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Is stress turning my hair grey?

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/theresa-larkin-952095">Theresa Larkin</a>, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a> When we start to go grey depends a lot on <a href="https://pubmed.ncbi.nlm.nih.gov/36631178/">genetics</a>. Your first grey hairs <a href="https://elifesciences.org/articles/67437">usually appear</a> anywhere between your twenties and fifties. For men, grey hairs <a href="https://pubmed.ncbi.nlm.nih.gov/22077870/">normally</a> start at the temples and sideburns. Women tend to start greying on the hairline, especially at the front. The most <a href="https://pubmed.ncbi.nlm.nih.gov/36631178/">rapid greying</a> usually happens between ages 50 and 60. But does anything we do speed up the process? And is there anything we can do to slow it down? You’ve probably heard that plucking, dyeing and stress can make your hair go grey – and that redheads don’t. Here’s what the science says. <h2>What gives hair its colour?</h2> Each strand of hair is produced by a hair follicle, a tunnel-like opening in your skin. Follicles contain two different kinds of <a href="https://www.sciencedirect.com/science/article/pii/S1534580720301040">stem cells</a>: <ul> <li>keratinocytes, which produce <a href="https://my.clevelandclinic.org/health/body/23204-keratin">keratin</a>, the protein that makes and regenerates hair strands</li> <li>melanocytes, which produce <a href="https://my.clevelandclinic.org/health/body/22615-melanin">melanin</a>, the pigment that colours your hair and skin.</li> </ul> There are <a href="https://www.ncbi.nlm.nih.gov/books/NBK459156/">two main types</a> of melanin that <a href="https://pubmed.ncbi.nlm.nih.gov/36631178/">determine hair colour</a>. Eumelanin is a black-brown pigment and pheomelanin is a red-yellow pigment. The <a href="https://theconversation.com/studying-the-complex-genetics-behind-hair-colour-reveals-how-melanin-affects-us-171088#:%7E:text=Eumelanin%20is%20also%20known%20as%20the%20brown-black%20pigment%2C,is%20due%20to%20low%20amounts%20of%20both%20pigments.">amount of the different pigments</a> determines hair colour. Black and brown hair has mostly eumelanin, red hair has the most pheomelanin, and blonde hair has just a small amount of both. <h2>So what makes our hair turn grey?</h2> As we age, it’s normal for cells to become less active. In the hair follicle, this means stem cells produce less melanin – turning our hair grey – and less keratin, causing hair thinning and loss. As less melanin is produced, there is less pigment to give the hair its colour. Grey hair has very little melanin, while white hair has none left. Unpigmented hair <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6290285/">looks grey</a>, white or silver because light reflects off the keratin, which is pale yellow. Grey hair is thicker, coarser and stiffer than hair with pigment. This is because the shape of the hair follicle becomes <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6290285/">irregular</a> as the stem cells change with age. Interestingly, grey hair also grows faster than pigmented hair, but it <a href="https://elifesciences.org/articles/67437">uses more energy</a> in the process. <h2>Can stress turn our hair grey?</h2> Yes, stress can <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6290285/">cause your hair to turn grey</a>. This happens when <a href="https://faseb.onlinelibrary.wiley.com/doi/epdf/10.1096/fj.05-4039fje">oxidative stress</a> damages hair follicles and stem cells and <a href="https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2022.839859/full">stops them producing</a> melanin. Oxidative stress is an imbalance of too many damaging free radical chemicals and not enough protective antioxidant chemicals in the body. It can be <a href="https://pubmed.ncbi.nlm.nih.gov/36631178/">caused by</a> psychological or emotional stress as well as autoimmune diseases. <a href="https://pubmed.ncbi.nlm.nih.gov/22077870/">Environmental factors</a> such as exposure to UV and pollution, as well as smoking and some drugs, can also play a role. Melanocytes are <a href="https://elifesciences.org/articles/67437">more susceptible to damage</a> than keratinocytes because of the complex steps in melanin production. This explains why ageing and stress usually cause hair greying before hair loss. Scientists have been able to link less pigmented sections of a hair strand to <a href="https://elifesciences.org/articles/67437">stressful events in a person’s life</a>. In younger people, whose stems cells still produced melanin, colour returned to the hair after the stressful event passed. <h2>4 popular ideas about grey hair – and what science says</h2> 1. Does plucking a grey hair make more grow back in its place? No. When you pluck a hair, you might notice a small bulb at the end that was attached to your scalp. This is the <a href="https://my.clevelandclinic.org/health/body/23435-hair-follicle">root</a>. It grows from the hair follicle. Plucking a hair pulls the root out of the follicle. But the follicle itself is the opening in your skin and can’t be plucked out. Each hair follicle can only grow a single hair. It’s possible frequent plucking could make your hair <a href="https://pubmed.ncbi.nlm.nih.gov/18713071/">grey earlier</a>, if the cells that produce melanin are damaged or exhausted from too much regrowth. 2. Can my hair can turn grey overnight? Legend says Marie Antoinette’s hair went <a href="https://www.healthline.com/health/marie-antoinette-syndrome">completely white</a> the night before the French queen faced the guillotine – but this is a myth. Melanin in hair strands is chemically stable, meaning it can’t transform instantly. Acute psychological stress does rapidly deplete melanocyte stem cells <a href="https://www.nature.com/articles/s41586-020-1935-3">in mice</a>. But the effect doesn’t show up immediately. Instead, grey hair becomes visible as the strand grows – at a rate of <a href="https://www.medicalnewstoday.com/articles/326764">about 1 cm per month</a>. <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7432488/">Not all hair</a> is in the growing phase at any one time, meaning it can’t all go grey at the same time. 3. Will dyeing make my hair go grey faster? This <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9953601/">depends on the dye</a>. Temporary and semi-permanent dyes should not cause early greying because they just coat the hair strand without changing its structure. But permanent products cause a chemical reaction with the hair, using an oxidising agent such as hydrogen peroxide. Accumulation of hydrogen peroxide and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10232955/">other hair dye chemicals</a> in the hair follicle <a href="https://pubmed.ncbi.nlm.nih.gov/36631178/">can damage</a> melanocytes and keratinocytes, which can cause greying and hair loss. 4. Is it true redheads don’t go grey? People with red hair also lose melanin as they age, but differently to those with black or brown hair. This is because the red-yellow and black-brown pigments are chemically different. Producing the brown-black pigment eumelanin is more complex and <a href="https://onlinelibrary.wiley.com/doi/full/10.1034/j.1600-0749.2002.02017.x">takes more energy</a>, making it more susceptible to damage. Producing the red-yellow pigment (pheomelanin) causes <a href="https://www.sciencedirect.com/science/article/pii/S016953472030375X">less oxidative stress</a>, and is more simple. This means it is easier for stem cells to continue to produce pheomelanin, even as they reduce their activity with ageing. With ageing, red hair tends to fade into strawberry blonde and silvery-white. Grey colour is due to less eumelanin activity, so is more common in those with black and brown hair. Your genetics determine when you’ll start going grey. But you may be able to avoid premature greying by staying healthy, reducing stress and avoiding smoking, too much alcohol and UV exposure. Eating <a href="https://www.healthline.com/health/melanin-in-hair#b-6-and-b-12">a healthy diet</a> may also help because vitamin B12, copper, iron, calcium and zinc all <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6290285/">influence melanin production and hair pigmentation</a>.<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/239100/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/theresa-larkin-952095">Theresa Larkin</a>, Associate Professor of Medical Sciences, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a> Image credits: Shutterstock 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/is-stress-turning-my-hair-grey-239100">original article</a>. </div>

Beauty & Style

Expert's number one complaint against grey nomads

An Aussie farm contractor has taken aim at "entitled" travellers at campsites, many of whom are "grey nomads". Victoria, aged in her 30s, spends a lot of time on the road travelling for work as she "runs the bar and does a bit of camp hosting" at Charlotte Plains, an outback sheep station and campground almost 800 kilometres west of Brisbane. Through her job, Victoria said most of her clientele at the campsites are over the age of 50, and she claims most of her problems are with these older travellers. Although she "doesn't want to generalise too much", she does "feel the need to speak out about them" so the younger generation "know what not to do" and become "better people". Speaking to <a href="https://au.news.yahoo.com/the-game-changing-trend-taking-over-australian-4wd-camping-sites-021745171.html" target="_blank" rel="noopener">Yahoo News Australia</a>, Victoria said in addition to their "general sense of entitlement", grey nomads, in her experience, had a tendency to "mansplain" issues she's acutely aware of, flout campsite rules, disregard safety policies and even resort to stealing from her. "I've experienced a lot with grey nomads," she told Yahoo. "I've worked on farms for years. I'm very experienced with operating machinery. I drive my caravan well, a lot better than a lot of these guys, some of whom even need help reversing." "But I guess the biggest issue I find is handling grey nomads, in particular is theft. I travelled South America in my 20s, and the only thing that ever went missing was a jar of Vegemite. Let me tell you, if my stuff is not nailed down, with grey nomads around — they've stolen it." Victoria said it's "more than just toilet paper" that goes missing at campsites, recalling, "It will be hose fittings that are still on the hose. It could be a whole hose. A grey nomad stole my jockey wheel the other day — it's travelled the whole country in the same spot, and then the other day somebody sole it. Even my sunglasses." "I don't want to categorise all baby boomers into one, but it's just that these are the people that I deal with," she argued, adding "there are bad people in every generation" but she says she rarely encounters badly behaved travellers under 40. While Victoria says she doesn't want to over-generalise, she's been astounded by some of the disrespectful actions she's seen at the hand of the elderly travellers. Speaking out in a bid to raise awareness of campsite safety and to deter young people from "acting like baby boomers", Victoria said she hopes by making her ordeals public it'll promote more courtesy from grey nomads in the future. "The next generation is growing up fast," she said. "Hopefully the younger ones don't do the same things and are bit more courteous to others". Image credits: TikTok

Travel Trouble

"Words matter": Why Australia's threat level was just raised to "probable"

Anthony Albanese has announced that Australia's terror level has been raised in the wake of spy agency warnings. The Prime Minister announced the change from “possible to probable” on Monday morning at a press conference in Canberra with ASIO director-general Mike Burgess. “ASIO is raising the national terrorist and threat level from possible to probable," Mr Burgess said. “Our decision reflects that the security environment is degrading. A threat level of probable is reassessed as a greater than 50 per cent chance of attack planning in the next 12 months." “It does not mean that we have intelligence about the current attack planning or expectation of an imminent attack." The National Terrorism Threat Advisory System has a scale of five levels, beginning with Not Expected, Possible, Probable, before rising to Expected and Certain. Mr Burgess said the decision was not taken easily, as he explained, “Our decision is not a direct response to the tragic events in the Middle East. At this stage we do not believe any of the terrorist plots we have investigated in the last year have been inspired by Gaza." “Terrorist leaders offshore are not inspiring attacks onshore. This is why we did not raise the threat level in the immediate aftermath of 7 October.” Mr Albanese said the decision follows a cabinet meeting today and briefings by spy agencies. “My government’s first priority is the safety and security of Australians and this morning, I convened a national-security committee meeting to hear from the director-general," Mr Albanese said. “I want to reassure Australians that probable does not mean inevitable and it does not mean it is intelligence about an imminent threat or danger. But the advice that we have received is that more Australians are embracing a more diverse range of extreme ideologies and it is our responsibility to be vigilant. Mr Burgess said it did not mean there was any imminent threat of a terrorist attack in Australia, but said it was about being vigilant and prepared. “Australia’s security environment is more volatile and more unpredictable, you’ve heard me say many times of espionage and foreign interference, our principal security concerns,’’ he said. “While the threats to our way of life are elevated we are seeing an increase in extremism, more Australians are being radicalised and radicalised more quickly. More Australians are embracing a more diverse range of extreme ideologies and more Australians are willing to use violence to advance their cause." In response to a question from the media on the Greens, who recently accused the Labor Party of being implicit in genocide when it comes to the war in Palestine, the Prime Minister said some of the rhetoric was of concern. “Words matter and it is important that people engage in a way that is respectful, that people don’t make claims that they know are not right in order to try to secure some short-term political advantage,’’ he said. Concluding the press conference, Mr Burgess said it is up to every Australian to say vigilant and report any suspicious behaviour. He said, "This is a matter for everyone, community leaders, politicians, the media, watch your words, watch your actions. Be very careful about that because there is a direct correlation between inflamed language and inflamed tension and violence.” Image credits: LUKAS COCH/EPA-EFE/Shutterstock Editorial

Legal

Commonly overlooked estate planning matters

Estate planning is a complex business, making it easy to overlook some important considerations, potentially with costly results. Aside from basic issues like forgotten assets (always keep written records) and inaccurate details (double check everything before signing), seven of the most commonly disregarded estate planning matters are as follows: <ol> <li>Wills</li> </ol> Unlike many younger people, for over sixties the more common issue is not the lack of a will, but one which is out of date. Out-of-date wills complicate matters for executors, can delay probate for your beneficiaries, and may not reflect your true wishes (imagine inadvertently leaving everything to your ex or omitting one or more grandkids!). Update your will as your circumstances change – relationships (divorce, new partner etc), births and deaths, adult children getting married or divorced, exiting a business, asset sales, and so on. Retirement often brings its own changes too – e.g. a sea or tree change, new boat or caravan – which also should be updated in your will. <ol start="2"> <li>Letter of wishes</li> </ol> Wills are typically not read until after a funeral. As such, a letter of wishes is a useful addition for loved ones to have accessible immediately after your death. It can cover everything from funeral arrangements, burial vs cremation, and where you wish to be laid to rest to outlining intentions longer term, such as how any underage children are to be raised and educated, or care arrangements for any pets. <ol start="3"> <li>Super beneficiaries</li> </ol> One of the biggest myths about superannuation is that it is covered by your will. Super is treated separately, meaning you must nominate your beneficiaries within your super fund. And update them as circumstances change. This can be useful for blended families – leaving your super to children/grandchildren from a past relationship without encroaching on the assets of your current partner. Without nominating beneficiaries, the funds could go somewhere else entirely – even to government coffers. <ol start="4"> <li>Advanced Health Directive (a ‘living will’)</li> </ol> Estate planning doesn’t just cover your wishes once you’re gone. Yet people often focus solely on this aspect and overlook how they want to be looked after in the event of ill health or injury preventing them from being able to make decisions (e.g. stroke, terminal illness, severe accident). An Advanced Health Directive can express your wishes and values on everything from life support and resuscitation to palliative care, medical treatments, and who you wish to be able to speak on your behalf. <ol start="5"> <li>Insurances</li> </ol> Rarely do people have adequate insurance coverage for their needs. There are insurances in super, which may cover death and permanent disability. Insurance of assets. Income protection insurance. And health insurance. It’s important to right-size your insurance for your current needs and adapt that cover as your circumstances change. That means: <ul> <li>Taking out new policies for new assets and investments.</li> <li>Updating policy inclusions and exclusions, such as relating to age.</li> <li>Cancelling insurances you no longer need (e.g. sold assets or professional indemnity once you retire).</li> </ul> <ol start="6"> <li>Tax implications</li> </ol> Because Australia has no inheritance tax, many people are lulled into a false sense of complicity over tax implications in estate planning matters. However, beneficiaries can be liable for both Capital Gains Tax and income tax on inherited assets – potentially outweighing the value of those assets altogether. Additionally, your own tax status should be considered. For instance, you may be paying more tax by holding an income-producing asset rather than transferring ownership to a loved one before you pass away. <ol start="7"> <li>Tailored professional advice</li> </ol> DIY will kits, self-titled “expert” authors, and avoiding advisers to save money overlook the true value of tailored, professional advice given the complexity of estate planning. You don’t know what you don’t know, meaning the margin for error is huge. And when it comes to money, tax and estate law, errors can be expensive indeed. A good lawyer, accountant and financial adviser can more than pay for themselves by helping you avoid overpaying taxes, complex legal disputes, insufficient asset protections and lost wealth creation opportunities. And given estate planning is ultimately about peace of mind, can you – or your family – really afford to overlook such valuable insight? Image credits: Shutterstock Helen Baker is a licensed Australian financial adviser and author of On Your Own Two Feet: The Essential Guide to Financial Independence for all Women. 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/">www.onyourowntwofeet.com.au</a> 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.

Legal

Hope: A double-edged sword in the human experience

Hope has long been cherished as a source of strength in times of adversity. Yet, as explored in this edited extract from his new book The Human Condition by author Tony Grey, this fundamental emotion is not without its complexities and potential pitfalls. --- As in the host of challenges explored in The Human Condition, the feeling of expectation and desire for something beneficial to happen, which we call hope, is as fundamental to the human condition as the will to survive; they’re linked within the evolutionary imperative. As Cicero pointed out, “dum spiro spero” (while I breathe I hope). Hope is a rolling prayer to life as time moves on, a whisper to the soul that things will turn out all right. The sentiment is generally unchallenged. Why should it be? In times of trouble, we need the balm of hope. Samuel Johnson said, “Hope is a species of pleasure, and perhaps, the chief pleasure this world affords.” While usually positive about hope, Greek philosophers were sometimes ambivalent about it, citing its propensity, through wishful thinking, to encourage indolence or actually cause harm. In Sophocles’ play Antigone, the Chorus sings, “Hope whose wanderings are so wide is to many men a comfort, but to many a false lure of giddy desires.” Plato observes that hope breeds a confidence which can exacerbate a precondition of arrogance in the powerful, leading to serious wrongdoing. “It is among these men that we find the ones who do the greatest evils.” Napoleon and Hitler are examples. And so is the Japanese government responsible for the Pearl Harbour attack. At the World War Two surrender on the deck of the USS Missouri, a Japanese general was heard to say when he looked at the sky blackened by Allied aircraft flying past and the sea bursting with warships, “How did we ever hope we could win?” On the other hand, Plato stressed the motivational properties of hope when directed towards a good aim. And Aristotle links hope with the virtue of megalopsychia (high-mindedness) resulting from its inspirational role. I have an experience of this in my family. My nephew was born to my sister with intellectual disability, and other difficulties. His condition seemed hopeless. Nevertheless, from the first, hope was my sister’s support; it gave her the energy to carry on. Through the gloom it afforded a glimpse into the future where progress beckoned. And all along she demonstrated that hope is ineluctably linked to love. Aided by her husband, the father, she worked day and night teaching and inspiring the boy. When old enough he went to a special needs school and gradually progressed, indefatigably supported at home. Over time his condition improved so that eventually he could take and keep a simple job, cook food, and have friends (similarly disabled), a state absolutely unforeseeable at his early stage of life. Throughout all the difficulties, frustrations and threats of despair, hope sustained my sister and guided her to the wonderful achievement of saving a human life. In most instances, hope is personal in the sense that something specific to the individual or those who are close is wanted. However, it can range far beyond that into areas involving others such as team sports, politics, economic activity, justice, national and tribal identity, international relations – notably war, and pandemics like Covid. Within these fields, hope calls out for the survival and well-being of humanity and its prospects for moral and material progress. Such hope embraces faith in something bigger than the individual. If human beings have a purpose, its linked to that, and its fulfillment is somehow bound up in hope. This approach cries out for exploring a whole array of other challenges inherent in the human condition. ABOUT THE AUTHOR Tony Grey is an accomplished author residing in Sydney. His latest book, The Human Condition, ambitiously explores the hurly burly of human existence, and is available now for purchase through Halstead Press Publishers. Tony is the founder of Pancontinental Mining, a former director of Opera Australia and the Conservatorium of Music, and a former trustee of the Art Gallery of New South Wales. Other books by Tony Grey include Jabiluka, East Wind and Seven Gateways. His writings have featured in the Australian Financial Review, Quadrant and the Australian. Image: Getty Images

Mind

Why "Grey Divorce" is on the rise in Australia

It seems that the older generation is taking a page out of the millennial playbook and saying, "Thanks, but no thanks" to marriage. According to a recent report by <a href="https://www.seniors.com.au/documents/australian-seniors-series-love-after-50-report-whitepaper.pdf" target="_blank" rel="noopener">Australian Seniors</a>, the trend of "Grey Divorce" has become so prevalent that one in three couples in Australia decide to call it quits after hitting the big 5-0. It turns out that once the kids have flown the nest, some couples find themselves facing a conundrum. And no, it's not a midlife crisis involving sports cars and questionable hair dye choices. It's the dreaded "empty nest syndrome" – the sadness and upheaval that parents experience when their adult children finally leave the family home. The report clearly highlights that almost half of these later-in-life divorces are triggered by the empty nest syndrome, followed closely by increased financial pressures (35 per cent) and retirement adjustments (34 per cent). But the report also reveals a silver lining. Many singles over 50 are discovering greater happiness and fulfilment in their solo acts. It's like they've found the secret formula for joy, and it doesn't involve a partner – just personal space, independence, financial control, peace and quiet, and less stress. Who needs a spouse when you can have tranquillity and control over the TV remote? In fact, more than half of single people over 50 reported being content without a committed partner, and almost one-third claimed that their relationship status was a positive influence on their happiness. Move over, relationship goals; it's time for solo satisfaction to take centre stage. And for those still treading the murky waters of late-life love, there's hope yet. The report offers some sage advice from those who've managed to keep the spark alive, including open and honest communication about changing needs, supporting personal growth, and maintaining independence. While the report concludes that overall divorce rates in Australia have actually hit an all-time low in recent years, the over-50 crowd appear to be shaking things up and going their own way. So, whether you're contemplating marriage or dealing with an unexpected guest cancellation at your wedding, just remember – there's a 50/50 chance you'll be navigating the exciting world of "Grey Divorce" someday. Image: Getty

Legal

Homeowners often feel better about life than renters, but not always – whether you are mortgaged matters

<a href="https://theconversation.com/profiles/rachel-ong-viforj-113482">Rachel Ong ViforJ</a>, <a href="https://theconversation.com/institutions/curtin-university-873">Curtin University</a>; <a href="https://theconversation.com/profiles/hiroaki-suenaga-1477343">Hiroaki Suenaga</a>, <a href="https://theconversation.com/institutions/curtin-university-873">Curtin University</a>, and <a href="https://theconversation.com/profiles/ryan-brierty-1477346">Ryan Brierty</a>, <a href="https://theconversation.com/institutions/curtin-university-873">Curtin University</a> Homeownership has long been thought of as the <a href="https://www.abc.net.au/news/2017-08-23/why-australians-are-obsessed-with-owning-property/8830976">great Australian dream</a>. For individuals, it’s seen as the path to adulthood and prosperity. For the nation, it’s seen as a cornerstone of economic and social policy. Implicit in this is the assumption that owning a home rather than renting one makes people better off. It’s an assumption we are now able to examine using data from the government-funded <a href="https://melbourneinstitute.unimelb.edu.au/hilda">Household, Income and Labour Dynamics in Australia</a> (HILDA) survey, which for two decades has asked questions both about homeownership and satisfaction with life. The <a href="https://melbourneinstitute.unimelb.edu.au/__data/assets/pdf_file/0007/4694137/ContinuingPersonQuestionnaireW23M.pdf">overarching question</a> asks "all things considered, how satisfied are you with your life? Pick a number between 0 and 10 to indicate how satisfied you are". We also looked at people’s satisfaction with their financial situation, their home and the neighbourhood in which they live. In a study published in the journal <a href="https://journals.sagepub.com/doi/10.1177/00420980231190479">Urban Studies</a>, we linked those answers to home ownership and characteristics including age and income. As expected, we found homeowners were generally more satisfied with their lives than renters. But we also find the extent to which they were more satisfied depended on whether or not they were still paying off a mortgage. <h2>Mortgaged homeowners about as satisfied as renters</h2> Outright home owners were 1.5 times as likely to report high overall satisfaction as renters. But home owners still paying off a mortgage were only a little more likely to feel high overall satisfaction. Similarly, outright owners were 2.3 times as likely to report high financial satisfaction as renters – but mortgaged owners were only 1.1 times as likely. When it comes to satisfaction with their home and neighbourhood, the differences were less extreme. Outright home owners were 3.1 times as likely to report high satisfaction with their home as renters, while mortgaged owners were 2.8 times as likely. Outright owners were 1.6 times as likely to report high satisfaction with their neighbourhood as renters, and mortgaged owners 1.4 times as likely. The results also varied with age and income. <hr /> <iframe id="hK9Ua" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/hK9Ua/3/" width="100%" height="400px" frameborder="0"></iframe> <hr /> As shown in the graph above, outright owners were more likely to report high financial satisfaction than renters across almost the entire age range. But mortgaged owners only showed a demonstrably greater financial satisfaction than renters between the ages of 25 and 50. Beyond age 50, the existence of a mortgage debt burden appeared to cancel out any boost to financial satisfaction from homeownership. This potentially reflects the growing financial stress of making mortgage payments as retirement approaches. <hr /> <iframe id="f2GSl" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/f2GSl/3/" width="100%" height="400px" frameborder="0"></iframe> <hr /> By income, mortgaged owners reported experiencing more financial satisfaction compared to renters the more they earned between A$80,000 and A$240,000. Outright owners experienced more financial satisfaction than renters up to A$320,000. Beyond these income levels, owners did not have greater financial satisfaction than renters, perhaps because high-earning renters have other sources of financial satisfaction. <h2>How satisfied people feel beyond 60</h2> In other respects, outright owners and mortgaged homeowners showed similar patterns, becoming more satisfied with their homes relative to renters the more they age up – until the age of 60. That’s when their satisfaction relative to renters declined, as illustrated below. This decline might reflect the growing physical burden of maintaining an owned home as people age. <hr /> <iframe id="oLrHz" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/oLrHz/2/" width="100%" height="400px" frameborder="0"></iframe> <hr /> Our study has important implications. One is that age matters. Although older people consistently express a desire to <a href="https://www.ahuri.edu.au/analysis/brief/whats-needed-make-ageing-place-work-older-australians">age in place</a>, we found satisfaction among those who owned vs rented their home declined beyond age 60. This suggests better integration between housing and care is critical to support people ageing in place. Another implication is that as low-income owners are more reliant on their homes as a source of relative financial satisfaction than high earners, they are <a href="https://www.cambridge.org/core/journals/journal-of-social-policy/article/housing-equity-withdrawal-perceptions-of-obstacles-among-older-australian-home-owners-and-associated-service-providers/268F54A8EAA1E9ECA118E243505AA9FD">more exposed</a> in times of crisis. They may face the risk of being forced to sell suddenly with little time to consider the consequences. And another implication is as the relative financial satisfaction of mortgage holders disappears after the age of 50, and as more of us approach retirement with mortgages intact, more of us will either <a href="https://journals.sagepub.com/doi/10.1177/00420980211026578">postpone retirement</a> or become dissatisfied. Our findings suggest the extension of mortgage debt into later life should be discouraged if the benefits of the Australian dream are to be preserved.<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/215147/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/rachel-ong-viforj-113482">Rachel Ong ViforJ</a>, ARC Future Fellow & Professor of Economics, <a href="https://theconversation.com/institutions/curtin-university-873">Curtin University</a>; <a href="https://theconversation.com/profiles/hiroaki-suenaga-1477343">Hiroaki Suenaga</a>, Senior Lecturer School of Accounting, Economics and Finance, <a href="https://theconversation.com/institutions/curtin-university-873">Curtin University</a>, and <a href="https://theconversation.com/profiles/ryan-brierty-1477346">Ryan Brierty</a>, PhD candidate, School of Accounting, Economics and Finance, <a href="https://theconversation.com/institutions/curtin-university-873">Curtin University</a> Image credits: Getty Images 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/homeowners-often-feel-better-about-life-than-renters-but-not-always-whether-you-are-mortgaged-matters-215147">original article</a>.

Home & Garden

The life-saving item no Grey Nomad should travel without

When General Practitioner Paul Kelly hung up his stethoscope after nearly 40 years of dedicated service, he had a retirement dream shared by many Australians – hitting the open road and exploring the world with his wife, Robyn. However, with a history of heart problems, he was understandably hesitant about venturing far from medical facilities. His concerns were put to rest when a groundbreaking device, <a href="https://cellaed.io/" target="_blank" rel="noopener">the CellAED personal defibrillator</a>, became available. Compact enough to fit in the glove box, this innovative device has opened up a world of possibilities for adventurers like Paul and Robyn. In Australia, a staggering 20,000 people suffer sudden cardiac arrests outside of hospitals each year. Sadly, only 10% of them survive. The introduction of CellAED, a handheld defibrillator, is changing these grim statistics by providing a lifeline to those in remote areas. Paul and Robyn are enthusiastic members of this country's growing community of grey nomads. According to ABS data, nearly 16 million caravan and camping trips were made last year, with the majority taken by individuals in the age group most at risk of cardiac arrest. Therefore, it's not surprising that an increasing number of travellers, like Paul, are arming themselves with a CellAED as they embark on adventures across the country. Paul attributes the device to giving him the peace of mind and confidence to travel far and wide. In the past year alone, he has spent over four months caravanning along the picturesque Murray River, explored the coastlines of New South Wales and Victoria, and even managed a European holiday to France. With no intention of slowing down, Paul's trusted travel companion, the handheld defibrillator, has granted him the freedom to explore the heart of Australia without constant worry. "Hopefully, we'll never have reason to use it," Paul says, "but it sure takes the stress out of wondering what we'd do in an emergency." The CellAED defibrillator was developed by the Australian startup, Rapid Response Revival. This groundbreaking device is a game-changer because it's more affordable, portable and easier to use than conventional Automated External Defibrillators (AEDs). Luke Starr, a spokesman for CellAED, emphasised the importance of addressing the issue of cardiac arrests in remote areas. He noted, "A key reason why so few survive sudden cardiac arrest is because help is too far away or too slow. CellAED was created to tackle that problem. "Travelling with a CellAED personal defibrillator isn't just about looking after yourself. It's about giving your traveling companions and the people you meet along the way a fighting chance if the unthinkable happens. Sudden cardiac arrest is survivable if it's witnessed by someone who knows what to do," Starr added. Starr further advised, "One of the best gifts you can give your travelling companions is learning how to recognise cardiac arrest and what to do if it happens. If someone has collapsed, is unresponsive, and isn't breathing normally, call emergency services, start CPR, and get a defibrillator onto their bare chest. If you can do this within the first couple of minutes of an arrest, you'll be giving the patient their best chances of survival." The CellAED invention aims to offer more people the opportunity to survive cardiac arrest without relying on sheer luck. With CPR training and a CellAED handy, individuals are prepared to save lives from cardiac arrest wherever they go. The groundbreaking invention comes after new research pointed towards alarming statistics about heart conditions in Australia, revealing that people living in regional, rural, or remote areas are 90% more likely to die from heart conditions caused by high blood pressure than their urban counterparts. The Heart of Inequality report from the Mary MacKillop Institute for Health Research (MMIHR) at ACU underscores the stark disparities in heart disease outcomes across Australia, particularly affecting regional and Indigenous communities. Key findings from the report include the continuous increase in the burden of chronic heart disease, with hundreds of thousands of hospital admissions for heart-related conditions among Australians aged 35 and over. Moreover, Indigenous Australians living in remote areas develop heart failure on average 20 years earlier than the general population. So, as Australians continue to explore this vast and varied country, lifesaving innovations like the CellAED defibrillator are playing an increasingly crucial role in ensuring the safety and well-being of adventurers, particularly those in remote areas. Images: CellAED

Travel Trouble

Does it matter what time of day I eat? And can intermittent fasting improve my health? Here’s what the science says

<a href="https://theconversation.com/profiles/frederic-gachon-1379094">Frederic Gachon</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/meltem-weger-1408599">Meltem Weger</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> Early hunter-gatherers faced long periods of fasting. Their <a href="https://pubmed.ncbi.nlm.nih.gov/35834774/">access to food</a> relied on successful hunting, fishing, and the availability of wild plants. Over time, the development of modern agriculture and the transition to industrialised societies <a href="https://pubmed.ncbi.nlm.nih.gov/35834774/">changed our regular eating patterns</a>, shifting our dinner time to later in the day to accommodate work schedules. Today, with access to an abundance of food, we rarely experience prolonged periods of fasting, except for weight loss or religious practices. It’s <a href="https://pubmed.ncbi.nlm.nih.gov/26411343/">now common</a> to have four or more meals a day, with the most calories consumed later in the day. Frequent snacking is also common, over a window of around 15 hours. However, research increasingly shows our health is not only affected by what and how much we eat, but also when we eat. So what does this mean for meal scheduling? And can intermittent fasting help? <h2>Our body clock controls more than our sleep</h2> Our internal biological timekeeper, or circadian clock, regulates many aspects of our physiology and behaviour. It tells us to be awake and active during the day, and <a href="https://theconversation.com/does-it-matter-what-time-i-go-to-bed-198146">rest and sleep</a> during the night. It can also tell us the best time to eat. Our body is biologically prepared to have food during the day. Food digestion, nutrient uptake and energy metabolism is optimised to occur when we’re supposed to be active and eating. Working against this default stage, by regularly eating when we’re supposed to sleep and fast, can compromise these processes and impact our health. <a href="https://pubmed.ncbi.nlm.nih.gov/31813351/">Erratic eating patterns</a>, including late-night meals, have been linked to <a href="https://pubmed.ncbi.nlm.nih.gov/36198293/">weight gain</a> and a greater risk of metabolic disease. Shift-workers, for example, and people who work evening, night or rotating shifts, have a <a href="https://theconversation.com/why-does-night-shift-increase-the-risk-of-cancer-diabetes-and-heart-disease-heres-what-we-know-so-far-190652">higher risk</a> of obesity, heart disease and diabetes. But adopting an eating pattern that aligns with our circadian rhythm can reduce these risks. <h2>So can intermittent fasting help?</h2> Nutritional interventions are increasingly focused not only on “what” we eat but also “when”. Intermittent fasting is one way to restrict the timing, rather than the content, of what we eat. There are <a href="https://pubmed.ncbi.nlm.nih.gov/35834774/">several types</a> of intermittent fasting, one of which is time-restricted eating. This means eating all our calories in a consistent 8-12 hour, or even shorter, interval each day. But is it backed by evidence? Most of what we know today about intermittent fasting and time-restricted eating is from <a href="https://pubmed.ncbi.nlm.nih.gov/35834774/">mouse studies</a>, which demonstrate remarkable weight loss and overall health benefits associated with these types of dietary interventions. However, some aspects of mouse physiology can be different to humans. Mice need to eat more frequently than humans and even a short period of fasting has a more significant physiological impact on mice. One day of fasting in mice leads to a 10% <a href="https://www.sciencedirect.com/science/article/pii/S2212877820301320">loss of body weight</a>, whereas humans would need to fast for 14 days to achieve <a href="https://pubmed.ncbi.nlm.nih.gov/30881957/">similar results</a>. This makes a direct translation from mice to humans more complicated. While health benefits of <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2623528">intermittent fasting</a> and <a href="https://www.nejm.org/doi/full/10.1056/NEJMoa2114833">time-restricted eating</a> have also been observed in humans, the findings in respect of weight loss are less clear. Current data suggest only modest, if any, weight loss in human participants who undergo these diet regimens when compared to calorie-restricted diets. Drawing <a href="https://pubmed.ncbi.nlm.nih.gov/35834774/">definitive conclusions</a> in humans may be more <a href="https://pubmed.ncbi.nlm.nih.gov/32480126/">difficult</a> because of the small sample sizes and individual differences in metabolism, variations in study design (such as the use of different protocols with varying times and duration of food restriction), and participants not complying with their instructions. <h2>Health benefits could be due to eating fewer calories</h2> Most studies describing the health benefits of <a href="https://pubmed.ncbi.nlm.nih.gov/33466692/#:%7E:text=and%20Future%20Perspectives-,Time%2DRestricted%20Eating%20and%20Metabolic%20Syndrome%3A%20Current%20Status%20and%20Future,doi%3A%2010.3390%2Fnu13010221.">time restricted eating</a> or <a href="https://pubmed.ncbi.nlm.nih.gov/27569118/">intermittent fasting</a> also found these diets were accompanied by calorie restriction: reducing the time of food access implicitly leads people to eat less. Studies that controlled calorie intake did not detect any more benefits of intermittent fasting than <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2623528">calorie restriction</a> alone. The weight loss and health benefits observed with intermittent fasting is likely attributed due to the resultant reduction in <a href="https://pubmed.ncbi.nlm.nih.gov/34135111/">calorie intake</a>. <a href="https://pubmed.ncbi.nlm.nih.gov/32986097/">Similar findings</a> have been reported for time-restricted eating. <h2>Benefit of following our body clock</h2> Nevertheless, time-restricted eating offers additional health benefits in humans, such as improved glucose metabolism and blood pressure, even without differences in calorie intake, in particular when restricted to the <a href="https://pubmed.ncbi.nlm.nih.gov/29754952/">earlier part of the day</a> (that is, when having a six-hour eating window with dinner before 3pm). Restricting food intake to the daytime for shift-workers <a href="https://pubmed.ncbi.nlm.nih.gov/28635334/">can alleviate</a> metabolic differences caused by shift-work, whereas this effect is not observed when food intake is restricted to <a href="https://www.science.org/doi/10.1126/sciadv.abg9910">nighttime</a>. One idea is that consuming food early, in alignment with our circadian rhythm, helps to <a href="https://pubmed.ncbi.nlm.nih.gov/28578930/">synchronise our circadian clock</a>. This restores the rhythm of our autonomous nervous system, which regulates essential functions such as breathing and heart rate, to keep our physiology “tuned”, as it was shown <a href="https://www.pnas.org/doi/10.1073/pnas.2015873118">in mice</a>. While there’s much still to learn from research in this field, the evidence suggests that to maintain a healthy weight and overall wellbeing, aim for regular, nutritious meals during the day, while avoiding late-night eating and frequent snacking.<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/203762/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/frederic-gachon-1379094">Frederic Gachon</a>, Associate Professor, Physiology of Circadian Rhythms, Institute for Molecular Bioscience, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> and <a href="https://theconversation.com/profiles/meltem-weger-1408599">Meltem Weger</a>, Postdoctoral Research Fellow, Institute for Molecular Bioscience, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a> Image credits: Getty Images 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/does-it-matter-what-time-of-day-i-eat-and-can-intermittent-fasting-improve-my-health-heres-what-the-science-says-203762">original article</a>.

Body

Should GPs bring up a patient’s weight in consultations about other matters? We asked 5 experts

<a href="https://theconversation.com/au/team#fron-jackson-webb">Fron Jackson-Webb</a>, <a href="http://www.theconversation.com/">The Conversation</a> Australian of the Year and body positivity advocate Taryn Brumfitt has <a href="https://www.smh.com.au/healthcare/doctors-should-avoid-discussing-patient-s-weight-australian-of-the-year-says-20230707-p5dmhv.html">called for</a> doctors to avoid discussing a patient’s weight when they seek care for unrelated matters. A 15-minute consultation isn’t long enough to provide support to change behaviours, Brumfitt says, and GPs don’t have enough training and expertise to have these complex discussions. “Many people in larger bodies tell us they have gone to the doctor with something like a sore knee, and come out with a ‘prescription’ for a very restrictive diet, and no ongoing support,” Brumfitt <a href="https://www.smh.com.au/healthcare/doctors-should-avoid-discussing-patient-s-weight-australian-of-the-year-says-20230707-p5dmhv.html">told the Nine newspapers</a>. By raising the issue of weight, Brumfitt says, GPs also risk turning patients off seeking care for other health concerns. So should GPs bring up a patient’s weight in consultations about other matters? We asked 5 experts. Brett Montgomery - GP academic Yes, sometimes – but with great care. I agree that weight stigma is damaging, and insensitively raising weight in consultations can <a href="https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0251566" target="_blank" rel="noopener">hurt people's feelings and create barriers</a>to other aspects of health care. I also agree people can sometimes be “overweight” yet <a href="https://journals.plos.org/plosone/article?id=10.1371%2Fjournal.pone.0287218" target="_blank" rel="noopener">quite healthy</a>, and that common measures and categories of weight are <a href="https://theconversation.com/bmi-alone-will-no-longer-be-treated-as-the-go-to-measure-for-weight-management-an-obesity-medicine-physician-explains-the-seismic-shift-taking-place-208174">questionable</a>. On the other hand, I know obesity <a href="https://www.racgp.org.au/FSDEDEV/media/documents/RACGP/Position%20statements/Obesity-prevention-and-management.pdf" target="_blank" rel="noopener">is associated with</a> heart disease, joint problems, diabetes and cancers. GPs should be ready to help people with their weight when they want help. <a href="https://www.bmj.com/content/377/bmj-2021-069719.full?ijkey=FnARkmvxLOMFvlb&keytype=ref">Our assistance somewhat effective</a>, though sadly dietary efforts often have minimal effect on weight in the long term. Meanwhile, treatments causing larger weight changes (<a href="https://insightplus.mja.com.au/2021/10/bariatric-surgery-public-system-access-still-terrible/">surgery</a> and <a href="https://www.nature.com/articles/s41366-022-01176-2">some medicines</a> are often financially inaccessible. I feel safe discussing weight when my patient raises the issue. Fearing hurting people, I often avoid raising it myself. I focus instead on health rather than weight, discussing physical activity and healthy diet – these are good things for people of any size. Emma Beckett - Nutrition scientist No. It’s not likely to succeed. Large systematic reviews bringing together multiple studies of multiple weight-loss diets show weight loss is not generally maintained long term (<a href="https://pubmed.ncbi.nlm.nih.gov/32238384/">12 months</a> to <a href="https://www.nature.com/articles/0802982">four years</a>). The idea that weight is about willpower is outdated. The current body of evidence <a href="https://theconversation.com/whats-the-weight-set-point-and-why-does-it-make-it-so-hard-to-keep-weight-off-195724">suggests</a> we each have a weight set point that our body defends. This is determined by genetics and environment more so than education. There may be associations between weight and health outcomes, but losing weight <a href="https://theconversation.com/just-because-youre-thin-doesnt-mean-youre-healthy-101185">does not necessarily equate</a> with improving health. Fat stigma and fatphobia are <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2866597/">harmful too</a> and can <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4381543/">compromise access to health care</a>. Instead, consider asking a better question. Healthy eating reduces disease risk <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3935663/">regardless of weight</a>. So maybe ask how many vegetables are your patients eating. Would they like to see a dietitian to discuss strategies for a better-quality diet? Liz Sturgiss - GP/researcher No. A <a href="https://pubmed.ncbi.nlm.nih.gov/33211585/">US study</a> estimates it would take a family doctor 131% of their work hours to implement all preventive health-care recommendations. It's impossible to address every recommendation for preventative care at every consultation. One of the key skills of a GP is balancing the patient and doctor agenda. <a href="https://www.obesityevidencehub.org.au/collections/treatment/weight-bias-and-stigma-in-health-care">Weight stigma</a> can deter people from seeking health care, so raising weight when a patient doesn't have it on their agenda can be harmful. A strong <a href="https://academic.oup.com/fampra/article/38/5/644/6244494?login=false">therapeutic relationship</a> is critical for safe and effective health care to address weight. Weight is always on my agenda when there is unexpected weight loss. If a patient has rapid weight loss, I am concerned about an undetected <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7283307/">cancer</a> or infection. Additionally, I am increasingly seeing patients who are unable to afford food, who often have <a href="https://www.aihw.gov.au/reports/dental-oral-health/oral-health-and-dental-care-in-australia/contents/introduction">poor oral health</a>, who lose weight due to <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/1747-0080.12580">poverty</a>. Weight loss for the wrong reasons is also a very concerning part of general practice. Nick Fuller - Obesity researcher Yes. GPs should play a role in the early detection of weight issues and direct patients to evidence-based care to slow this progression. <a href="https://pubmed.ncbi.nlm.nih.gov/31032548/">Research</a> shows many people with obesity are motivated to lose weight (48%). <a href="https://pubmed.ncbi.nlm.nih.gov/31032548/">Most</a> want their clinician to initiate a conversation about weight management and treatment options. However, this conversation <a href="https://pubmed.ncbi.nlm.nih.gov/32385580/">rarely occurs</a>, resulting in <a href="https://pubmed.ncbi.nlm.nih.gov/33621413/">significant delays to treatment</a>. Starting the conversation presents challenges. Although obesity is a complex disease related to multiple factors, it's still <a href="https://pubmed.ncbi.nlm.nih.gov/25752756/">highly stigmatised</a>in our society and even in the <a href="https://pubmed.ncbi.nlm.nih.gov/23144885/">clinical setting</a>. Sensitivity is required and the wording the clinician uses is important to make the patient feel safe and avoid placing blame on them. Patients often <a href="https://pubmed.ncbi.nlm.nih.gov/20823355/">prefer terms</a> such as “weight” and “BMI” (body mass index) over “fatness,” “size” or “obesity”, <a href="https://pubmed.ncbi.nlm.nih.gov/27354290/">particularly women</a>. Measuring weight, height and waist circumference should be <a href="https://pubmed.ncbi.nlm.nih.gov/33621413/">considered routine in primary care</a>. But this needs to be done without judgement, and in collaboration with the patient. Helen Truby - Nutrition scientist Yes. A high body weight contributes to many chronic conditions that negatively impact the <a href="https://www.aihw.gov.au/australias-health/summaries">quality of life and mental health</a> of millions of Australians. Not all GPs feel confident having weight conversations, given the sensitive nature of weight and its stigma. GPs' words matter – they are a <a href="https://doi.org/10.1111/nbu.12320">trusted source</a> of health information. It’s critical GPs gain the skills to know when and how to have <a href="https://doi.org/10.1186/s12875-019-1026-4">positive weight conversations</a>. GPs need to offer supportive and affordable solutions. But effective specialist weight management programs are few and far between. More equitable access to programs is essential so GPs have referral pathways after conversations about weight. GPs' time is valuable. Activating this critical workforce is essential to meet the <a href="https://www.health.gov.au/resources/publications/national-obesity-strategy-2022-2032?language=en">National Obesity Strategy.</a> <a href="https://theconversation.com/au/team#fron-jackson-webb">Fron Jackson-Webb</a>, Deputy Editor and Senior Health Editor, <a href="http://www.theconversation.com/">The Conversation</a> Image credits: Getty Images 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/should-gps-bring-up-a-patients-weight-in-consultations-about-other-matters-we-asked-5-experts-209681">original article</a>.

Body

Embrace grey hair with our simple healthy hair tips

While in the past going grey may have been seen as a negative of the ageing process, today women are embracing this as a stamp of wisdom. And why not? It’s en vogue and can look really attractive too. Thank goodness the days of “having” to hide your natural colour are gone! But just because you’re going natural, doesn’t mean there’s no effort involved. Knowing how to care for and style your grey locks is key and can make all the difference between “stylish and sixty-plus” and “stuffy and sixty-plus”. Read on for our top tips and tricks for healthy, happy hair. Focus on your cut – A great cut is essential for any hair colour but especially for grey hair. Chances are good that you may have been dyeing your hair in the months/years leading up to embracing grey… so a decent chop may increase the health and vitality of your locks. Speak to your hairdresser about a style that suits both your face shape and lifestyle. Swap your shampoo – Grey hair is far more prone to breakage and can also become quite dry and coarse. Ensuring that you’re using a moisturising shampoo at every wash can help keep strands in good condition. Condition well – If you’ve been wary of conditioner in the past due to your hair being on the oily side, now is the time to become friendly again. Conditioning with a moisturising formula is essential after every shampoo. If you’re still nervous about hair becoming oily, you can try a shampoo for “normal” hair, which will nourish without weighing hair down. Treat yourself to an at-home treatment – Once a fortnight, treat your hair with a shampoo specifically formulated for grey hair. After washing and conditioning, apply a clear colour glaze or gloss which is designed to coat the cuticle, boosting shine and general vitality. Take care when styling – As it’s prone to dryness and breakage, applying a thermal protectant to your hair before heat styling is a great way to prevent damage from occurring. Simply comb through hair and style as normal. It’s also a good idea to try and have a day or two off a week from using your hairdryer/hot implements to give hair a good break. Images: Getty

Beauty & Style

10 best tips for gracefully growing out grey hair

<h2>Pro tips that make going grey so much better</h2> There’s no avoiding it. At some point, you will have to deal with grey hair. Of course, how you deal with it is up to you. Some women start growing out grey hair as soon as it begins to appear. Others begin their journey by pulling out greys and then spend years dyeing it before deciding it’s too much of a hassle to do the constant cover-up. Even if you’ve found the <a href="https://www.readersdigest.com.au/healthsmart/beauty/how-to-find-the-best-hair-colour-for-your-skin-tone" target="_blank" rel="noopener">best hair colour for your skin tone</a>, having to touch up your roots every four to six weeks can get old. No matter what your path is, going grey isn’t for the faint of heart. “Many women find it challenging to grow out grey hair,” says hairstylist Krysta Biancone. “This is because it usually occurs gradually, so the transition from natural hair colour to grey hair is not easy.” But it’s not all doom and gloom when it comes to going grey. In fact, it can be incredibly empowering, liberating and downright gorgeous when you make it to the finish line, and it can even make you look younger. But first, there are a few things you need to know. We asked top hairstylists around the country to divulge their best tips for making this transition as easy as possible. <h2>Add highlights</h2> It might sound counterintuitive, but adding subtle colour can make the transition to grey more seamless. “When you first decide you’re nearly ready to go natural, a step in the right direction would be to start going lighter. That way, the roots grow in a little more gracefully,” says hair stylist and colourist, Kali Ferrara. “This can be done easily by a skilled colourist, with a lighter base colour in conjunction with highlights.” One word of warning: steer clear of warmer colours like reds and strawberry blondes when growing out grey hair. Ferrara says these hues could backfire and show even more contrast with your roots. <h2>Go a little darker</h2> On the flip side, you could choose lowlights. But instead of adding a shade that’s slightly darker (which is normally what you’d do with lowlights), try to match your non-grey hair colour. This will help blend without adding a brand-new shade to the mix. “Lowlights create some contrast and will give hair a more salt-and-pepper look that can be very becoming,” says celebrity hairstylist Gina Rivera. Just be sure not to go darker than your hair colour, says Rivera. Doing so can create too much contrast and bring more attention to the fact that you are transitioning to grey, which won’t look good in photos or in real life. <h2>Chop it off</h2> Ready for a big change? Ferrara recommends growing your roots as long as you possibly can and then getting a super-short haircut to get rid of all the leftover colour. How short you go is totally up to you. A pixie cut can be chic and low-maintenance, but if you’ve never had short hair, that could be too big of a change. A short bob looks good on just about anyone, so that may be your best bet, though a stylist will be able to help you determine just how short will be flattering for your face shape. In general, slimmer faces tend to look great with hair that hits just under the jawbone, while fuller faces may want to go slightly longer (think a few centimetres below the jaw). “While this can be a dramatic change, it can also be just the new look you may be looking for!” Ferrara says. “Think of your natural hair colour as a new adventure – a new, liberated you.” <h2>Cover roots as they grow in</h2> If you’re growing out grey hair but your roots are driving you nuts, there are a few ways you can hide them. One easy solution is to cover them with a headband, hat or chic scarf. Another option is root spray or powder. “These products can mask the roots very effectively,” says master stylist Lorrene Conino. “Just spray the exposed areas after you style your hair.” Just shake the bottle well, hold it about 15 centimetres from your roots and spritz it on. These products offer instant coverage on grey hair without an expensive trip to the salon. <h2>Don’t slack on trims</h2> If you can’t bring yourself to do a big cut, regular haircuts (even little ones!) can help make the process go faster too. Aim for a trim every six to eight weeks. This will help you get rid of split ends and maintain healthy hair during your growing-out period, says hairstylist Nia Jones. After all, she explains, you may as well keep your hair looking as good as possible as you go through this tricky transition. Another bonus? Even if you aren’t getting a drastic cut, snipping a bit each time will get rid of old colour. <h2>Prevent brassiness</h2> As more and more grey starts growing in, make sure those strands look as good as possible. Although grey hair is less vibrant than hair of other colours, it still can become dull and uneven if not properly cared for. Sun exposure, washing hair with water that has a high mineral content, and improper hair care are just a few reasons grey locks can turn brassy. Luckily, there’s a quick fix: using shampoo and conditioner designed specifically for silver or white hair can help tone down brassiness by balancing out the warm undertones, says Biancone. You can also include purple toning products into your maintenance routine. Why purple? To understand how a purple product works, you need to know a bit about colour theory. Essentially, on the colour wheel, purple is opposite of yellow. This means that purple shampoo or toner helps to neutralise unwanted yellow or brassy tones that can come along with greys. Try adding toning drops to your shampoo or conditioner once a week to keep your hair the colour you want it. Taking this small precaution when caring for grey hair can help create luscious-looking locks with longevity. <h2>Go big on moisture</h2> The texture of grey hair is quite different from the hair of your youth. George Papanikolas, a celebrity hairstylist, explains that it’s typically more coarse, frizzy and dehydrated. To combat this, he recommends arming your strands with moisturising products that will keep it silky and shiny. <h2>Don’t try to remove hair dye on your own</h2> Let’s say you’ve been dying your hair to cover up those greys but wish you hadn’t. Well, even if you’ve just been using root touch-up kits as new greys grow in, you should never try to lift or remove hair dye on your own. “Chemicals are typically used to remove colour, and you need to know what you are doing,” warns Rivera. “If you don’t, you could end up really damaging your hair.” If this is a route you’re intent on exploring instead of waiting for the colour to grow out, book an appointment with a professional. Just be aware that removing hair dye is tricky and often takes multiple appointments. For an easier, much gentler option, try using a clarifying shampoo to lighten the dye on your strands, says Jones. These shampoos are formulated to remove excess buildup and give you a deep clean, but they may also help wash away some colour. Just don’t use them more than once a week. These products give hair a deep clean, and using them too often can strip your strands of natural oils that add hydration. <h2>Experiment with new styles</h2> Whether you’re trying to cover up the grey or want to embrace it, Jones suggests playing with different styles outside of the boundaries of your everyday look – ie, a ponytail, a different part that flatters your face shape or a brushed-back style that ‘hides’ roots. Changing things up allows you to play with your style, and it also makes growing out grey hair look cool and intentional. Who says blondes have all the fun?! This article originally appeared on <a href="https://www.readersdigest.com.au/healthsmart/beauty/10-best-tips-for-gracefully-growing-out-grey-hair" target="_blank" rel="noopener">Reader's Digest</a>. Images: Getty

Beauty & Style

Unlocking the Silver Revolution: The Truth About Grey Hair and the Empowering Journey to Embrace the Grey

In a recent poll by midlife connection organisation, Connected Women reveals that two-thirds of women over the age of 50 haven’t embraced their grey hair (67%). With hair starting to go grey in our 30s and 40s, that’s a long time to hide those pesky greys! What causes grey hair? According to Harvard Health, hair doesn’t ‘turn’ grey. Once a strand of hair is a particular colour, it will stay that way unless it is dyed. After the age of 35, hair follicles produce less colour, so when that strand of hair falls out it will be more likely to grow back grey. Can stress cause grey hair? There is very little evidence to indicate that this is true, however, research shows that in mice, in response to a fight or flight situation, hair follicles are impacted and the pigmentation-producing stem cells can be lost. Without stem cells available to produce pigment cells, the hair will go grey. So, can we now legitimately blame our grey hairs on our kids, or our husbands. What happens when you pluck your grey hairs out? Don’t do it! Not only will it simply grow back grey, but according to Trey Gillen, hairstylist and creative director of education at SACHAJUAN, doing so can also traumatise the follicles which could mean NO hair grows back. When is the right time to go grey? This is something that only you can decide. If your hair is dark brown or black, your greys will be more noticeable, so you’ll need to have regular (two to four weekly) trips to the hairdresser to cover them up. At some point you will most likely grow weary of trying to stem the tide and it will be time to just embrace the grey. You will know when you’ve had enough! If you have lighter hair, then your greys will be much less noticeable. Lighter hair gives you a much longer window between coloring appointments in the initial stages of going grey, and later you can use the greys as ‘herringbone highlights’ as per Sarah Jessica Parker’s beautiful mane, which is wonderful way to gracefully embrace going grey. <img src="https://oversixtydev.blob.core.windows.net/media/2023/05/Phoebe-headshot-EDITED.jpg" alt="" width="1280" height="720" /> <span style="box-sizing: border-box; font-weight: bolder; color: #212529; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji'; font-size: 16px; background-color: #ffffff;">Phoebe Adams is the founder of Connected Women, an organisation providing a community for women over 50 to connect with each other and build meaningful friendships. With a rapidly growing community in Perth, Sydney, Wollongong, and Melbourne, Connected Women provides a safe and welcoming space for women to come together and share experiences. To learn more about the organisation and how you can get involved, visit <a style="box-sizing: border-box; color: #258440; text-decoration-line: none; background-color: transparent; transition: all 0.2s ease-in-out 0s;" href="https://www.connectedwomen.net/" target="_blank" rel="noopener">connectedwomen.net</a>. <span style="box-sizing: border-box; font-weight: bolder; color: #212529; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol', 'Noto Color Emoji'; font-size: 16px; background-color: #ffffff;">Image credits: Getty Images

Beauty & Style

The legal matters you need to consider as you get older

Barbara Binland is the pen name of a senior, Julie Grenness, in Melbourne, Victoria, Australia. She is a poet, writer, and part-time English and Maths tutor, with over 40 years of experience. Her many books are available on Amazon and Kindle. As we are ageing, it is essential at some stage to be realistic and sort our legal affairs. This incorporates writing your last will and testament. It is an individual’s choice whether to use a will kit, or to engage a solicitor. We must decide on an executor of the will, to ensure any assets are disposed of, in accordance with our intentions. Secondly, it is an excellent idea to appoint a medical power of attorney to a trusted person, to factor in a case scenario if you are on life support. Someone needs a medical power of attorney to make tough decisions on your behalf. Thirdly, when writing your will, you need to list your beneficiaries. Moreover, you need to compile a file of your assets and investments. Furthermore, it is also a good intention to prepare any wishes for your funeral, burial or cremation. Do you wish to be an organ donor? Ultimately, if any doubts occur, it is always possible and feasible to seek advice from any legal professionals. Right, having done all that, it’s easy to think, “all sorted!” But remember, any golden oldie’s status can be affected by any change in circumstance, such as either health conditions, or by marriage, or divorce, or the death of a spouse. Then we may need to revise our will and testament. But, in the interim, put morbid thoughts to one side, that is all ‘worst case scenario’. Now we can plan for our happy and leisurely retirement, enjoying being ‘golden oldies’, anyway we choose! Here are the stats: 10/10 people are going to die, so appreciate being alive! Rise and smile! Image credit: Shutterstock

Legal

I’ve indulged over the holidays. If I’m healthy the rest of the time, does it matter?

The holidays are often called the “silly season” – a time when we eat, drink and be merry. But these holiday indulgences can lead to feelings of guilt and fear that we’ve undone all the healthy habits from the rest of the year. But how much do you really need to worry about the impacts of holiday overeating? <h2>Yes, weight gain can happen in the holidays</h2> There are <a href="https://pubmed.ncbi.nlm.nih.gov/31953670/">studies</a> that show weight gain can and does occur in the silly season. But on average it’s not as dramatic as diet culture would have us believe, coming in at about 0.7kg. However, because humans are complex and varied, and nutrition science is hard, there are studies with varied findings. Some show that despite significant increases in <a href="https://pubmed.ncbi.nlm.nih.gov/32203107/">overall energy intake</a> and <a href="https://pubmed.ncbi.nlm.nih.gov/27618574/">reductions in diet quality</a>, <a href="https://digitalcommons.usu.edu/cgi/viewcontent.cgi?article=1300&context=etd">weight gain doesn’t occur</a>. Importantly, much of this research comes from the northern hemisphere where the major holidays coincide with winter. And these studies focus on weight, not health. Weight is just a marker that’s convenient to measure, but <a href="https://nutritionj.biomedcentral.com/articles/10.1186/1475-2891-10-9">health is more complicated</a>. <h2>Food is not just fuel</h2> Food isn’t just energy and nutrients. It’s a big part of our cultures and celebrations, and contributes to <a href="https://www.tandfonline.com/doi/abs/10.1300/J140v06n04_04?casa_token=B88qy23WbRMAAAAA:HbizzLaYk_SDbucI00WWrJ1krwp5lZFgJjDpFBs6CkbkEXHEbfVhPfbH9uUooPh0z5ay3vLkKRJ-di8">social, cultural and emotional wellbeing</a>. While it’s harder to study, nourishing our souls with foods that connect us to our loved ones and our traditions is just as important as the role food plays in nourishing our bodies. Holiday feasts are also an opportunity to share meals. Sharing meals <a href="https://link.springer.com/article/10.1007/s40750-017-0061-4">contributes to our emotional wellbeing and happiness</a>. <h2>Say hello to homeostasis</h2> <a href="https://www.britannica.com/science/homeostasis">Homeostasis</a> is a scientific term that describes how systems self-regulate. The word comes from the ancient Greek words for “similar” and “steady”. In living things it means that biology can adapt to changes to keep things in their normal constant state. Essentially, our body is always making little constant biological changes to help things stay the same. This is how we regulate things like our body temperature, blood sugar, blood pressure and other systems important for survival. The principles of homeostasis also apply to our <a href="https://www.frontiersin.org/articles/10.3389/fphys.2021.658997/full">eating and metabolism</a>. If we eat more for one or two holiday feast days (or even weeks) our biology works to minimise the impacts. This is also why losing weight on restrictive diets can be hard – homeostasis means as we reduce our energy intake our bodies adjust to using less energy. So for most people, discrete periods of indulgence aren’t likely to be the major determinants of health outcomes. It’s more likely the patterns we follow most of the time will influence our long term health. <h2>It’s about balance</h2> Biology and social norms both mean restrictive diets are <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7538029/">hard to maintain long-term</a>. Some people are <a href="https://www.sciencedirect.com/science/article/abs/pii/S0148296321002940">more successful</a> in maintaining a balanced diet when indulging is allowed. And now science has helped you to relax a little, a few words of caution. <h2>Drink in moderation</h2> Over-consumption of alcohol can cause <a href="https://www.cdc.gov/alcohol/fact-sheets/alcohol-use.htm#:%7E:text=Over%20time%2C%20excessive%20alcohol%20use,liver%20disease%2C%20and%20digestive%20problems.&text=Cancer%20of%20the%20breast%2C%20mouth,liver%2C%20colon%2C%20and%20rectum.">increased risk for chronic diseases</a>. Excess alcohol consumption in the festive period increases the risk of alcohol-related harm, <a href="https://www.vichealth.vic.gov.au/-/media/ResourceCentre/PublicationsandResources/alcohol-misuse/Drinking-cultures-social-occasions-Factsheet_public-holiday.pdf?la=en&hash=6C43A7F27769C7016FBBC0C1AA35CA3FC74A7A0C">including accidents and violence</a>. Staying hydrated by alternating with non-alcoholic beverages helps reduce how much you drink and how bad a hangover is, but it won’t eliminate the risks. <h2>Food safety risks</h2> Festive eating, with sharing, travelling and over-crowded fridges increases our <a href="https://www.cdc.gov/foodsafety/communication/holidays.html">risks of food poisoning</a>. Summer holidays also bring the added risk of heat. You want to share food and joy, not germs, so remember your <a href="https://www.betterhealth.vic.gov.au/health/healthyliving/food-poisoning-prevention">basic food safety rules</a> like hand washing, avoiding cross contamination of uncooked meats and other foods, storing food chilled, and heating thoroughly. It’s also a good idea to make sure you talk to your guests or hosts about food allergens to make sure everyone has a safe holiday feast. <h2>The bottom line</h2> What we eat is a big part of determining our health, but adding a side serving of guilt to your festive feast isn’t healthy either. For true healthy choices, focus on balance and moderation for the bulk of the year and for most of your choices, but social and cultural eating is part of balance. Enjoying your celebration foods doesn’t need to mean throwing away all your healthy habits, but healthy eating and healthy indulgence can co-exist if we let it. Image credits: Getty Images This article originally appeared on <a href="https://theconversation.com/ive-indulged-over-the-holidays-if-im-healthy-the-rest-of-the-time-does-it-matter-195643" target="_blank" rel="noopener">The Conversation</a>.

Body

Australia is investigating whether ex-defence personnel provided military training to China. Would it matter if they did?

Deputy Prime Minister and Minister for Defence Richard Marles <a href="https://www.minister.defence.gov.au/statements/2022-11-09/statement-efforts-recruit-former-adf-pilots" target="_blank" rel="noopener">announced</a> he had directed the Department of Defence to investigate reports “that ex-Australian Defence Force personnel may have been approached to provide military related training to China”. This announcement comes just weeks after the British Ministry of Defence <a href="https://www.smh.com.au/politics/federal/top-guns-for-hire-british-pilots-training-chinese-military-slammed-as-morally-repugnant-20221019-p5bqvx.html" target="_blank" rel="noopener">revealed</a> around 30 of their former military pilots had been delivering flight training services to members of China’s People’s Liberation Army (PLA) through a company based in South Africa. Marles has <a href="https://www.minister.defence.gov.au/transcripts/2022-11-09/press-conference-parliament-house" target="_blank" rel="noopener">committed</a> to conducting a <blockquote> detailed examination [of] the policies and procedures that apply to our former Defence personnel, and particularly those who come into possession of our nation’s secrets. </blockquote> He explained there’s a “clear and unambiguous” obligation on current and former Commonwealth officials to “maintain [government] secrets beyond their employment with, or their engagement with, the Commonwealth”. Australia’s highly trained defence personnel are a huge asset to us, as much as our cutting-edge physical assets and technologies. As far as possible, we should ensure these assets are protected. There should also be clear guidelines around how and when privileged information can be employed. <h2>Impending investigation</h2> According to Britain’s Minister for Armed Forces and Veterans James Heappey, their authorities had <a href="https://www.smh.com.au/politics/federal/top-guns-for-hire-british-pilots-training-chinese-military-slammed-as-morally-repugnant-20221019-p5bqvx.html" target="_blank" rel="noopener">been aware of the situation for several years</a>. None of the pilots had broken existing British law. The BBC <a href="https://www.bbc.com/news/uk-63293582" target="_blank" rel="noopener">reported</a> the British government issued this “<a href="https://www.theguardian.com/uk-news/2022/oct/18/uk-officials-threat-alert-china-attempts-to-recruit-raf-pilots" target="_blank" rel="noopener">threat alert</a>” to deter other would-be trainers from taking up similar offers. There’s also an updated National Security Bill currently before the House of Commons, which seeks to “create additional tools” to address security challenges like this one. By comparison, it’s unclear whether any ex-Australian Defence Force (ADF) personnel took up Chinese offers to train the PLA, or whether such an action would be considered a violation of the secrecy of information provisions of the Australian Criminal Code. Marles <a href="https://www.minister.defence.gov.au/transcripts/2022-11-09/press-conference-parliament-house" target="_blank" rel="noopener">explained</a> the Counter Foreign Interference Taskforce is “currently investigating a number of cases” identified by the department’s initial inquiries. This investigation will also seek to determine whether current policies and procedures are fit for purpose when it comes to former defence personnel and the protection of official secrets. Taking such measures has bipartisan support. Opposition Leader Peter Dutton <a href="https://www.skynews.com.au/australia-news/politics/peter-dutton-calls-on-albanese-government-to-tighten-up-laws-to-prevent-adf-personnel-spreading-australian-secrets/news-story/37ee6dc4c585922f7abf98edcc51b7b6" target="_blank" rel="noopener">has indicated</a> “if there is a hole in the legislation now, the Coalition will support a change which will tighten it up”. He added that Australia “can’t allow our secrets and our methodologies to be handed over to another country, and particularly not China under President Xi”. <h2>Exposing our tactics</h2> Dutton’s comments highlight an important distinction: while the training of PLA (or any foreign) pilots by ex-ADF personnel may not necessarily constitute a disclosure of official secrets, it still risks exposing the ways in which the ADF is trained to fight to a potential adversary – what are referred to as its tactics, techniques and procedures. There are many exchange personnel from overseas embedded in the ADF (and vice versa). But given the sensitivities involved, these positions are typically restricted to close partners such as the United States, United Kingdom, New Zealand or Canada. One of the benefits of close cooperation between militaries is that they can then operate more effectively alongside each other in the event of a conflict. But if ex-ADF personnel train the armed forces of potential adversaries, those opponents may be able to use this knowledge to better develop methods of their own to erode Australia’s military advantages. Professor <a href="https://twitter.com/alessionaval/status/1582232133086892032" target="_blank" rel="noopener">Alessio Patalano</a> of King’s College London points out that <blockquote> skilled personnel are valued capabilities and this know-how is a national security resource, and for the same reason a potential vulnerability. </blockquote> He further <a href="https://twitter.com/alessionaval/status/1582230651834548224" target="_blank" rel="noopener">explained</a> the “reverse engineering of professional skills” has a long historical tradition. That is, personnel undergoing this training would improve their skills, but could also work backwards from the instruction they receive to draw further insights into how the other state might operate in the event of war. For example, in the so-called “<a href="https://www.usni.org/magazines/naval-history-magazine/2019/december/jump-starting-japanese-naval-aviation" target="_blank" rel="noopener">Sempill Mission</a>” of British aviators to Japan in the 1920s, British personnel provided detailed instruction to their Japanese counterparts on how to conduct and train for aircraft carrier operations – at the time a brand new and rapidly emerging form of naval warfare. This training mission contributed significantly to the Imperial Japanese Navy’s prowess in aircraft carrier operations displayed in 1941. While foreign governments and intelligence services are always looking for opportunities to obtain classified information about Australia and its partners, the converse is also true. The Daily Express <a href="https://www.express.co.uk/news/world/1686465/RAF-news-china-uk-nato-raf-pilots-british-security-agencies" target="_blank" rel="noopener">claimed</a> British intelligence services used their knowledge of these recent activities as an opportunity for some pilots to obtain information on the current state of the PLA. The pilots allegedly had first-hand experience flying China’s frontline combat aircraft, and relayed the information to British authorities on their return. <h2>Protecting our assets</h2> Nevertheless, despite the “clear and unambiguous” obligation for former Commonwealth officials “to maintain [Australia’s] secrets”, ex-ADF personnel have been engaged in training foreign militaries for many years. In an interview with the ABC, former Secretary of Defence Dennis Richardson noted his <a href="https://www.abc.net.au/news/2022-11-09/ex-defence-secretary-dennis-richardson-adf-members-china/101635972" target="_blank" rel="noopener">surprise</a> “at some of the positions that some former ADF officers have occupied in other countries” and expressed his hope the government’s review “goes beyond China”. The most prominent of these figures is <a href="https://www.abc.net.au/news/2016-01-14/former-australian-soldiers-caught-up-in-yemen-civil-war/7087566" target="_blank" rel="noopener">Major General (Ret’d) Mike Hindmarsh</a>, a former Commander of Australia’s Special Operations Command who was subsequently appointed as the Commander of the United Arab Emirates’ Presidential Guard. Australia already has <a href="https://www.defence.gov.au/business-industry/export/controls/export-controls/export" target="_blank" rel="noopener">export control</a> regulations, which limits the physical export and intangible transfer of controlled military and dual-use goods and technologies. Also, stringent <a href="https://www.afr.com/work-and-careers/education/o-neil-alters-ministerial-sign-off-for-postgrad-students-20220630-p5axwq" target="_blank" rel="noopener">limitations</a> on international students undertaking postgraduate research in Australia on critical technologies were legislated in the last Parliament. However, these measures aren’t being currently being implemented until the government can more clearly define the relevant list of critical technologies. This article originally appeared on <a href="https://theconversation.com/australia-is-investigating-whether-ex-defence-personnel-provided-military-training-to-china-would-it-matter-if-they-did-194252" target="_blank" rel="noopener">The Conversation</a>.

Travel Trouble

Explainer: Why does hair turn grey?

For many people, grey hair is a fact of life. It’s a sign that we are getting older and that our bodies are going through change. To understand why hair turns grey, we first need to understand why it has colour in the first place. The answer is a special type of cell known as a melanocyte. These produce melanin, the pigment that gives your skin, hair and eyes their distinctive colours. Melanin comes in two forms, eumelanin (black or brown) and pheomelanin (reddish-yellow). Combinations of these two create the spectrum of eye, hair and skin colours found among humans. One way to understand how melanocytes determine hair colour is to think of these cells as tiny printers, applying their ink to paper. The paper in this case is our hair strands, formed of keratin, the same protein that makes up our fingernails. Just as a printer sprays ink onto a sheet of paper to produce an image, melanocytes produce pigments that are embedded into the growing hair strand, providing them with colour. The melanocytes live within the hair follicle, so each hair strand has its own colour-producing printer. While some people’s melanocytes print a lighter ink combination, such as blonde or red, others have darker colour palletes and so have black or brown colourations. Now that we understand how hair gets its colour, we can understand why it goes grey. In hair, grey is not a colouration like any other shade: it is the lack of colouring. The keratin of people with grey hair lacks pigment because their melanocytes have died, revealing the natural grey-white colour of the keratin protein. Because each hair strand has its own melanocytes, some go grey before others. Exactly what decides which strands go grey first is still unknown. However, age, exposure to chemicals and even the climate can influence how early the melanocytes die. The strongest influence, however, is written in our genes. The genetic influence on hair colour is so strong that if your parents have grey hair, yours is likely to grey at around the same time as theirs did. Image credits: Getty Images  <img id="cosmos-post-tracker" style="opacity: 0; height: 1px!important; width: 1px!important; border: 0!important; position: absolute!important; z-index: -1!important;" src="https://syndication.cosmosmagazine.com/?id=19408&title=Explainer%3A+Why+does+hair+turn+grey%3F" width="1" height="1" />  <div id="contributors"> This article was originally published on <a href="https://cosmosmagazine.com/science/biology/explainer-why-does-hair-turn-grey/" target="_blank" rel="noopener">cosmosmagazine.com</a> and was written by Jake Port. </div>

Beauty & Style

Glute force: why big, strong bum muscles matter for your overall health

The glutes are the large, powerful muscles in your bum that help support the pelvis, stabilise the hip joint and allow the hip to move. Countless social media posts extol the virtues of building strong glutes through exercises such as squats. However, most of what you hear from such “gymfluencers” is about how the bum muscles look. Forget about how they look; what about what they do? Why is having big, strong glutes important for your body to function well? In fact, having strong bum muscles is crucial to good musculoskeletal health. <h2>Bum muscles hold your body up and protect the hip joint</h2> The gluteal muscles are a group of three separate muscles, each with unique anatomical structure and function. The deepest and smallest muscle is called the gluteus minimus, which is very close to the hip joint itself. Overlaying gluteus minimus is the gluteus medius. This one is relatively large and spans the whole outer surface of the pelvis. The gluteus maximus is the largest of the three gluteal muscles and <a href="https://pubmed.ncbi.nlm.nih.gov/19449297/" target="_blank" rel="noopener">overlays</a> both gluteus medius and minimus. This muscle is what gives the the bum its distinctive bum-like shape, but it plays a very important role in the way your body functions. In combination, the gluteus maximus, medius and minimus gives rise to many hip movements, and provide shock absorption when you’re walking or running. These muscles work together with your brain to generate a lot of power to hold your body up as gravity tries to pull it down. They also protect the hip joint from impact and from shearing forces that might cause long term damage. Some of <a href="https://onlinelibrary.wiley.com/doi/10.1002/ca.23510">our</a> <a href="https://www.sciencedirect.com/science/article/pii/S1063458418315127?via%3Dihub">work</a> has identified some people with hip pain also have impairments in the gluteal muscles. These impairments could reduce the bum muscles’ ability to protect the joint against long term damage and potentially affect a person’s ability to bear weight (for example, when standing on one leg or climbing stairs). A reduction in muscle size and an increase in non-active tissue such as fat has been <a href="https://pubmed.ncbi.nlm.nih.gov/31689358/" target="_blank" rel="noopener">reported</a> in hip conditions such as greater trochanteric pain syndrome (a common type of hip pain, also known as gluteal tendinopathy). The same is also true for <a href="https://www.oarsijournal.com/article/S1063-4584(16)30064-4/fulltext" target="_blank" rel="noopener">hip osteoarthritis</a>, which affects the whole joint. The rates of osteoarthritis in Australia are <a href="https://doi.org/10.1111/imj.15933" target="_blank" rel="noopener">increasing</a>, with <a href="https://aoj.amegroups.com/article/view/3664/4322" target="_blank" rel="noopener">one in every seven</a> hip joint replacements conducted in people under the age of 55. However, it’s worth noting just because you have signs of arthritis on hip x-ray or MRI, it doesn’t mean you will have pain or <a href="https://www.sciencedirect.com/science/article/pii/S1063458420312310?via%3Dihub" target="_blank" rel="noopener">develop</a> <a href="https://bmjopensem.bmj.com/content/7/4/e001199" target="_blank" rel="noopener">pain</a>. Research <a href="https://pubmed.ncbi.nlm.nih.gov/29439949/" target="_blank" rel="noopener">suggests</a> the way a person moves may contribute to the risk of hip osteoarthritis in young people. If you do have hip pain, bum muscle strengthening is <a href="https://www.racgp.org.au/download/Documents/Guidelines/Musculoskeletal/guideline-for-the-management-of-knee-and-hip-oa-2nd-edition.pdf" target="_blank" rel="noopener">recommended</a> as the first line treatment. But strong glutes have also been shown to improve your day-to-day function, especially in those with hip osteoarthritis. In particular, people with hip osteoarthritis who have stronger glutes walk faster and longer <a href="https://onlinelibrary.wiley.com/doi/10.1002/jor.1100150421" target="_blank" rel="noopener">distances</a> and climb stairs <a href="https://onlinelibrary.wiley.com/doi/epdf/10.1002/acr.22329" target="_blank" rel="noopener">faster</a> than those with weaker glutes. <h2>Should I do my bum exercises?</h2> Ultimately, better bum muscle function is likely to be helpful and is often recommended by doctors, physiotherapists and other health-care practitioners. They may prescribe certain exercises to strengthen your glutes and target problems around the hip area. Having weak glutes is associated with: <ul> <li> <a href="https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/s12891-019-2833-4" target="_blank" rel="noopener">low back pain</a> </li> <li> <a href="https://pubmed.ncbi.nlm.nih.gov/18838402/" target="_blank" rel="noopener">patellofemoral</a> pain (pain under the knee cap) and </li> <li> greater <a href="https://www.sciencedirect.com/science/article/pii/S1050641117300111?via%3Dihu" target="_blank" rel="noopener">trochanteric pain syndrome</a> (the common type of hip pain we mentioned earlier, also known as gluteal tendinopathy). </li> </ul> Glute strength may even have a role to play in keeping your <a href="https://journals.lww.com/jwhpt/Abstract/2021/07000/Hip_and_Pelvic_Floor_Muscle_Strength_in_Women_With.5.aspx" target="_blank" rel="noopener">pelvic floor</a> in good shape (although further research is required). That’s not to say doing your bum exercises will automatically cure all these ailments; each case is unique and involves a range of factors. But having strong glutes is, in general, very important for hip and pelvis stability and function. No matter if you are a gymfluencer, a professional sports person, or just a regular bum-owner, having strong glutes will keep you in good stride. This article originally appeared on <a href="https://theconversation.com/glute-force-why-big-strong-bum-muscles-matter-for-your-overall-health-190978" target="_blank" rel="noopener">The Conversation</a>. Image: Shutterstock

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Democracy spreads in waves – but shared cultural history might matter more than geography

Recent events like the war in Ukraine, conflicts over Taiwan and the rise of authoritarian ideology have renewed interest in the foundations of modern democracy. They have raised questions about why some nations are more democratic than others, and how democratic institutions, freedoms and values are spread or lost. We tend to think of this variation in terms of geography – democratic Western Europe or autocratic Middle East. But in a <a href="https://www.cambridge.org/core/journals/evolutionary-human-sciences/article/shared-cultural-ancestry-predicts-the-global-diffusion-of-democracy/90C7A170B924FC305DD66FF8853799FC" target="_blank" rel="noopener">new analysis of 220 years of political data</a>, we show that deep cultural connections between countries such as shared linguistic or religious ancestry matter more than geography. <h2>Waves of democratisation</h2> The emergence of modern democracy coincides with the rise of nation states in Europe at the beginning of the 19th century. Democracy spread across European nations and their colonies, over <a href="https://en.wikipedia.org/wiki/The_Third_Wave:_Democratization_in_the_Late_Twentieth_Century" target="_blank" rel="noopener">three waves</a>. The first wave lasted about a century, from 1828 to 1926, halting after the first world war. A second, rapid wave (1945-1962) followed the second world war and decolonisation. The third wave began in 1974 and continues today. It encompassed political transitions and new countries in Europe, Latin America and the Pacific. Each wave was followed by a period of reversals when nations turned to autocratic regimes, junta or fascism. Indeed, some researchers speculate we are heading into <a href="https://www.tandfonline.com/doi/full/10.1080/13510347.2019.1582029" target="_blank" rel="noopener">another period of reversal</a>. <h2>What drives modern democracy?</h2> Scholars traditionally considered factors internal to a country – economic growth, rates of education or the natural environment – as the drivers of these waves. However, the geographic clustering of democracy and the wave-like pattern of expansion suggest the process may also involve a kind of contagion where democracy passes from one nation to another. One explanation for this is that democratic change spreads across borders, so that neighbouring countries end up with similar levels of democracy. Culture provides another explanation. Neighbouring countries tend to share a common cultural heritage, such as related languages or religions. This shapes national institutions, norms and values. In our research, we tested the idea that common cultural ancestry explains variation and change in democracy around the globe. We brought together 220 years of democracy data with information on the cultural relationships between nations. The cultural relationships we examined were based on languages and religious beliefs. For example, Portugal is linguistically closer to Spanish-speaking Argentina and Spain than to England and Germany (which speak Germanic languages). Likewise, Myanmar, a Theravada Buddhist country, is religiously closer to Mongolia (where Vajrayana Buddhism is predominant) than to Muslim Malaysia. <h2>Culture is more important than geography</h2> The democracy data we studied cover 269 modern and historical nations and three widely-used democracy indicators, measuring democratic and autocratic authority in governing institutions (<a href="https://www.systemicpeace.org/polityproject.html" target="_blank" rel="noopener">Polity 5</a>), electoral participation and competition (<a href="https://www.prio.org/data/20" target="_blank" rel="noopener">Vanhanen Index</a>) and individual rights and freedoms (<a href="https://freedomhouse.org/" target="_blank" rel="noopener">Freedom House</a>). Across all three indicators of democracy, we found countries that share linguistic or religious ancestry tend to have more similar democracy scores. These shared cultural ties were better predictors of democracy than geography, especially during the third wave of democratisation. Knowing the democratic status of a country’s linguistic or religious relatives helps predict that country’s future level of democracy five, ten or even 20 years later. These effects were not just due to countries sharing a language (for example, the English-speaking world) or religion (such as the Sunni Islam majority countries). This suggests deeper cultural connections between countries are important. <h2>What this means for the spread of democracy</h2> These effects could be the result of a number of processes. One possibility is that countries directly inherited institutions along the same pathways they inherited cultural features like language. For instance, Aotearoa New Zealand and other Commonwealth countries inherited the British legal system along with the English language. Another possibility is that cultural similarities might make countries more likely to maintain ongoing social connections, including foreign relations, which then aid the spread of institutions. For example, the <a href="https://theconversation.com/how-the-arab-spring-changed-the-middle-east-and-north-africa-forever-161394" target="_blank" rel="noopener">Arab Spring</a> spread among a set of countries with common linguistic and religious heritage. A third possibility is that inherited cultural values could steer countries towards similar institutions. For example, <a href="https://www.nature.com/articles/s41562-019-0769-1" target="_blank" rel="noopener">in previous research</a> we found that tolerance of diversity (cosmopolitan values) promotes a shift to more democratic institutions, but the reverse is not true. Democratic institutions do not shift tolerance. Countries that have inherited cosmopolitan values as part of their shared cultural ancestry may be more likely to shift towards democracy. If this theory is correct, it calls into question the assumption that democratic institutions can endure without sustained efforts to promote the cultural values that support them. The US interventions in Afghanistan and Iraq may be tragic examples of this. Our findings indicate cultural history matters for understanding the spread of democracy around the globe. This does not mean culture is the only factor at play (our analyses still leave a lot of variation unexplained). Neither do our findings speak to a population’s ultimate potential to achieve democratic outcomes, but we see this as within the reach of all populations. This means those wishing to support democracy at home or abroad should take cultural barriers seriously. We cannot assume that institutions that work well in one cultural setting can be easily transplanted to another, very different setting, with different values, norms and traditions. We should pay more attention to culturally closely related countries that have succeeded at merging local norms and values with democratic institutions. This article originally appeared on <a href="https://theconversation.com/democracy-spreads-in-waves-but-shared-cultural-history-might-matter-more-than-geography-189959" target="_blank" rel="noopener">The Conversation</a>. Image: Shutterstock

Legal

Why the size of your glasses matters

It can be frustrating when you’ve picked up your news glasses only to find the frame presses against your head or the glasses keep slipping down your nose. Getting the right pair of glasses isn’t just about the right prescription, finding a comfortable frame is also key to enjoying relaxed and (almost) perfect vision. So if you’ve ever suffered buyer’s remorse after a glasses purchase, here are the tips to follow so you always get the perfect fit for your new glasses. The lens In general, the thinner and lighter the lens, the more comfortable the spectacles will be to wear. If possible, choose a thinner lens so your glasses won’t feel as heavy on the nose and ears. The nose bridge As one of the few points of contact with your face, it’s important to carefully consider the comfort of the glasses’ nose bridge. You want the nose pads to sit solidly on your nose, otherwise they can quickly lose their grip and keep sliding down. The sides The sides of your spectacles shouldn’t press into your temples. Some people mistakenly believe pressure means the glasses fit properly, but there should never be any heaviness felt on the temples. You might feel some pressure behind the ear, but that’s ok as this keeps the weight of the glasses from being borne wholly by your nose. The frame As a general rule, when you look through your glasses it should be at the middle of the lens. The top of the frame should sit below the eyebrows but above the fold of the eye and the frame should not be much wider than your face. Image: Getty Images

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