul> <li>age</li> <li>sex</li> <li>family history.</li> </ul> <p><iframe id="S7Xp4" class="tc-infographic-datawrapper" style="border: 0;" src="https://datawrapper.dwcdn.net/S7Xp4/1/" width="100%" height="400px" frameborder="0" scrolling="no"></iframe></p> <h2>What are cholesterol ratios?</h2> <p>Cholesterol ratios are sometimes used to provide more detail on the balance between different types of blood fats and to evaluate risk of developing heart disease.</p> <p>Commonly used ratios include:</p> <h2>1. Total cholesterol to HDL ratio</h2> <p>This ratio is used in Australia to <a href="https://www.cvdcheck.org.au/calculator">assess risk of heart disease</a>. It’s calculated by dividing your total cholesterol number by your HDL (good) cholesterol number.</p> <p>A higher ratio (<a href="https://www.medicalnewstoday.com/articles/cholesterol-ratio-calculator#how-to-calculate">greater than 5</a>) is associated with a higher risk of heart disease, whereas a lower ratio is associated with a lower risk of heart disease.</p> <p>A <a href="https://pubmed.ncbi.nlm.nih.gov/36589799/">study</a> of 32,000 Americans over eight years found adults who had either very high, or very low, total cholesterol/HDL ratios were at 26% and 18% greater risk of death from any cause during the study period.</p> <p>Those with a ratio of greater than 4.2 had a 13% higher risk of death from heart disease than those with a ratio lower than 4.2.</p> <h2>2. Non-HDL cholesterol to HDL cholesterol ratio (NHHR)</h2> <p>Non-HDL cholesterol is the total cholesterol minus HDL. Non-HDL cholesterol includes all blood fats such as LDL, triglycerides, Lp(a) and others. This ratio is abbreviated as NHHR.</p> <p>This ratio has been used more recently because it compares the ratio of “bad” blood fats that can contribute to atherosclerosis (hardening and narrowing of the arteries) to “good” or anti-atherogenic blood fats (HDL).</p> <p>Non-HDL cholesterol is a <a href="https://pubmed.ncbi.nlm.nih.gov/31170997/">stronger predictor of cardiovascular disease risk</a> than LDL alone, while <a href="https://pubmed.ncbi.nlm.nih.gov/37228232/">HDL is associated with</a> lower cardiovascular disease risk.</p> <p>Because this ratio removes the “good” cholesterol from the non-HDL part of the ratio, it is not penalising those people who have really high amounts of “good” HDL that make up their total cholesterol, which the first ratio does.</p> <p>Research has suggested this ratio may be a stronger <a href="https://pubmed.ncbi.nlm.nih.gov/39949279/">predictor of atherosclerosis in women than men</a>, however more research is needed.</p> <p>Another <a href="https://pubmed.ncbi.nlm.nih.gov/39415313">study</a> followed more than 10,000 adults with type 2 diabetes from the United States and Canada for about five years. The researchers found that for each unit increase in the ratio, there was around a 12% increased risk of having a heart attack, stroke or death.</p> <p>They identified a risk threshold of 6.28 or above, after adjusting for other risk factors. Anyone with a ratio greater than this is at very high risk and would require management to lower their risk of heart disease.</p> <h2>3. LDL-to-HDL cholesterol ratio</h2> <p>LDL/HDL is calculated by dividing your LDL cholesterol number by the HDL number. This gives a ratio of “bad” to “good” cholesterol.</p> <p>A lower ratio (<a href="https://www.medicalnewstoday.com/articles/cholesterol-ratio-calculator#how-to-calculate">ideal is less than 2.0</a>) is associated with a lower risk of heart disease.</p> <p>While there is lesser focus on LDL/HDL, these ratios have been shown to be predictors of occurrence and <a href="https://pubmed.ncbi.nlm.nih.gov/35843962/">severity of heart attacks</a> in patients presenting with chest pain.</p> <p>If you’re worried about your cholesterol levels or cardiovascular disease risk factors and are aged 45 and over (or over 30 for First Nations people), consider seeing your GP for a Medicare-rebated <a href="https://www.heartfoundation.org.au/your-heart/heart-health-checks">Heart Health Check</a>.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/253126/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/clare-collins-7316">Clare Collins</a>, Laureate Professor in Nutrition and Dietetics, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a> and <a href="https://theconversation.com/profiles/erin-clarke-1314081">Erin Clarke</a>, Postdoctoral Researcher, Nutrition and Dietetics, <a href="https://theconversation.com/institutions/university-of-newcastle-1060">University of Newcastle</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/what-is-a-blood-cholesterol-ratio-and-what-should-yours-be-253126">original article</a>.</em></p> <p><em>Image: Everlabs</em></p> </div>

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What is grounding and can it improve your sleep?

<div class="theconversation-article-body">Have you ever felt an unexpected sense of calm while walking barefoot on grass? Or noticed your stress begin to fade as you stood ankle deep in the ocean? If so, you may have unknowingly “grounded” yourself to the earth.</p> <p>Grounding, <a href="https://www.sciencedirect.com/science/article/pii/S2319417022001573">also known as earthing</a>, is the practice of making direct physical contact with the Earth’s surface. Our ancestors embraced this trend without knowing it. But with the invention of indoor homes, footpaths, roads, and even shoes, we have become <a href="https://onlinelibrary.wiley.com/doi/10.1155/2012/291541">less physically connected with the earth</a>.</p> <p>Grounding has been suggested to have <a href="https://www.healthline.com/health/grounding">a number of benefits</a>, such as improving mood, and reducing stress and pain. But overall, there’s limited conclusive evidence on the benefits of grounding.</p> <p>Somewhat ironically, the concept of grounding in 2025 is heavily influenced by technology, rather than getting out into nature. Consumers are being hit with social media reels promoting a range of technologies that ground us, and improve our health.</p> <p>Among the most common are promises of improved sleep with the use of a grounding sheet or mat. But is this just another TikTok trend, or could these products really help us get a better night’s sleep?</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-captioned="" data-instgrm-permalink="https://www.instagram.com/reel/DHne7CasELA/?utm_source=ig_embed&amp;utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/reel/DHne7CasELA/?utm_source=ig_embed&amp;utm_campaign=loading" target="_blank" rel="noopener">A post shared by Grounding (@groundingofficial)</a></p> </div> </blockquote> <h2>Bringing the outdoors in</h2> <p>The <a href="https://www.sciencedirect.com/science/article/pii/S2319417022001585">human body is conductive</a>, which means it can exchange electricity with Earth and artificial sources, such as electronic devices or objects. (Sometimes, this exchange can result in an electric or <a href="https://theconversation.com/why-do-i-get-static-shocks-from-everyday-objects-is-it-my-shoes-240554">static shock</a>.)</p> <p>Proponents of grounding <a href="https://www.sciencedirect.com/science/article/pii/S1550830719305476">claim the practice reconnects</a> “the conductive human body to the Earth’s natural and subtle surface electric charge”.</p> <p>They credit this process with physiological and psychological benefits (but again, the evidence is limited).</p> <p>Grounding technologies can vary in type (for example, under-desk foot mats, mattress toppers and bed sheets) but all are designed to provide a path for electric charges to flow between your body and the earth.</p> <p>The bottom prong you see in your three-prong wall socket is a “ground” or “earth” terminal. It provides a direct connection to earth via your building’s wiring, diverting excess or unsafe voltage into the ground. This protects you and your devices from potential <a href="https://store.standards.org.au/reader/as-nzs-3112-2017?preview=1&amp;utm">electrical faults</a>.</p> <p><a href="https://www.mdpi.com/2227-9059/11/1/57">Grounding technology</a> uses this terminal as a pathway for the proposed electrical exchange between you and earth, while in the comfort of your home.</p> <h2>Could grounding improve your sleep?</h2> <p>The research in this area is still emerging.</p> <p>A <a href="https://www.sciencedirect.com/science/article/pii/S2212958825000059">2025 study</a> from Korea recruited 60 participants, gave half of them a grounding mat, and gave the other half a visually identical mat that didn’t have grounding technology. The researchers used a “double-blind” protocol, meaning neither the participants nor the researchers knew which participants were given grounding mats.</p> <p>All participants wore sleep trackers and were asked to use their mat (that is, sit or lie on it) for six hours per day. The researchers found that after 31 days, participants in the grounding mat group slept longer on average (as measured by their sleep trackers) than those in the control group.</p> <p>The researchers also used questionnaires to collect measures of insomnia, sleep quality, daytime sleepiness, and stress. After 31 days, participants in both groups improved on all measures.</p> <p>There were no differences between the grounded and ungrounded groups for sleep quality, daytime sleepiness, and stress. And while grounded participants showed significantly lower insomnia severity after the intervention, this difference was also present at the start of the study. So it’s unclear if grounding had a tangible impact on sleep.</p> <p>In another double-blind study, published in 2022, researchers in Taiwan examined the effectiveness of using grounding mats to improve sleep among patients with Alzheimer’s disease. The findings indicated that spending <a href="https://www.mdpi.com/2227-9032/10/3/581">30 minutes on a grounding mat</a> five times per week resulted in improved sleep quality.</p> <p>While previous research has suggested using grounding technologies may lead to <a href="https://pubmed.ncbi.nlm.nih.gov/25748085/">improvements in mood</a>, no differences were seen in measures of anxiety and depression in this study.</p> <h2>Grounding for gains?</h2> <p>Grounding technology has also been touted as <a href="https://www.tiktok.com/@down_to_ground/video/7310937768811597074?q=grounding%20mattress&amp;t=1742787657768">having other benefits</a>, such as reducing pain and inflammation.</p> <p>A <a href="https://doi.org/10.3389/fphys.2019.00035">2019 study</a> found participants who slept on a grounding mat after intense exercise felt less sore and showed lower levels of inflammation in their blood compared to those who were ungrounded.</p> <p>Grounding after a workout may help you feel better and recover faster, but it’s still unclear whether and how grounding affects long-term training results or fitness gains.</p> <h2>Add to cart?</h2> <p>So should you cash in on your favourite influencer’s discount code and grab a grounding mat? At the risk of spouting a common cliche of cautious scientists, our answer is that we don’t know yet.</p> <p>What we do know is the existing research, albeit emerging, has shown no evidence grounding technology can negatively affect your sleep or recovery after exercise. So if you love your grounding mat or grounding sheet, or want to see if grounding works for you, feel free to give it a go.</p> <p>Keep in mind, grounding products can retail for anywhere from around A$30 to $300 or more.</p> <p>On the other hand, grounding on the grass in the great outdoors is free. While there’s limited evidence that grounding outdoors can improve sleep, spending time in outdoor light may itself benefit <a href="https://pubmed.ncbi.nlm.nih.gov/34488088/">sleep, regulate circadian rhythms</a>, and improve mood.</p> <p>Finally, while grounding could be an interesting strategy to try, if you’re experiencing ongoing problems with your sleep, or suspect you may have a sleep disorder, the first step should be reaching out to a medical professional, such as your GP.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/253347/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/dean-j-miller-808724">Dean J. Miller</a>, Senior Lecturer, Appleton Institute, HealthWise Research Group, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a> and <a href="https://theconversation.com/profiles/charlotte-gupta-347235">Charlotte Gupta</a>, Senior Postdoctoral Research Fellow, Appleton Institute, HealthWise Research Group, <a href="https://theconversation.com/institutions/cquniversity-australia-2140">CQUniversity Australia</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/what-is-grounding-and-could-it-improve-my-sleep-heres-the-science-behind-this-tiktok-trend-253347">original article</a>.</em></p> <p><em>Images: Instagram</em></p> </div>

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Can drinking champagne reduce your risk of sudden cardiac arrest?

<div class="theconversation-article-body"> <p>“My only regret in life is that I didn’t drink enough champagne,” the English economist and philosopher John Maynard Keynes (1883–1946) is reported to have said. As it turns out, there may be a surprising ounce of truth to that quote.</p> <p>Picture this: a glass of champagne – bubbly, crisp and, for many, reserved for toasts and celebrations. Now imagine it being mentioned in the same sentence as a way to help prevent <a href="https://www.bhf.org.uk/informationsupport/conditions/cardiac-arrest">sudden cardiac arrest</a>: a condition where the heart abruptly stops beating, killing tens of thousands each year, often without warning. Sounds too good to be true, right?</p> <p>Yet, <a href="https://onlinecjc.ca/article/S0828-282X(25)00171-0/fulltext">a Canadian study</a> has uncovered a curious link. Using data from over half a million people in the health research database the <a href="https://www.ukbiobank.ac.uk/">UK Biobank</a>, researchers found that those who consumed moderate amounts of white wine or champagne had a lower risk of experiencing sudden cardiac arrest. Surprising, especially given the widely held belief <a href="https://academic.oup.com/eurheartj/article/46/2/173/7920813?login=false#google_vignette">that red wine</a>, not white, is what benefits the heart.</p> <figure><iframe src="https://www.youtube.com/embed/9JvI392Iep8?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>To rule out coincidence, the researchers double-checked their findings using genetic data – and the connection seemed to hold firm. This suggests there might be more to the story than chance alone.</p> <p>The study didn’t stop at wine. It explored more than 100 lifestyle and environmental factors tied to sudden cardiac arrest, including diet, exercise, air pollution, emotional wellbeing, body composition and education levels – all of which have been independently associated with risk. The conclusion? Up to 63% of sudden cardiac arrest cases could potentially be prevented by addressing these risk factors.</p> <p>Among all the protective factors identified, a few stood out: fruit consumption, regular computer use (yes, really) and moderate drinking of white wine or champagne were all linked to a reduced risk of sudden cardiac arrest. Why? That remains uncertain.</p> <p>One theory is that white wine contains antioxidants that may support heart health. Another possibility is that people who drink these types of beverages may also be more affluent and more likely to engage in other healthy behaviour, such as eating well, exercising regularly – and have access to better healthcare.</p> <p>But before you pop a cork in celebration, a word of caution: alcohol remains a complex and often contradictory player in heart health. Other large-scale studies suggest a <a href="https://www.bmj.com/content/356/bmj.j909">U-shaped relationship</a> between alcohol and cardiovascular disease. Non-drinkers may have a certain level of risk, moderate drinkers of one glass of wine a day <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC7020057/">may see</a> some benefit, but heavy drinking sharply increases the risk of high blood pressure, stroke and heart failure.</p> <p><a href="https://doi.org/10.1016/j.hrthm.2021.10.022">One observational study</a> involving over 400,000 participants even found that moderate drinking could raise the risk of <a href="https://www.nhs.uk/conditions/arrhythmia/">arrhythmias</a>, which in some cases can lead to sudden death.</p> <p>So while champagne may offer a hopeful glimmer, it’s no magic bullet. The study’s broader message was clear: it’s the overall lifestyle that matters most. Better sleep, regular physical activity and <a href="https://theconversation.com/why-heart-patients-have-trouble-sticking-to-a-healthy-diet-and-3-things-that-help-them-eat-better-239172">a balanced diet</a> significantly reduced the risk of sudden cardiac arrest – and could prevent nearly one in five cases.</p> <figure><iframe src="https://www.youtube.com/embed/jdgYN1QgKng?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>On the flip side, obesity, high blood pressure and chronic stress were among the strongest risk factors, along with lower education levels and exposure to air pollution. These findings underscore that preventing sudden cardiac arrest isn’t just about personal habits: it’s also about the environments we live in and the policies that shape them. Cleaner air, better education and easier access to nutritious food could all play a role.</p> <p>Sudden cardiac arrest is not entirely random. Many of the contributing factors are within our control. Managing stress, staying active, maintaining a healthy weight, getting quality sleep – and yes, perhaps enjoying the occasional glass of white wine – can all help. But the real power lies in stacking small, healthy choices over time. Prevention is rarely about a single change; it’s about the cumulative effect of many.</p> <p>And in case you were wondering: Keynes suffered a series of heart attacks in 1946, beginning during negotiations for the <a href="https://history.blog.gov.uk/2020/12/07/whats-the-context-signing-the-anglo-american-financial-agreement-6-december-1945/">Anglo-American loan</a> in Savannah, Georgia. He described the process as “absolute hell”. A few weeks after returning to his farmhouse in Firle, East Sussex, he died of a heart attack at the age of 62.</p> <p>Maybe he was right about drinking more champagne after all.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/255708/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/david-c-gaze-312661">David C. Gaze</a>, Senior Lecturer in Chemical Pathology, <a href="https://theconversation.com/institutions/university-of-westminster-916">University of Westminster</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/can-drinking-champagne-reduce-your-risk-of-sudden-cardiac-arrest-heres-why-its-only-a-small-part-of-the-story-255708">original article</a>.</em></p> <p><em>Image: Shutterstock</em></p> </div>

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A new COVID variant is on the rise: what you need to know

<div class="theconversation-article-body"> <p>More than five years since COVID was <a href="https://www.who.int/europe/emergencies/situations/covid-19">declared a pandemic</a>, we’re still facing the regular emergence of new variants of the virus, SARS-CoV-2.</p> <p>The latest variant on the rise is LP.8.1. It’s <a href="https://www.health.gov.au/resources/collections/australian-respiratory-surveillance-reports-2025">increasing in Australia</a>, making up close to <a href="https://www.health.nsw.gov.au/Infectious/covid-19/Documents/respiratory-surveillance-20250322.pdf">one in five COVID cases</a> in New South Wales.</p> <p>Elsewhere it’s become even more dominant, comprising at least three in five cases <a href="https://inews.co.uk/news/health/lp-covid-variant-cases-future-waves-3598768">in the United Kingdom</a>, for example.</p> <p>So what is LP.8.1? And is it cause for concern? Let’s look at what we know so far.</p> <h2>An offshoot of Omicron</h2> <p>LP.8.1 was first <a href="https://www.who.int/publications/m/item/risk-evaluation-for-sars-cov-2-variant-under-monitoring-lp81">detected in July 2024</a>. It’s a descendant of Omicron, specifically of KP.1.1.3, which is descended from <a href="https://theconversation.com/the-emergence-of-jn-1-is-an-evolutionary-step-change-in-the-covid-pandemic-why-is-this-significant-220285">JN.1</a>, a subvariant that caused large waves of COVID infections around the world in late 2023 and early 2024.</p> <p>The <a href="https://www.who.int/activities/tracking-SARS-CoV-2-variants">World Health Organization</a> (WHO) designated LP.8.1 as a <a href="https://www.who.int/publications/m/item/risk-evaluation-for-sars-cov-2-variant-under-monitoring-lp81">variant under monitoring</a> in January. This was in response to its significant growth globally, and reflects that it has genetic changes which may allow the virus to spread more easily and pose a greater risk to human health.</p> <p>Specifically, LP.8.1 has mutations at six locations in its spike protein, the protein which allows SARS-CoV-2 to attach to our cells. One of these mutations, V445R, is thought to allow this variant to spread more easily relative to other circulating variants. V445R has been shown to increase binding to human lung cells in <a href="https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(25)00015-5/fulltext">laboratory studies</a>.</p> <figure class="align-center "><img src="https://images.theconversation.com/files/658901/original/file-20250401-56-eywcgb.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/658901/original/file-20250401-56-eywcgb.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=468&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/658901/original/file-20250401-56-eywcgb.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=468&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/658901/original/file-20250401-56-eywcgb.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=468&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/658901/original/file-20250401-56-eywcgb.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=588&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/658901/original/file-20250401-56-eywcgb.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=588&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/658901/original/file-20250401-56-eywcgb.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=588&amp;fit=crop&amp;dpr=3 2262w" alt="A chart showing the distribution of different COVID variants in different colours." /><figcaption><span class="caption">The proportion of COVID cases caused by LP.8.1 has been rising in New South Wales.</span> <span class="attribution"><a class="source" href="https://www.health.nsw.gov.au/Infectious/covid-19/Documents/respiratory-surveillance-20250322.pdf">NSW Health</a></span></figcaption></figure> <p>Notably, the symptoms of LP.8.1 don’t appear <a href="https://www.who.int/publications/m/item/risk-evaluation-for-sars-cov-2-variant-under-monitoring-lp81">to be any more severe</a> than other circulating strains. And the WHO has evaluated the additional public health risk LP.8.1 poses at a global level to be low. What’s more, LP.8.1 remains a variant under monitoring, rather than a variant of interest or a variant of concern.</p> <p>In other words, these changes to the virus with LP.8.1 are small, and not likely to make a big difference to the trajectory of the pandemic.</p> <h2>That doesn’t mean cases won’t rise</h2> <p>COVID as a whole is still a major national and international health concern. So far this year there have been close to <a href="https://www.health.gov.au/resources/collections/australian-respiratory-surveillance-reports-2025">45,000 new cases recorded in Australia</a>, while around <a href="https://covidlive.com.au/report/daily-hospitalised/aus">260 people are currently in hospital</a> with the virus.</p> <p>Because many people are no longer testing or reporting their infections, the real number of cases is probably far higher.</p> <p>In <a href="https://www.health.gov.au/resources/collections/australian-respiratory-surveillance-reports-2025">Australia</a>, LP.8.1 has become the <a href="https://www.health.nsw.gov.au/Infectious/covid-19/Documents/respiratory-surveillance-20250322.pdf">third most dominant strain in NSW</a> (behind <a href="https://theconversation.com/xec-is-now-in-australia-heres-what-we-know-about-this-hybrid-covid-variant-239292">XEC</a> and KP.3).</p> <p>It <a href="https://www.health.nsw.gov.au/Infectious/covid-19/Documents/respiratory-surveillance-20250322.pdf">has been growing</a> over the past couple of months and this trend looks set to continue.</p> <p>This is not to say it’s not growing similarly in other states and territories, however NSW Health publishes <a href="https://www.health.nsw.gov.au/Infectious/covid-19/Pages/reports.aspx">weekly respiratory surveillance</a> with a breakdown of different COVID variants in the state.</p> <p>Sequences of LP.8.1 in the <a href="https://gisaid.org/">GISAID database</a>, used to track the prevalence of variants around the world, increased from <a href="https://www.who.int/publications/m/item/risk-evaluation-for-sars-cov-2-variant-under-monitoring-lp81">around 3%</a> at the end of 2024 to 38% of global sequences as of <a href="https://x.com/Mike_Honey_/status/1905816340331728914">mid March</a>.</p> <p>In some countries it’s climbed particularly high. In the United States LP.8.1 is responsible for <a href="https://covid.cdc.gov/covid-data-tracker/#variant-proportions">55% of cases</a>. In <a href="https://inews.co.uk/news/health/lp-covid-variant-cases-future-waves-3598768">the UK</a>, where LP.8.1 is making up at least 60% of cases, scientists fear <a href="https://inews.co.uk/news/science/new-covid-wave-cases-hospitalisations-3611459?srsltid=AfmBOor_V7pQrPMPhUYQA2KCZgRfsI_CpxTwIRiHDFJHIJhq2kbAmD42">it may be driving a new wave</a>.</p> <h2>Will COVID vaccines work against LP.8.1?</h2> <p>Current COVID vaccines, including the most recently available <a href="https://theconversation.com/new-covid-vaccines-may-be-coming-to-australia-heres-what-to-know-about-the-jn-1-shots-237652">JN.1 shots</a>, are still expected to <a href="https://www.who.int/publications/m/item/risk-evaluation-for-sars-cov-2-variant-under-monitoring-lp81">offer good protection</a> against symptomatic and severe disease with LP.8.1.</p> <p>Nonetheless, due to its designation as a variant under monitoring, WHO member countries will continue to study the behaviour <a href="https://www.who.int/publications/m/item/risk-evaluation-for-sars-cov-2-variant-under-monitoring-lp81">of the LP.8.1 variant</a>, including any potential capacity to evade our immunity.</p> <p>While there’s no cause for panic due to LP.8.1 variant at this stage, COVID can still be a severe disease for some. Continued vigilance and vaccination, particularly <a href="https://www.health.gov.au/our-work/covid-19-vaccines/getting-your-vaccination">for medically vulnerable groups</a>, is essential in minimising the impact of the disease.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/253237/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/thomas-jeffries-1511629">Thomas Jeffries</a>, Senior Lecturer in Microbiology, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/a-new-covid-variant-is-on-the-rise-heres-what-to-know-about-lp-8-1-253237">original article</a>.</em></p> <p><em>Image: Shutterstock</em></p> </div>

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Refinancing your home later in life – what you need to know

<p>There are many reasons why you may look to refinance your home. The obvious one is to lower mortgage repayments with a better rate. However, other reasons people refinance later in life include:</p> <ul> <li>unlocking equity to invest</li> <li>paying down other debts</li> <li>buying a holiday home</li> <li>funding extended travel</li> <li>launching a new business</li> <li>supporting children with a property deposit</li> </ul> <p>Regardless of why you want to refinance, the points below will help you navigate your options.</p> <p><strong>Changing lenders</strong></p> <p>It may have been a while since you last revisited your mortgage, meaning you may not be aware of current lending options and traps.</p> <p>A common trick lenders use is the so-called “headline rate” to grab your attention. However, this interest rate is typically not what you end up paying. It may only be an introductory rate for the first few months, or hefty fees attached may wipe out any savings.</p> <p>Banks aren’t the only ones offering loans nowadays. Registered non-bank lenders, fintechs and online lenders can refinance your mortgage and provide other credit services the same as any bank; they just don’t take cash deposits. Alternatively, you could explore credit unions and mutual societies.</p> <p>Also consider any shareholder benefits you may have. Most banks have done away with them now but may still honour pre-existing ones. If you change lenders, you could lose this entitlement – permanently.</p> <p><strong>Reverse mortgages</strong></p> <p>Generally, only available to people aged 60-plus, a reverse mortgage effectively allows you to unlock equity in your home without you needing to make immediate repayments.</p> <p>However, they often have strict conditions including:</p> <ul> <li>minimum borrowing amounts</li> <li>maximum borrowing ratios</li> <li>higher interest rates than standard mortgages</li> </ul> <p>Crucially, the interest accrues over time and is repaid when you sell, move or pass away. As such, your debt liability grows over time – potentially impacting your future living arrangements and how much is left for beneficiaries in your will.  The Govt has the “loan equity scheme” as another option to lenders.  I just want to highlight the need to be careful with reverse mortgages.</p> <p><strong>Changing homes</strong></p> <p>Rather than selling, downsizing could involve making an investment property your primary residence and then renting out your existing home.</p> <p>This approach may require you to refinance both loans simultaneously. There will also be tax considerations to work through – including Capital Gains Tax liabilities when you do sell, negative gearing, depreciation, and changes to your income tax.</p> <p>Then there are the lifestyle factors to weigh up, especially if you are moving to a different area:</p> <ul> <li>living expenses</li> <li>insurance and travel costs</li> <li>access to healthcare</li> <li>rental income</li> <li>property management expenses</li> </ul> <p>Remember that if you have a Self Managed Super Fund (SMSF), it CANNOT own any property that you directly use yourself, including your home.</p> <p><strong>Becoming Bank of Mum and Dad</strong></p> <p>Refinancing can unlock equity to support adult children with their first property deposit. However, it isn’t without its risks.</p> <p>Ask yourself honestly:</p> <ul> <li>Will this be a gift or loan?</li> <li>If a loan, under what terms? Will interest be applied? How and when will repayments be made? What if they default?</li> <li>What happens if their relationship breaks down, will you get your money back?</li> <li>How does going without that money affect your retirement?</li> <li>Do you have alternative assets to support you if your circumstances change?</li> <li>How does this affect inheritances or deposit contributions to your other children?</li> <li>Can you assist them another way without using your home equity?</li> </ul> <p>Draw up a written agreement outlining all conditions and scenarios to avoid disagreements in the future.</p> <p><strong>Pension impacts</strong></p> <p>Don’t overlook how refinancing your home could impact your pension. While your home is exempt from the means test, any income or assets you generate from unlocking equity is not.</p> <p>You could inadvertently see your pension amount reduced or your eligibility voided altogether. This would come as a nasty shock if you haven’t pre-budgeted for such a change!</p> <p><strong>Getting advice</strong></p> <p>To ensure you get the best bang for your buck when refinancing, be sure to enlist the help of a good:</p> <ul> <li>mortgage broker to source the best loans for your circumstances</li> <li>insurance broker to ensure your cover is right sized for your needs, risk and budget</li> <li>accountant to work through any tax implications</li> <li>estate planner to manage any changes</li> <li>financial adviser to keep your investments and financial strategy working for you</li> </ul> <p>Ultimately, decisions – including about refinancing – are only as good the information you have at hand. So, make sure you have all the relevant facts before signing on the dotted line.</p> <p><em><span style="line-height: 18.4px; font-family: Calibri, sans-serif; color: #242424;">Helen Baker is a licensed Australian financial adviser and author of the new book, Money For Life: How to build financial security from firm foundations (Major Street Publishing $32.99). Helen is among the 1% of financial planners who hold a master’s degree in the field. Proceeds from book sales are donated to charities supporting disadvantaged women and children. Find out more at </span><a style="color: #467886;" title="http://www.onyourowntwofeet.com.au/" href="http://www.onyourowntwofeet.com.au/"><span style="line-height: 18.4px; font-family: Calibri, sans-serif;">www.onyourowntwofeet.com.au</span></a></em></p> <p><em><span style="line-height: 18.4px; font-family: Calibri, sans-serif; color: #242424;">Disclaimer: The information in this article is of a general nature only and does not constitute personal financial or product advice. Any opinions or views expressed are those of the authors and do not represent those of people, institutions or organisations the owner may be associated with in a professional or personal capacity unless explicitly stated. Helen Baker is an authorised representative of BPW Partners Pty Ltd AFSL 548754.</span></em></p>

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How long will you live? New evidence says it’s much more about your choices than your genes

<div class="theconversation-article-body"> <p>One of the most enduring questions humans have is how long we’re going to live. With this comes the question of how much of our lifespan is shaped by our environment and choices, and how much is predetermined by our genes.</p> <p>A study recently published in the prestigious journal <a href="https://www.nature.com/articles/s41591-024-03483-9">Nature Medicine</a> has attempted for the first time to quantify the relative contributions of our environment and lifestyle versus our genetics in how we age and how long we live.</p> <p>The findings were striking, suggesting our environment and lifestyle play a much greater role than our genes in determining our longevity.</p> <h2>What the researchers did</h2> <p>This study used data from the <a href="https://www.ukbiobank.ac.uk/">UK Biobank</a>, a large database in the United Kingdom that contains in-depth health and lifestyle data from roughly 500,000 people. The data available include genetic information, medical records, imaging and information about lifestyle.</p> <p>A separate part of the study used data from a subset of more than 45,000 participants whose blood samples underwent something called “<a href="https://www.nature.com/articles/s41576-022-00511-7">proteomic profiling</a>”.</p> <p>Proteomic profiling is a relatively new technique that looks at how proteins in the body change over time to identify a person’s age at a molecular level. By using this method researchers were able to estimate how quickly an individual’s body was actually ageing. This is called their biological age, as opposed to their chronological age (or years lived).</p> <p>The researchers assessed 164 environmental exposures as well as participants’ genetic markers for disease. Environmental exposures included lifestyle choices (for example, smoking, physical activity), social factors (for example, living conditions, household income, employment status) and early life factors, such as body weight in childhood.</p> <p>They then looked for associations between genetics and environment and 22 major age-related diseases (such as coronary artery disease and type 2 diabetes), mortality and biological ageing (as determined by the proteomic profiling).</p> <p>These analyses allowed the researchers to estimate the relative contributions of environmental factors and genetics to ageing and dying prematurely.</p> <h2>What did they find?</h2> <p>When it came to disease-related mortality, as we would expect, age and sex explained a significant amount (about half) of the variation in how long people lived. The key finding, however, was environmental factors collectively accounted for around 17% of the variation in lifespan, while genetic factors contributed less than 2%.</p> <p>This finding comes down very clearly on the nurture side in the “nature versus nurture” debate. It suggests environmental factors influence health and longevity to a far greater extent than genetics.</p> <p>Not unexpectedly, the study showed a different mix of environmental and genetic influences for different diseases. Environmental factors had the greatest impact on lung, heart and liver disease, while genetics played the biggest role in determining a person’s risk of breast, ovarian and prostate cancers, and dementia.</p> <p>The environmental factors that had the most influence on earlier death and biological ageing included smoking, socioeconomic status, physical activity levels and living conditions.</p> <p>Interestingly, being taller at age ten was found to be associated with a shorter lifespan. Although this may seem surprising, and the reasons are not entirely clear, this aligns with <a href="https://www.sciencedaily.com/releases/2014/05/140509110756.htm">previous research</a> finding taller people are more likely to die earlier.</p> <p>Carrying more weight at age ten and maternal smoking (if your mother smoked in late pregnancy or when you were a newborn) were also found to shorten lifespan.</p> <p>Probably the most surprising finding in this study was a lack of association between diet and markers of biological ageing, as determined by the proteomic profiling. This flies in the face of the extensive body of evidence showing the crucial role of <a href="https://www.nature.com/articles/s43016-023-00868-w">dietary patterns</a> in chronic disease risk and longevity.</p> <p>But there are a number of plausible explanations for this. The first could be a lack of statistical power in the part of the study looking at biological ageing. That is, the number of people studied may have been too small to allow the researchers to see the true impact of diet on ageing.</p> <p>Second, the dietary data in this study, which was self-reported and only measured at one time point, is likely to have been of relatively poor quality, limiting the researchers’ ability to see associations. And third, as the relationship between diet and longevity is likely to be complex, disentangling dietary effects from other lifestyle factors may be difficult.</p> <p>So despite this finding, it’s still safe to say the food we eat is one of the most important pillars of health and longevity.</p> <h2>What other limitations do we need to consider?</h2> <p>Key exposures (such as diet) in this study were only measured at a single point in time, and not tracked over time, introducing potential errors into the results.</p> <p>Also, as this was an observational study, we can’t assume associations found represent causal relationships. For example, just because living with a partner correlated with a longer lifespan, it doesn’t mean this caused a person to live longer. There may be other factors which explain this association.</p> <p>Finally, it’s possible this study may have underestimated the role of genetics in longevity. It’s important to recognise genetics and environment don’t operate in isolation. Rather, health outcomes are shaped by their interplay, and this study may not have fully captured the complexity of these interactions.</p> <h2>The future is (largely) in your hands</h2> <p>It’s worth noting there were a number of factors such as household income, home ownership and employment status associated with diseases of ageing in this study that are not necessarily within a person’s control. This highlights the crucial role of addressing the social determinants of health to ensure everyone has the best possible chance of living a long and healthy life.</p> <p>At the same time, the results offer an empowering message that longevity is largely shaped by the choices we make. This is great news, unless you have good genes and were hoping they would do the heavy lifting.</p> <p>Ultimately, the results of this study reinforce the notion that while we may inherit certain genetic risks, how we eat, move and engage with the world seems to be more important in determining how healthy we are and how long we live.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/251054/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/hassan-vally-202904"><em>Hassan Vally</em></a><em>, Associate Professor, Epidemiology, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/how-long-will-you-live-new-evidence-says-its-much-more-about-your-choices-than-your-genes-251054">original article</a>.</em></p> <p><em>Image: Shutterstock</em></p> </div>

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Farewell, Your Majesty: Major change coming to Aussie fiver

<p>The Reserve Bank of Australia (RBA) has announced a new theme for the Aussie fiver, designed to honour the “enduring emotional, spiritual and physical connection of First Nations peoples to Country”. </p> <p>“This inspiring theme will guide the creation of an artwork that will feature on the redesigned banknote,” said Michelle McPhee, RBA’s Assistant Governor of Business Services. The selection of this theme followed an extensive national campaign, receiving over 2,100 theme nominations from the public.</p> <p>For the first time since 1992, the $5 note will not feature the late Queen Elizabeth II, who had appeared on the denomination for more than 30 years. Breaking with tradition, the RBA confirmed that the redesigned note would not bear a portrait of any monarch, meaning King Charles will also be absent from the new design. However, the reverse side of the note will continue to depict the Australian Parliament building.</p> <p>Since the 1960s, the $5 banknote has undergone four major redesigns, with the most recent update in 2016. When Queen Elizabeth II’s portrait was first introduced in 1992, it replaced humanitarian Caroline Chisholm, a decision that was met with criticism at the time. The RBA defended its choice, citing Australia’s status as a constitutional monarchy and the tradition of including the reigning monarch on at least one banknote.</p> <p>The new banknote is expected to take several years to be designed, printed and circulated. The process of selecting an artist for the design is currently underway, with more details to be revealed in the coming months. The development of the note will also involve incorporating advanced security features to prevent counterfeiting.</p> <p>While the new design is in progress, the existing $5 note will continue to be issued. Meanwhile, Australian coins, which are produced by the Royal Australian Mint, will maintain the tradition of featuring the monarch.</p> <p><em>Images: RBA</em></p>

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An artificial heart may save your life. But it can also change you in surprising ways

<div class="theconversation-article-body"> <p>This week, <a href="https://www.theguardian.com/australia-news/2025/mar/12/australian-man-survives-100-days-with-artificial-heart-in-world-first-success">doctors announced</a> that an Australian man with severe heart failure had left hospital with an artificial heart that had kept him alive until he could receive a donor heart.</p> <p>The patient, a man from New South Wales in his 40s, was not the world’s first person to receive this type of artificial heart. However, he is <a href="https://www.svhs.org.au/newsroom/news/australia-first-total-artificial-heart-implant">said to be</a> the <a href="https://www.monash.edu/news/articles/australias-first-durable-total-artificial-heart-implant-announced-as-a-success">first with one to be discharged from hospital</a> to wait for a heart transplant, which he’s since had.</p> <blockquote class="twitter-tweet"> <p dir="ltr" lang="en">WARNING: GRAPHIC CONTENT<br />This machine has enabled an Australian man with severe heart failure to be the first person in the world to leave hospital with an artificial heart transplant <a href="https://t.co/6S12mINwBm">pic.twitter.com/6S12mINwBm</a></p> <p>— Reuters (@Reuters) <a href="https://twitter.com/Reuters/status/1899862954155126824?ref_src=twsrc%5Etfw">March 12, 2025</a></p></blockquote> <p>I am a philosopher and bioethicist. I <a href="https://bridges.monash.edu/articles/thesis/Phenomenology_and_Artificial_Hearts/22312204">completed my PhD</a> on artificial hearts – particularly how these implants can change people’s lives in profound ways.</p> <p>Here’s what patients and their families need to consider.</p> <h2>What is an artificial heart?</h2> <p>Artificial hearts began to be developed in the 1960s, sponsored by the United States government and funded in a similar way to space and military programs.</p> <p>In 1982, a man named <a href="https://www.historynewsnetwork.org/article/hero-or-victim-the-25th-anniversary-of-barney-clar">Barney Clark</a> received the Jarvik-7 total artificial heart. Doctors removed his failing biological heart and replaced it with a plastic and metal device to circulate blood to his lungs and around his body. He lived for 112 days before dying from multi-organ failure. He never left hospital.</p> <p>In the 1980s and 1990s, medical device companies began to develop alternatives to total artificial hearts. These partial artificial hearts, known as ventricular assist devices, help out a biological heart by supplementing or replacing one of its two pumping chambers.</p> <p>These are more straightforward and versatile than total artificial hearts, and can be used for earlier stages of heart failure.</p> <p>Not all artificial hearts generate a pulse.</p> <p>Artificial hearts with a pulse generally mimic the biological heart. They pump blood in the same way the heart beats, by filling with blood and squeezing to circulate blood in waves or pulses.</p> <p>But some devices continuously push blood around the body instead of pulsing. So with these continuous-flow devices neither the patient nor their health team can <a href="https://link.springer.com/article/10.1007/s11906-017-0782-6">detect a pulse</a>.</p> <p><a href="https://linkinghub.elsevier.com/retrieve/pii/S0003497524008749">In the US between 2014 and 2024</a>, almost 30,000 patients received continuous-flow ventricular assist devices. In the same period, more than 310 total artificial hearts were implanted.</p> <p>The total artificial hearts <a href="https://www.syncardia.com/syncardia-total-artificial-heart-stah.html">commercially</a> <a href="https://www.carmatsa.com/en/our_product/">available</a> today are licensed exclusively as bridging therapies – to keep people alive until a donor heart becomes available – rather than permanent implants.</p> <h2>How about the device making news this week?</h2> <p>The device in the news – the <a href="https://www.monash.edu/news/articles/australias-first-durable-total-artificial-heart-implant-announced-as-a-success">BiVACOR Total Artificial Heart</a> – was developed by a US-Australian collaboration. This device is innovative, mainly because it is the first continuous-flow device designed to replace the whole heart. Designers are also aiming for it to be the first total artificial heart suitable as a permanent transplant (known as destination therapy).</p> <p>A reliable, durable and responsive total artificial heart is, <a href="https://www.abc.net.au/news/2025-03-12/sydney-hospital-artificial-heart-implant-operation-success/105036154">in the words</a> of Paul Jansz, the surgeon who implanted the device, “the Holy Grail”.</p> <p>The BiVACOR’s clinical success so far gives us reason to be optimistic about an alternative to scarce donor hearts for responding to severe heart failure.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;rect=12%2C12%2C8231%2C5475&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;rect=12%2C12%2C8231%2C5475&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=400&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=400&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=400&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=503&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=503&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/655013/original/file-20250313-56-4w24qy.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=503&amp;fit=crop&amp;dpr=3 2262w" alt="Hand holding the BiVACOR artificial heart" /></a><figcaption><span class="caption">This device is designed to replace the whole heart, and for now, is licensed as a temporary implant, ahead of a heart transplant.</span> <span class="attribution"><span class="source">BiVACOR TIQ</span></span></figcaption></figure> <h2>Transplants can change lives</h2> <p>However, patients do not just resume their old lives when they leave hospital with an artificial heart.</p> <p>While the pumping component is inside their chest, there are also <a href="https://www.instagram.com/p/BHW0ATvgFDu/?hl=en">external components</a> to manage and monitor. A thick tube perforates their abdomen and connects to an external controller unit and power supply, which the patient carries around in a bag. Controllers must be closely monitored, and batteries must be regularly recharged.</p> <p>My research showed that even a perfectly safe and reliable total artificial heart could transform patients’ lives in at least three major areas.</p> <p><strong>1. Is it part of me? Do I trust it?</strong></p> <p>Patients must <a href="https://www.tandfonline.com/doi/10.1080/09638288.2020.1717648">trust, tolerate and receive sensory feedback about how the device is working</a> for it to feel like part of them. In the case of an artificial heart, this might mean the device feels responsive to exercise and the body’s needs.</p> <p>But it may be difficult for artificial hearts to meet these criteria, especially for devices that do not generate a pulse.</p> <p>Patients may also question whether their heart is located in their body, or in the controller unit. They may wonder if they even have a heart, particularly if they can’t feel a pulse.</p> <p><strong>2. Beeps and alarms</strong></p> <p>An artificial heart also changes how patients live their lives and <a href="https://link.springer.com/article/10.1007/s11097-024-10050-7">navigate the world</a>.</p> <p>Interruptions from <a href="https://journals.sagepub.com/doi/10.1177/1049732317700853">loud device alarms</a> distract patients from their normal activities. And patients must switch between mains power and batteries when they <a href="https://linkinghub.elsevier.com/retrieve/pii/S0147956311002718">wake in the night and need to visit the toilet</a>.</p> <p><strong>3. Marking time</strong></p> <p>Our hearts may be our <a href="https://www.frontiersin.org/journals/neurorobotics/articles/10.3389/fnbot.2014.00015/full">natural</a> <a href="https://linkinghub.elsevier.com/retrieve/pii/S0301051111000032">metronomes</a>, marking time. So removing someone’s heart rhythm can confuse their sense of time.</p> <p>The need for batteries to be recharged periodically can also reshape patients’ days.</p> <p>Waiting around for a transplant heart, or the latest software update, may change patients’ perspectives on what months and years feel like.</p> <h2>We need to give patients the whole picture</h2> <p>Artificial hearts are remarkable devices with great promise. But patients and families also deserve to know how these extraordinary treatments might change how they feel about themselves and the world.</p> <p>They need to know this before they sign up for them. Artificial hearts don’t just save lives – they also change them.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/252165/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/pat-mcconville-2344684">Pat McConville</a>, Lecturer in Ethics, Law, and Professionalism, School of Medicine, <a href="https://theconversation.com/institutions/deakin-university-757">Deakin University</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/an-artificial-heart-may-save-your-life-but-it-can-also-change-you-in-surprising-ways-252165">original article</a>.</em></p> <p><em>Image: Shutterstock</em></p> </div>

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"Get under your desks!": Incredible moment tornado strikes TV studio during live broadcast

<p>Dramatic footage captured the moment an EF-2 tornado slammed into the FOX 35 television studio in Lake Mary, Florida, on Monday morning. The on-air meteorologist, Brooks Garner, swiftly ordered his colleagues to take cover as the storm bore down on them in real time.</p> <p>Garner, a seasoned meteorologist for FOX 35, remained remarkably composed as the tornado, with winds reaching up to 200km/h, moved directly toward the station. The storm was first spotted on the studio’s outdoor camera, showing it charging across Interstate 4 before closing in on the journalists inside.</p> <p>Once the wind and heavy rain obscured visibility, leaving only swirling debris on the cameras, Garner issued an urgent warning.</p> <p>“We got debris? Okay. Take shelter! Everybody in the FOX 35 building, get to your safe space. Under your desk if you’re not in a designated area. We’re catching debris right now on the roof,” he said during the live broadcast.</p> <p>As debris pounded the building, Garner repeated his instructions with greater urgency. “Seek shelter immediately! Get under your desks, guys, anchors. Under the desks. Producers, everybody get under the desks.”</p> <p>After the storm passed, Garner quickly shifted his focus back to the safety of viewers still in its path.</p> <p>“Get to the ground level, an interior room, away from the windows,” he urged. “This is a very serious situation. This is a real, live tornado. It just hit our station.”</p> <p>According to the National Weather Service (NWS), the tornado formed at 9:35am. near the southeastern edge of Wekiwa Springs State Park. The twister carved a destructive path through residential areas in Longwood, damaging homes, shattering windows and tearing off roofs.</p> <p>Officials later confirmed that at least one home collapsed. Additionally, a semi-truck was overturned with its driver and his dog inside. Fortunately, no fatalities were reported, though the region suffered widespread power outages and fallen trees. Even inside the fortified FOX 35 building, lights flickered as the tornado struck.</p> <p>Emergency crews have since been deployed to assess the damage and assist affected residents. Authorities urge locals to remain alert, as severe weather conditions persist in the area.</p> <p><em>Image: FOX 35</em></p>

Travel Trouble

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Your 2025 Oscars wrap!

<div class="theconversation-article-body">In a year with few surprises in the awards categories, there was also a dearth of surprises on the red carpet. The sartorial themes included sparkling metallics, coloured menswear and bows, bows and more bows.</p> <p>Metallic gowns that resemble the Oscar statue are a familiar sight at the Academy Awards and this year was no different. Some of the standouts included best actress nominee Demi Moore in a magnificently glittering silver Armani Privé gown, Selena Gomez in custom Ralph Lauren encrusted with 16,000 individual blush-toned jewel teardrops, and Emma Stone in a minimalist Louis Vuitton sheath covered in iridescent fish scales.</p> <p>In the menswear category, tuxedos reign supreme. This year was notable only for the diversity of colours in which these suits came.</p> <p>Best actor nominee Timothée Chalamet lived up to his reputation for monochrome, richly hued ensembles in a custom butter yellow leather suit by Givenchy, paired with a matching silk shirt and delicate neck brooch in place of a tie. His best actor nominated compatriot, Colman Domingo (one of the best dressed men in Hollywood) was pristine in a double-breasted red silk jacket with black lapels, black trousers and matching red shirt by Valentino, similarly eschewing a tie in favour of a fine gold brooch. Andrew Garfield wore louche chocolate brown Gucci and Jeremy Strong wore a suit by Loro Piana in an unusual tone of olive green.</p> <p>Bows of varying size and stature were perhaps the strongest theme of the night.</p> <p>Best actress winner Mikey Madison in black and pink Dior, best supporting actress nominee Felicity Jones in shimmering liquid silver Armani, Elle Fanning in white and black Givenchy and Lupita Nyong’o in white Chanel were all adorned with bows at their waists.</p> <p>The most remarkable bow of the night though was best actress nominee Cynthia Erivo in a structured deep emerald-green velvet Louis Vuitton gown, the broad, wing-like sleeves of which were crafted as a bow.</p> <p>Notable mentions must also go to those attendees who do not fit neatly into any thematic category. Best supporting actress nominee Ariana Grande wore a meticulously crafted pale pink Schiaparelli confection and Lisa (of Blackpink and now White Lotus fame) perfected a feminine take on masculine suiting in a tuxedo dress by Markgong.</p> <p>The only real surprise was the lack of political statements on display. Unlike recent years, when pins and ribbons in support of Ukraine and Palestine were widely worn, this year only Guy Pearce was spotted wearing a Free Palestine pin, Conclave writer Peter Straughan wore a Ukrainian flag pin and Kayo Shekoni had “free Congo” emblazoned on the sole of her high heels.</p> <p>– <em>Harriette Richards</em></p> <h2>The best picture: <em>Anora</em></h2> <p>And the best picture Oscar goes to … <em>Anora</em> – the film that was favoured to win, so no surprises here.</p> <p>Though he had been working for more than a decade at the time, writer-director-editor Sean Baker came onto the independent movie scene with a bang with 2015’s Tangerine, a gimmicky film that was mainly celebrated for being shot on an iPhone. Why this would be celebrated is anyone’s guess. I suspect it’s because of the “I could do it too” factor – something the average person certainly couldn’t say if we’re talking 35mm celluloid.</p> <p>Since then, Baker’s films have relished in embracing the digital, neon world, but always in a kind of sentimental and shallow, rather than critical, register. None of his films are awful – and maybe that’s saying something in this day and age. Anora also is not awful, but it’s not particularly memorable either.</p> <figure><iframe src="https://www.youtube.com/embed/z20wJkdKz98?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>Anora follows a run of the mill American dream-type story about a hard-working stripper who seems to strike fairytale gold when a young, fun Russian oligarch falls in love with her. Only the dream turns out to be more of a nightmare (kind of) when things don’t quite work out and the film ends with the titular character once again independent and free.</p> <p>The idea of undercutting the fairytale setup of the typical rom-com is not at all original, and the film strikes me as even more schmaltzy in its rejection of the fairytale dream than if it had embraced it and played like a tween-focused Nickelodeon film (it’s about as poignant as this).</p> <p>The film’s cardinal sin, however – and it’s certainly not alone in this – is its critical overlength. Each of the film’s sections could have had some 20 minutes cut and we would have had an enjoyably tight romp at 80 minutes. Instead, Anora drags on, swept up in its imagining of its own profundity – at times pretentious, but mainly tedious.</p> <p>– <em>Ari Mattes</em></p> <h2>Not the year to stick a neck out</h2> <p>The speeches this year were conspicuously meek. No announcer majorly insulted anyone else. No winner assaulted anyone else. Even the James Bond retrospective lacked energy. What’s going on in Hollywood?</p> <p>There are clues that help explain this curious flatness. Host Conan O’Brien mentioned the pressure of “divisive politics” while reflecting on California’s wildfires. Several winners spoke about the importance of shared experience, of what unites us, of film as a medium that brings people together, a force for “<a href="https://pitchfork.com/news/oscars-2025-clement-ducol-and-camille-win-best-original-song-for-el-mal-from-emilia-perez/">good and progress in the world</a>” and “<a href="https://www.townandcountrymag.com/leisure/arts-and-culture/a63981052/adrien-brody-best-actor-oscars-2025-speech-transcript/">a reminder not to let hate go unchecked</a>”.</p> <p>The directors of No Other Land, receiving their Oscar for best documentary, shared the one clear critical voice. Palestinian Basel Adra wished his newborn daughter a life without the fear that governs daily life in his homeland. Israeli co-director Yuval Abraham agreed: “There is another way. It’s not too late for life and for the living. There is no other way.”</p> <p>However, that was the only moment people at the Oscars seemed willing to confront the political elephant in the room.</p> <p>Anora director Sean Baker used his last (of four!) acceptance speeches to compel more people to help keep cinema doors open. He made his point passionately: this was the best way to sustain an industry that could continue to make brilliant movies. That said, the most emotive speeches of past Oscars events went much further than just commenting on the bread and butter concerns of the film industry.</p> <p>This year, there were more clues in what people did not say. There were feints at Russian dictators – but nobody mentioned the war in Ukraine. There was no discussion of a certain election result, nor of filmmakers’ fears that Washington is now in the control of a governing faction that loathes them. Most revealing of all: nobody raised a peep about the President or his friends.</p> <p>Hollywood’s collective discipline was on show tonight – and 2025 is not the year to stick a neck out.</p> <p>– <em>Tom Clark</em></p> <h2>A banner year for independent film</h2> <p>Independent films were the big winners for this year’s Oscars. While many of the technical awards went to the big budget films, such as Wicked (the US$145 million film won costume design and production design) and Dune: Part 2 (made at a budget of US$190 million, and winning sound and visual effects), the night’s major awards went to small productions.</p> <p>While the definitions of “independence” and “studio” films don’t exist in a neat binary when it comes to production and global distribution, we can distinguish between film juggernauts and smaller films.</p> <p>Three independent films won significant awards that are of note. Latvian film Flow was the first independent film to win best animated feature, up against major films Inside Out 2 (Pixar Films) and The Wild Robot (DreamWorks).</p> <p>The film follows a cat, a dog, a capybara, a secretary bird and a ring-tailed lemur navigating a post-apocalyptic world with rising sea levels. The film also only used free and open-source software Blender and mostly used sounds from real world counterparts of the various characters. It was made for a budget of just €3.5 million (A$5.9 million).</p> <p>The best documentary film nominees were dominated by independent films. Notably, the winner No Other Land has sadly been unable to find a distributor to release the film in the United States. (It is available for streaming in Australia on DocPlay, and in select cinemas.) The film was only eligible because the Film Lincoln Centre in New York facilitated a one-week, qualifying theatrical run.</p> <p>The night’s top glories went to Anora, made on a budget of just US$6 million (A$9.7 million) and taking home the awards for best film, director, actress, screenplay and editing.</p> <p>In his acceptance speech for best director, Sean Baker spoke of the importance of films getting a theatrical release. Films, he said, are about humanity – and that is best experienced in watching a film with other people.</p> <figure><iframe src="https://www.youtube.com/embed/ozpV7LyJ4YQ?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>During awards season, Baker has often spoken about the importance of small budget films in the expression of core human experiences.</p> <p>The final message of the night went to Baker when he thanked the Academy for recognising a truly independent film: “Long live independent film!”</p> <p>Indeed, independent films ruled this year’s Oscars.</p> <p>– <em>Stuart Richards</em></p> <h2>Best actor and actress</h2> <p>Mikey Madison, who won the best actress award for Anora, is quite good in the role. That said, it’s difficult to evaluate her performance in such a meandering film.</p> <p>She tries hard playing a stripper who falls for Prince Charming – a Russian oligarch (Hollywood’s anti-Russian sentiment has certainly grown in recent years) who turns out to be a bit of a weakling with meanie parents. But Madison never really convincingly embodies the character, and we’re ever aware as we watch the film that she’s an actress working her way through relevant emotions and intensities.</p> <p>That said, Madison is good at yelling and stripping, and this is the main way she shows her chops here. She screamed well in Once Upon a Time… in Hollywood (2019), too. The bar this year was admittedly pretty low, and truth be told Madison’s performance in Anora (aside from Fernanda Torres for I’m Still Here) is probably the best out of the nominees.</p> <p>In contrast, Adrien Brody, who won the best actor award, is absolutely unforgettable in the flawed but magnificent The Brutalist – the best he’s been since The Pianist, and the deserved winner by a mile out of a similarly mediocre field. Brody is simply a pleasure to watch, and drives, in a wholly embodied way, this grandiose and exceedingly long film (the fact it doesn’t feel long is largely due to his magnetism).</p> <p>The screenplay, in which the character comes across as a combination of arrogant, sweet and at times comedic, allows Brody to display the full range of his talent, and he plays the whole thing with an endearing vulnerability. But, again, it’s unfair to compare Brody and Madison – The Brutalist is a spectacularly accomplished cinematic epic, while Anora feels as stylish and profound as a social media video (I know that’s the point, but that doesn’t make it any more compelling).</p> <p>– <em>Ari Mattes</em></p> <h2>A lacklustre year for music</h2> <p>This was a strong year for music-based films, with three of the most nominated ones being musicals of various types: the big-budget Broadway adaptation Wicked, the original film musical Emilia Pérez, and the musician biopic A Complete Unknown.</p> <p>The music of the ceremony itself was nicely assembled, with a live orchestra (conducted by Michael Bearden) accompanying proceedings from above the stage.</p> <p>But the show was marred by an absence: the best song nominations were not performed live. The new songs this year were so bland, however – especially when compared to the Wicked score and Bob Dylan – that I can hardly blame the producers. The nominations included a dull Elton John song, some soft guitar rock from Sing Sing, Diane Warren’s 16th (!) nominated song (more soft rock), and two forgettable songs from Emilia Pérez (one of which, El Mal, was the winner).</p> <p>So little faith did the Academy have in the songs that only a few seconds were played from each, mostly covered by a montage of interviews with the songwriters.</p> <p>This year’s nominated best scores were not much more memorable, but Daniel Blumberg deserved his win for The Brutalist. It demonstrates a high level of composition and orchestration craft. It uses edgy instrumental textures to increase the feelings of uncertainty and imbalance that the film imparts.</p> <p>The show included a lot of Wizard of Oz. Ariana Grande sang Over the Rainbow from the 1939 film and Cynthia Erivo sang Home from The Wiz, the 1974 soul musical based on the book. Then they performed Defying Gravity from Wicked together.</p> <p>Another subtle Wizard of Oz nod was the music played during the commercial breaks: a loop based on Brand New Day from The Wiz, whose 1979 film version had its music produced by the late Quincy Jones. Queen Latifah and backup dancers brought some much needed energy to the last hour of the ceremony with Ease on Down the Road, also from The Wiz, as part of a Jones tribute.</p> <p>One surprise was an unnecessary but enjoyable James Bond sequence featuring Margaret Qualley dancing to John Barry’s famous theme, a performance of Live and Let Die by K-pop star Lisa, Doja Cat singing Diamonds Are Forever, and Raye’s rendition of Skyfall.</p> <p>This plus the various numbers from the Oz Musical Universe only highlighted how lacklustre this year’s nominated music was.</p> <p>– <em>Gregory Camp</em></p> <p><!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><em>By <a href="https://theconversation.com/profiles/harriette-richards-992933">Harriette Richards</a>, Senior Lecturer, School of Fashion and Textiles, <a href="https://theconversation.com/institutions/rmit-university-1063">RMIT University</a>; <a href="https://theconversation.com/profiles/ari-mattes-97857">Ari Mattes</a>, Lecturer in Communications and Media, <a href="https://theconversation.com/institutions/university-of-notre-dame-australia-852">University of Notre Dame Australia</a>; <a href="https://theconversation.com/profiles/gregory-camp-1280180">Gregory Camp</a>, Senior Lecturer, School of Music, <a href="https://theconversation.com/institutions/university-of-auckland-waipapa-taumata-rau-1305">University of Auckland, Waipapa Taumata Rau</a>; <a href="https://theconversation.com/profiles/stuart-richards-9983">Stuart Richards</a>, Senior Lecturer in Screen Studies, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a>, and <a href="https://theconversation.com/profiles/tom-clark-4911">Tom Clark</a>, Chair of Academic Board, <a href="https://theconversation.com/institutions/victoria-university-1175">Victoria University</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/from-the-fashion-to-the-speeches-to-the-music-this-was-an-oscars-of-few-surprises-5-experts-break-it-down-251264">original article</a>.</em></p> </div>

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From sunscreen to essential oils, why some personal care products could be harmful to your health

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/asit-kumar-mishra-1458839">Asit Kumar Mishra</a>, <a href="https://theconversation.com/institutions/university-college-cork-1321">University College Cork</a></em></p> <p>Each time you apply sunscreen to your face, you may inhale somewhere between <a href="https://www.mdpi.com/1660-4601/20/11/5944">10 to 30 milligrams of ethanol</a>, the type of alcohol used in alcoholic drinks. While the ethanol in sunscreen may not give you a buzz, it could make you think about what other chemicals you might be exposed to from personal care products.</p> <p>Products that are applied to the face, like sunscreen, can increase the inhalation of some chemicals by ten times or more than you would inhale from your <a href="https://pubmed.ncbi.nlm.nih.gov/34816489/">home air in the entire day</a>.</p> <p>The levels of ethanol in cosmetics and skincare products may be reasonably safe – although it can still dry out the skin, causing pain, redness and swelling, and <a href="https://www.gov.uk/government/publications/ethanol-properties-uses-and-incident-management/ethanol-general-information">irritate the eyes</a>, causing tears, burning and stinging – but personal care products such as shampoos, skin creams, deodorants, cosmetics and perfumes contain fragrances and other volatile organic compounds (VOCs), which can be inhaled, absorbed through skin or ingested and some are more toxic than others.</p> <p>Unfortunately, manufacturers of personal care products <a href="https://link.springer.com/article/10.1007/s11869-015-0327-6">do not have to disclose</a> every fragrance compound used. This is concerning when you consider the potential effects of toxic compounds that <a href="https://pubmed.ncbi.nlm.nih.gov/34816489/">have been detected</a> in the air from personal care products. For example, hair-smoothing products have released formaldehyde, a toxic chemical that can cause <a href="https://www.ncbi.nlm.nih.gov/books/NBK597627/">a range of symptoms</a> from dermatitis to low sperm count. Some perfumes and deodorants have generated monoterpenes, chemicals which <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8912113/#sec1-molecules-27-01716">can prove toxic</a> for some users.</p> <figure><iframe src="https://www.youtube.com/embed/cfloNXKeyX8?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>Some of the VOCs found in personal care products <a href="https://pubmed.ncbi.nlm.nih.gov/36976159/">may trigger</a> skin irritation, headaches – and difficulty breathing, which can develop into an asthma attack in some users. The highest or peak concentration of these VOCs are likely to <a href="https://pubmed.ncbi.nlm.nih.gov/22406137/">occur within ten minutes</a> of application. But these concentrations may take up to <a href="https://pubmed.ncbi.nlm.nih.gov/34816489/">two hours to decrease to background levels</a>, depending on your home’s ventilation.</p> <h2>Natural doesn’t mean risk free</h2> <p>But even if the levels of <a href="https://pubmed.ncbi.nlm.nih.gov/20659630/">VOCs in personal care products</a> are kept <a href="https://pubmed.ncbi.nlm.nih.gov/22406137/">within safe limits</a>, they can still cause discomfort and a variety of health issues, including irritation of the eyes and airways, migraines and asthmatic reactions, in those who’re <a href="https://enveurope.springeropen.com/articles/10.1186/s12302-020-00311-y">fragrance sensitive</a>. In the UK, <a href="https://link.springer.com/article/10.1007/s11869-018-00655-8">27% of the population</a> self reports as fragrance sensitive.</p> <p>It makes sense then that some people attempt to avoid potentially toxic synthetic chemicals in cosmetics by opting for “natural” or “clean” personal care products. But, <a href="https://enveurope.springeropen.com/articles/10.1186/s12302-020-00311-y">natural does not mean safer</a>.</p> <p>For instance, essential oils are often used in “natural” personal care products as fragrance. Essential oils, though, are a source of terpenes, some of which can be <a href="https://www.lung.org/blog/essential-oils-harmful-or-helpful">toxic if absorbed, inhaled or swallowed</a>.</p> <p>Indoor concentration of terpenes are often at levels where you can smell them but not high enough to cause <a href="https://pubmed.ncbi.nlm.nih.gov/28126407/">eye or respiratory tract irritation</a>. However, the terpenes from essential oils can react with other chemicals, such as ozone from outdoor air, producing <a href="https://pubmed.ncbi.nlm.nih.gov/32162221/">byproducts like formaldehyde, a known carcinogen</a> and <a href="https://pubmed.ncbi.nlm.nih.gov/22250748/">allergens</a>.</p> <h2>Beauty salon safety</h2> <p>Beauty salons can be particularly risky environments for exposure to VOCs. <a href="https://www.mdpi.com/1660-4601/19/7/4176">Studies have found</a> contaminants such as formaldehyde, ammonia and <a href="https://www.gov.uk/government/publications/toluene-properties-incident-management-and-toxicology/toluene-toxicological-overview">toluene</a>, a potentially harmful ingredient used in many personal care products, at high levels in salons, putting staff who work there at the highest risk.</p> <p>Formaldehyde levels in some salons have reached <a href="https://pubmed.ncbi.nlm.nih.gov/31321727/">above safety limits</a>. <a href="https://www.dcceew.gov.au/environment/protection/npi/substances/fact-sheets/methyl-methacrylate#tabs-2">Methyl methacrylate</a>, which can cause skin irritation, allergic reactions and potential <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC3072694/">respiratory issues</a> has been <a href="https://pubmed.ncbi.nlm.nih.gov/30276513/">detected in the air of nail salons</a>.</p> <figure><iframe src="https://www.youtube.com/embed/ydRklqO01fE?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>These contaminants are not necessarily limited to the places in a salon <a href="https://pubmed.ncbi.nlm.nih.gov/23765035/">where a certain product is being used</a>. Beauty salons with poor ventilation are likely to expose workers and customers to <a href="https://pubmed.ncbi.nlm.nih.gov/29494285/">much higher levels of contaminants</a>. Some of the components of personal care products are known, harmful contaminants and carcinogens.</p> <p>Regulations specifically related to ventilation in environments where large volumes of these products are used do reduce exposures. For instance, studies show that after ventilation regulations came into effect in Boston, US in 2011, the <a href="https://pubmed.ncbi.nlm.nih.gov/31622145/">air quality inside nail salons improved</a>.</p> <p>When visiting your nail salon or hair stylist, check with them about their ventilation system and other steps they are taking to reduce exposure to VOCs.</p> <p>To limit exposure to potential VOCs at home when using personal care products, try to open windows and use extractor fans in wet rooms. Be especially careful when applying products to the face or when using a high temperature application – <a href="https://occup-med.biomedcentral.com/articles/10.1186/s12995-018-0213-x">high temperatures can increase emissions</a>.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/248273/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/asit-kumar-mishra-1458839"><em>Asit Kumar Mishra</em></a><em>, Research Fellow in School of Public of Health, <a href="https://theconversation.com/institutions/university-college-cork-1321">University College Cork</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/from-sunscreen-to-essential-oils-why-some-personal-care-products-could-be-harmful-to-your-health-248273">original article</a>.</em></p> </div>

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I spy with my little eye: 3 unusual Australian plant ecosystems to spot on your next roadtrip

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/gregory-moore-1779">Gregory Moore</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>When the growing gets tough, the tough trees and shrubs get growing.</p> <p>Australia’s environment is brutal. Its ancient, low-nutrient soils and generally low rainfall make it a hard place for plants to grow. Despite this, the continent is filled with wonderfully diverse plant ecosystems.</p> <p>If you don’t know what you’re looking for, it can be easy to miss these seemingly unremarkable species. So, here are three little-known Australian plant species and ecosystems to look out for during your next roadtrip.</p> <h2>1. Cycads and eucalypts</h2> <p>If you are driving a coastal route along southern New South Wales, keep an eye out for the stunning combination of burrawang cycads (<em>Macrozamia communis</em>) and spotted gum (<em>Corymbia maculata</em>). These species live in harmony along the <a href="https://www.botanicgardens.org.au/our-science/our-collections/plant-families/cycads#:%7E:text=Meet%20one%20of%20the%20world's%20most%20southern%20Cycads&amp;text=On%20the%20New%20South%20Wales,Spotted%20Gums%20(Corymbia%20maculata).">NSW coastline</a>, from Kempsey to Bega, and inland as far as Mudgee.</p> <p>If you’re on a road trip, now is the perfect time to talk to children about ancient moving continents, volcanoes and dinosaurs.</p> <p>Cycads are <a href="https://anpsa.org.au/APOL2009/feb09-s3.html">ancient gymnosperms</a> (cone-bearing plants) which evolved long before the Gondwanan supercontinent separated. These tough, hardy plants saw the dinosaurs come and go, and their relatives are found all around the world.</p> <p>These <a href="https://www.botanicgardens.org.au/our-science/our-collections/plant-families/cycads#:%7E:text=Not%20only%20is%20Macrozamia%20communis,inland%20as%20far%20as%20Mudgee.">cycads</a> form a striking understorey to the spotted gum. As their scientific name (<em>Macrozamia communis</em>) suggests, they form a dense community.</p> <p>Further north in Queensland, pineapple cycads (<em>Lepidozamia peroffskyana</em>), and Western Australia’s zamia palm (<em>Macrozamia riedlei</em>) are also worth spotting.</p> <p>Cycad seeds are poisonous, but First Nations Australians worked out a complex process to prepare them for <a href="https://www.apscience.org.au/apsf20036/">safe eating</a>. This involved dissolving the <a href="https://www.scienceflip.com.au/subjects/chemistry/equilibriumandacidreactions/learn10/">plant’s toxins</a> in running water, cooking, working and grinding the seeds into a powder.</p> <p>Spotted gums evolved long after dinosaurs went extinct. Early eucalypt fossils date from about 34 million years ago, while current species are often only a few million years old.</p> <p>Spotted gums are a great example of how plants that survive tough environments often also do well in difficult <a href="https://theconversation.com/the-humble-spotted-gum-is-a-world-class-urban-tree-heres-why-212540">urban situations</a>.</p> <p>Cycads are similarly found growing in poor soils and arid conditions. They have long, glossy leaves up to about 1.5 metres in length with lots of leaflets.</p> <p>There are both male and female plants. The female cone is an impressive, wide-domed structure that can be almost half a metre across. Its bright orange-red seeds are eaten by <a href="https://backyardbuddies.org.au/backyard-buddies/cycads/#:%7E:text=If%20you%20have%20a%20female,bats%20will%20feed%20on%20them.">foraging marsupials</a>, large birds and flying foxes.</p> <p>Spotted gums are tall, straight eucalyptus trees with dark green, glossy leaves. Old bark creates dark grey spots against their cream coloured trunk, giving them a mottled look.</p> <p>It is interesting to see ancient and modern species in such a close community relationship in cycad-spotted gum forests. Both are also well-adapted to the fires that frequent their habitat.</p> <h2>2. Ancient acacias</h2> <p>Travelling inland, the environment gets even tougher. Most large trees disappear and are replaced by woodlands dominated by <a href="https://www.agriculture.gov.au/sites/default/files/abares/forestsaustralia/publishingimages/forest%20profiles%202005/acacia_forests_2005.pdf">inland acacia</a> (wattle) species.</p> <p>These inland acacias are short but mighty, with deep, extensive root systems.</p> <p>Two of these species, <a href="http://theconversation.com/the-mighty-mulga-grows-deep-and-lives-long-118838">mulga</a> (<em>Acacia aneura</em>) and brigalow (<em>A. harpophylla</em>) are part of Australian folklore. A Banjo Paterson character <a href="https://gutenberg.net.au/ebooks/e00072.txt">says</a>: “You know how the brigalow grows […] saplings about as thick as a man’s arm”.</p> <p>Nutrients and water resources are limited, so mulga and brigalow trees are often evenly spaced across the landscape. This eerie symmetry makes it look like they were planted by humans.</p> <p>Many people are unaware that the twisted, stunted specimens they see are more than 250 years old and occupy vast tracts of the Australian landscape.</p> <p><a href="https://www.dcceew.gov.au/environment/biodiversity/threatened/action-plan/priority-plants/waddy-wood">Waddy-wood</a> (<em>Acacia peuce</em>) is a rare species of acacia, found in just three locations on the edge of the Simpson Desert. This tree has very strong wood, and was used by Indigenous Australians for making clubs (waddys) and tools for carrying fire.</p> <p>Inland acacias were widely used by Indigenous Australians for their wood, resins and medicinal properties. They have also been used as <a href="https://www.dpi.nsw.gov.au/__data/assets/pdf_file/0003/671421/using-mulga-as-a-forage-supplement-for-livestock-in-droughts.pdf">fodder for livestock</a>, especially during drought.</p> <p>These <a href="https://era.dpi.qld.gov.au/id/eprint/13430/1/QJAS_6%5B2%5D_1949_pp87-139_everist.pdf">crucial species</a> provide important habitat for other plants and animals. But they are under threat.</p> <p>As old trees collapse and die, there are no young trees replacing them. This is because of drought and grazing, compounded by <a href="https://www.agriculture.gov.au/sites/default/files/documents/environmental-risk-mitigation-plan-acacia.pdf">climate change</a>.</p> <p><a href="https://www.britannica.com/science/desertification">Desertification</a> – where fertile land is degraded until it essentially becomes desert – is becoming a huge problem due to the massive area dominated by acacias.</p> <h2>3. Boabs</h2> <p>If you’re driving across the Northern Territory and Western Australia, you might come across the <a href="https://theconversation.com/built-like-buildings-boab-trees-are-life-savers-with-a-chequered-past-118821">mighty boab</a> (<em>Adansonia gregoryii</em>).</p> <p>These close relatives of the African and Madagascan baobabs <a href="https://theconversation.com/baobab-trees-all-come-from-madagascar-new-study-reveals-that-their-seeds-and-seedlings-floated-to-mainland-africa-and-all-the-way-to-australia-231031">floated to Australia</a> as seeds or seedlings around 12 million years ago.</p> <p>These <a href="https://www.australiangeographic.com.au/topics/science-environment/2019/07/how-did-the-iconic-boab-tree-get-to-australia/">deciduous trees</a> live in mostly dry environments that also experience strong monsoonal-type rains. Boabs trap and store water in their trunks, allowing them not only to survive but thrive.</p> <p>Their African and Madagascan baobab relatives are sometimes called <a href="https://www.oneearth.org/species-of-the-week-african-baobab-tree/">trees of life</a>, as they support many species.</p> <p>Australian boabs are similar. They offer habitat, roosting and nesting sites. Their flowers and fruits are food sources to many species of insects and birds.</p> <p>They were – and are – important trees in First Nations cultures. Carvings and symbols on their trunks can last for more than a century, much longer than on other trees. These are called <a href="https://www.snexplores.org/article/carvings-australia-boab-trees-lost-history-first-nation">dendroglyphs</a>.</p> <p>For example, <a href="https://theconversation.com/the-boab-trees-of-the-remote-tanami-desert-are-carved-with-centuries-of-indigenous-history-and-theyre-under-threat-191676">snake carvings</a> dated to more than 200 years old have been found on boab trees in Northern Australia’s Tanami Desert.</p> <p>While these special trees are usually found far from the beaten track, they can be spotted growing around Darwin and other remote towns. If you get the chance to see them, count yourself lucky.</p> <h2>Tough terrain, tough trees</h2> <p>Plant communities are remarkably resilient. They also display great creativity when evolving ways to survive tough environments.</p> <p>Make sure to keep an eye out as you’re exploring Australia and enjoy the fascinating plants our country has to offer.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/246129/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/gregory-moore-1779"><em>Gregory Moore</em></a><em>, Senior Research Associate, School of Agriculture, Food and Ecosystem Sciences, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/i-spy-with-my-little-eye-3-unusual-australian-plant-ecosystems-to-spot-on-your-next-roadtrip-246129">original article</a>.</em></p> </div>

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Why physical affection can boost your health

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/viren-swami-241976">Viren Swami</a>, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a></em></p> <p>In the opening scene of <a href="https://www.youtube.com/watch?v=H9Z3_ifFheQ">Love, Actually</a>, Hugh Grant’s character says how, whenever he gets gloomy with the state of the world, he thinks about the arrivals gate at Heathrow airport. The reason is on screen: we see couples kissing, old friends embracing, children smiling and laughing as they jump into the arms of their parents.</p> <p>Airports are great places to really understand the importance of physical affection – hugging, kissing, cuddling, holding hands, or even just touching. But physical affection is ubiquitous in everyday life, too – and with good reason. Science shows that non-sexual physical affection produces more than just moments of joy – it also <a href="https://www.tandfonline.com/doi/abs/10.1080/03637751.2020.1805480?casa_token=DrsRLnkOANAAAAAA:u8gR6dQFL2Jp99tIr3m1Bcm14hc-EwVrbckdpuDX0HyWEBDrzoUcxNYpkCQzXP5oD_IhHqzYo7Fj">benefits</a> our mental and physical health.</p> <figure><iframe src="https://www.youtube.com/embed/PlyMXYys16U?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>Physical affection is one of the <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1475-6811.1998.tb00157.x?casa_token=Rq8rCHwvKboAAAAA%3AxmDZvSXM6wTZuZzCCotRMro4nC_xcSbnw6Em8Od29q__XfYEhuwW9Iigpr2c8WlZJ_aMY4ng5m-DM40">most direct</a> and important ways that people communicate intimacy in their romantic relationships. And it seems to occur in romantic relationships all over the <a href="https://journals.sagepub.com/doi/abs/10.1177/0146167220988373?casa_token=2rLs7-9M9bAAAAAA:UduYJMPaWQmLGFZXW0YcLvaBf-Lor1jITDDSIpqVTtTVuznW7YC89p-Jp0WUtebc2UTE8-ikrrxp&amp;casa_token=2_f_mSXK3YYAAAAA:AkLcZq_uAkQ7HyQL9jCDdubu7zuseAslE864obd1OYUMR1JLq7JPDM3C7lLMJTzDHEnQwgs6kQRi">world</a>, despite cross-cultural differences in ideas of love and romance.</p> <p>People in romantic relationships report more <a href="https://link.springer.com/article/10.1007/s10919-018-0281-8">intimate physical affection</a> than singletons. They’re also more comfortable allowing their partners to touch more of their bodies than strangers or friends. For example, most people are comfortable being touched on their <a href="https://www.pnas.org/doi/abs/10.1073/pnas.1519231112">thighs and abdomen</a> by their partner, but not by other people.</p> <p>Even how we touch our partners is different to how we touch other people. When participants in one study were asked to stroke their partner, a friend, a stranger, or an artificial arm, they did so more <a href="https://link.springer.com/article/10.1007/s10919-020-00334-2">slowly</a> with their partner. Slower strokes may may be experienced as more pleasant and <a href="https://academic.oup.com/jsm/article/14/5/645/6973562">erotic</a> than quicker strokes. Even just <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0203039">thinking</a> about physical affection from a partner evokes pleasant and erotic sensations.</p> <p>There is now strong evidence showing that physical contact is associated with better physical and mental health. One <a href="https://www.nature.com/articles/s41562-024-01841-8">review</a> of “touch interventions” – think massage – in 212 studies involving more than 13,000 participants found that physical touch benefited everything from sleep patterns to blood pressure to fatigue. Touch interventions were especially helpful in reducing pain, depression and anxiety.</p> <h2>Couple’s therapy</h2> <p>Before you rush off to book yourself a massage, you should know that much of the evidence suggests the strongest benefits come from physical affection with romantic partners. Several studies have found that, in couples, physical affection is associated with a range of <a href="https://www.sciencedirect.com/science/article/pii/S0273229711000025?casa_token=ER4aGB-3vusAAAAA:IBMtXZdEpTywjizJ4kwcOPO2HykSwgaK3GS3qYWh5JTYvWJCLW-x1I3IYDYKbzLZ9aX8QIhOLlA">physiological</a> effects, including lower blood pressure and better immune responses.</p> <p>In couples, physical affection is also associated with better psychological <a href="https://journals.sagepub.com/doi/abs/10.1177/0146167213497592?casa_token=_OtVkA13hgkAAAAA%3AU6eWWQLI4CXadtUanBR1PEGBA-Xh8en3plwOayvC4KNF_Ybi8zyzHjheM1m2XWLxjgczoQstUEEbDg&amp;journalCode=pspc">wellbeing</a>. One study found that couples who <a href="https://link.springer.com/article/10.1007/s42761-021-00093-3">sleep-touched</a> – cuddling shortly before or after sleep – felt happier and calmer in the morning, which meant they were more likely to enjoy the company of their partners.</p> <p>Physical affection – including <a href="https://link.springer.com/article/10.1007/s10508-013-0190-1?correlationId=bbd6ba1a-a372-4cae-83b3-6d9ba5704f4e&amp;error=cookies_not_supported&amp;code=dc878548-1748-44ed-bf6b-36dd348ea060">kissing</a> and <a href="https://link.springer.com/article/10.1007/s10508-014-0305-3">affection after sex</a> – is also associated with greater relationship and <a href="https://link.springer.com/article/10.1007/s10508-016-0820-5">sexual satisfaction</a>, and better ratings of one’s relationship overall, which in turn contribute to better psychological wellbeing. And even when conflicts do occur, <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0203522">hugging</a> seems to reduce levels of negative mood in couples.</p> <p>Cuddle up, because there’s more. Receiving physical affection from a partner makes us feel psychologically stronger. One study found that women showed less activation in parts of the brain that respond to threat when <a href="https://journals.sagepub.com/doi/10.1111/j.1467-9280.2006.01832.x">holding their husband’s hand</a>. Even just imagining touch from a partner can increase one’s willingness to take on <a href="https://www.sciencedirect.com/science/article/abs/pii/S0022103116302013?via%3Dihub">challenging tasks</a>.</p> <p>Another way to look at this is to examine what happens when we lose physical affection. Studies have shown that “<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/ijop.12616">touch deprivation</a>” – the absence of touch – is associated with greater symptoms of depression and anxiety. Indeed, the loss of affection from others during the pandemic <a href="https://esmed.org/MRA/mra/article/view/2204">hit many people hard</a>. Among couples, a <a href="https://www.tandfonline.com/doi/abs/10.1080/10570314.2014.927071?casa_token=D34OY4K-RBIAAAAA:GY-MyGWWcZfOZgOYLmtjYbn3buO5fL1FUiD7whf1fs_aFQPGORTPwOS9Eh0ODdbeRmW32ehtrtntug">lack of physical affection</a> is associated with lower relationship satisfaction, stress, and feelings of loneliness.</p> <figure><iframe src="https://www.youtube.com/embed/ErWfdjdOah8?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe></figure> <p>There are several ways in which physical affection provides these benefits. Affectionate touch is known to activate <a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/hbm.23679">reward centres</a> of the brain, which boosts our mood and promotes feelings of wellbeing. Touch also stimulates the release of <a href="https://www.sciencedirect.com/science/article/abs/pii/S0163638320301107?casa_token=I6GG0M3UAQEAAAAA:qSsExsEvHY9NHduwUF26okRMUm1Ls-gYHbrVNzaYgMkmS-Ohk2Y5ZvowbF2iWfpa6SO-mw6duuI">oxytocin</a>, which can strengthen social bonds and increase feelings of trust between individuals. It’s for these reasons that oxytocin is sometimes called the “cuddle chemical”.</p> <p>Physical affection also reduces levels of the stress hormone <a href="https://doi.org/10.1016/j.psyneuen.2007.03.011">cortisol</a> and reduces perceived pain, which suppress physiological stress systems. One study found that a ten-minute neck-and-shoulder <a href="https://www.sciencedirect.com/science/article/abs/pii/S0306453007000698?casa_token=2Bzr1YblT_wAAAAA:U9SNg8zkf30IXRI9MHpvdrJHJm6SWSbmnwpMu5pmMVElt5xifUTAkaM8Vp3vvOcas9JTUYHZlwQ">massage</a> from one’s partner helped lower cortisol responses, helping to regulate levels of stress.</p> <p>Psychologically, physical affection in romantic relationships is an important way <a href="https://journals.sagepub.com/doi/abs/10.1177/0146167213497592?casa_token=_OtVkA13hgkAAAAA%3AU6eWWQLI4CXadtUanBR1PEGBA-Xh8en3plwOayvC4KNF_Ybi8zyzHjheM1m2XWLxjgczoQstUEEbDg&amp;journalCode=pspc">to keep our emotions under control</a>. Touching one’s partner in a caring manner helps to improve their mood and makes them feel loved, secure, and safe. As feelings of <a href="https://link.springer.com/article/10.1007/s10508-006-9071-1">connection</a>, trust, and belonging are strengthened through non-sexual physical signs of affection, negative effect is reduced and psychological well-being is improved.</p> <p>However, not everyone likes to be touched, even if it is by their romantic partners. Some people are “<a href="https://link.springer.com/article/10.1007/BF00990960">touch avoidant</a>” – and some people may actually be apprehensive about being touched. For instance, people with avoidant attachment styles – characterised by a discomfort with emotional closeness – often have very <a href="https://doi.org/10.1016/j.paid.2014.05.035">negative views about cuddling</a> and are more <a href="https://journals.sagepub.com/doi/10.1177/0146167295213008">hesitant</a> to touch their partners. Conversely, people with anxious attachment styles – characterised by a fear of abandonment – may desire <a href="https://journals.sagepub.com/doi/10.1177/0146167295213008">more touch</a> than they receive.</p> <p>But when couples have similar touch preferences, it can lead to greater attraction, <a href="https://journals.sagepub.com/doi/abs/10.1177/0265407520910791?casa_token=Q1265G4ynqsAAAAA%3AWuu40ji4ca-_TKKA7P2CeSqeTTFfYH-Bfz1c0pBUCJ6fD0_twBugXqg3Geon-ncaS2VhjfUTdp9HiQ&amp;journalCode=spra">closeness</a>, and commitment to one another. And if you’re looking for a fun way to incorporate non-sexual physical affection into your relationships, consider home massage. One study found that couples who <a href="https://www.mdpi.com/2254-9625/11/2/33">took turns massaging</a> each other at home felt a deeper connection with each other, and felt more relaxed and less stressed.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/247858/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/viren-swami-241976">Viren Swami</a>, Professor of Social Psychology, <a href="https://theconversation.com/institutions/anglia-ruskin-university-1887">Anglia Ruskin University</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/why-physical-affection-can-boost-your-health-247858">original article</a>.</em></p> </div>

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Protein and healthy ageing: What you need to know if you're over 50

<p>Healthy ageing is the new middle-aged mantra, but where do you start? If you’re over 50, one of the quickest wins in the battle to feeling great and ageing well is to increase your protein intake.</p> <p>Protein is an essential pro-ageing nutrient; it’s not just for gym junkies. It is vital to combat the serious impacts of ageing.</p> <p>Protein helps to stop age-related muscle loss and keep bones strong, when combined with exercise. It supports immune function and plays an essential role in maintaining and repairing body tissues and wound healing.</p> <p>Nutrition scientist Louise Fisher specialises in healthy ageing. She helped <a href="https://www.boldhealth.com.au" target="_blank" rel="noopener">Bold Health</a> develop its +50 pro-ageing protein powder and she has recently reviewed the past five years of published scientific research on protein and ageing to determine how much protein you really need to age well.</p> <p>The science on protein is moving fast. So, we asked Louise Fisher to share the latest insights on the eight most common questions about protein and healthy ageing. Here are her answers:</p> <p><strong>Does protein help with healthy ageing?</strong></p> <p>Protein is essential for healthy ageing. It helps keep your bones healthy and most importantly, it helps preserve muscle mass to stay strong.</p> <p>From as young as 30, you start to lose muscle mass and strength. This decline is barely noticeable at first, but it can accelerate to become a major problem as you get older impacting strength and mobility, increasing the likelihood of falls and even reducing your lifespan.</p> <p>The good news is you can slow down muscle loss, and even build muscle well into your 90s. Many studies have shown that a higher protein diet, combined with resistance training, is the best way to combat age-related muscle loss and preserve mobility.</p> <p>If you think of your muscles as a brick wall, the protein makes up the bricks and the resistance exercise is the work to build the wall. You need both to build that muscle.</p> <p>That’s not the only way protein helps you age well. Every cell in your body contains protein and your body is constantly using protein. Apart from building and maintaining muscles, protein helps repair tissues, forms the antibodies for your immunity system and the blood cells of our circulatory system, makes up many hormones, such as insulin, builds body structures of bones and collagen, and forms the enzymes we need to absorb nutrients from food and use energy.</p> <p><strong>Why do you need more protein once you turn 50?</strong></p> <p>The 50s are a good time to reassess your diet because simple changes now can have a big effect on your quality of life. Generally, as you age, you need fewer carbohydrates, because insulin resistance and higher blood glucose levels can become a common problem, while more protein becomes essential for muscle health, bone health and general wellbeing.Protein is made up of amino acids. As you get older, your body needs more amino acids to maintain, repair and build muscle. It also becomes less effective at using the amino acids. This is called anabolic resistance.</p> <p>As an example, one study revealed men in their 20s could build muscle with 20g of protein, while men in their 70s needed 40g of protein.</p> <p>Women, especially, need to prioritise protein for optimal bone health, because the drop in oestrogen with menopause increases the risk of developing osteoporosis. As you build and move your muscles, muscle contractions stimulate bone rebuilding. This helps maintain your bone density and reduce the risk of fractures. Stronger muscles help build stronger bones. Higher protein intakes are associated with a lower risk of hip fractures in older adults. </p> <p><strong>How much protein do you need for healthy ageing?</strong></p> <p>The latest science, combined with newer methods of assessing protein needs, show most healthy adults over 50 should consume at least 1g-1.2g of protein for each kilo they weigh, to help maintain muscle mass and age well.</p> <p>The formula is the same, whether you’re male or female. So, as an example a 70kg woman should aim for at least 70-84g of protein a day, and at least 90-108g of protein a day for a 90kg man. If you are doing strength training, as recommended, or other strenuous physical activity, you’ll need even more protein. I recommend at least an extra 20-30g of protein to help with muscle recovery on training days. </p> <p>The other group that needs higher protein intakes are people who might have a poor diet or those recovering from surgery or illness.</p> <p><strong>What are the signs that you’re not getting enough protein?</strong></p> <p>The early warning signs that you are not getting enough protein can be hard to spot. It could be that you are picking up more colds and viruses than normal, or that scratches do not heal as quickly.</p> <p>Sometimes that muscle weakness can show up in little things, for example it’s harder to open jars because of a small drop in grip strength. If you’re not getting enough protein, your body prioritises protein use for functions that keep you alive, such as repairing tissues, maintaining immunity, making new blood cells, hormones and enzymes.</p> <p>Building and maintaining muscle becomes a lower priority. On average most Australians do eat enough protein, but for some groups that’s not the case. People over 50 are at real risk of not getting enough protein to thrive.</p> <p><strong>When is the best time to consume protein for healthy ageing?</strong></p> <p>It may be best to spread your protein intake across the day, getting at least 20-30 g at main meals. Some studies indicate you absorb protein better this way, rather than relying on one high protein meal. In practice, it makes reaching your protein targets much more achievable.</p> <p>In my experience, people often miss protein at breakfast, especially if they just have a coffee or tea and toast or a piece of fruit to start the day. For something quick and easy, I’d suggest Greek yoghurt topped with nuts and fruit or high protein cereal with high protein milk.</p> <p>If you find it hard to eat first thing in the morning, or need something on the go, a protein shake is a great option.If you have been exercising, aim to get that extra 20-30g of protein soon afterwards. Again, a protein shake is often the easiest way to do this.</p> <p><strong>What are the best sources of protein for people over 50?</strong></p> <p>To age well, you need to choose the right sources of protein. It’s not just a matter of eating more sausages, bacon or a bigger steak. To help manage risk factors for heart disease such as cholesterol, it is important to have most of your protein from foods that are low in saturated fats.</p> <p>This means focusing on plant protein and lean animal sources, including lean meat, chicken, fish, legumes (dried and tinned beans, lentils), plant protein powders, tofu, nuts and seeds, reduced fat dairy, and eggs.</p> <p><strong>What’s the best protein powder for people over 50?</strong></p> <p>Look for a protein powder that is low in sugar and has added vitamins and minerals, because, as you get older, you need to make every mouthful count. It’s also a better bang for your buck.</p> <p>On my checklist are vitamin B12, vitamin D, calcium, folate and magnesium. These essential nutrients also support healthy ageing by helping to maintain muscle, bone, and heart health, as well as fight fatigue.</p> <p><span style="text-decoration: underline;"><em>Tip:</em></span> To avoid that bloated feeling you can sometimes get after drinking a protein shake, choose a protein powder that is lactose-free. Some people find blends with prebiotic fibres and digestive enzymes also help.</p> <p><strong>Why is eating more protein important if you’re dieting?</strong></p> <p>When you lose weight, you also generally lose some muscle mass as well. And the greater the rate of weight loss, the greater the loss of lean muscle.</p> <p>Maintaining protein intakes and resistance training, while trying to lose weight, is important to keep your strength, but not all weight loss methods make it easy to get enough protein.</p> <p>Intermittent fasting often involves people regularly skipping a meal. If poorly planned, this can lead to a shortfall in protein intake. With the increase in use of GLP-1 agonist drugs, such as Ozempic or Wegovy, for weight loss, we’re also starting to see nutritionists suggest that people prioritise protein intake to reduce the risk of sarcopenia, severe muscle and strength loss.</p> <p>Using a protein shake that is low in sugar and contains additional vitamins and minerals is a convenient way to get the nutrients you need and minimise muscle loss.</p> <p><em><strong>Louise Fisher is a highly qualified nutrition scientist with more than 10 years of experience as a clinical dietitian. Her key areas of expertise are healthy aging, diet, and exercise.</strong></em></p> <p><em><strong>Image credits: Supplied</strong></em></p>

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