Search

I’m feeling run down. Why am I more likely to get sick? And how can I boost my immune system?

<div class="theconversation-article-body"> <a href="https://theconversation.com/profiles/sathana-dushyanthen-1169328">Sathana Dushyanthen</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> It has been a long winter, filled with many viruses and cost-of-living pressures, on top of the usual mix of work, study, life admin and caring responsibilities. Stress is an inevitable part of life. In short bursts, our stress response has evolved as a survival mechanism to help us be more alert in <a href="https://theconversation.com/no-you-cant-blame-all-your-health-issues-on-high-cortisol-heres-how-the-hormone-works-203162">fight or flight situations</a>. But when stress is chronic, it weakens the immune system and makes us more vulnerable to illnesses such as the <a href="https://www.healthline.com/health/can-stress-make-you-sick#:%7E:text=The%20common%20cold&text=Inflammation%20has%20been%20linked%20to,to%20the%20cold%2Dcausing%20germs.">common cold</a>, <a href="https://journals.lww.com/psychosomaticmedicine/abstract/1999/03000/psychological_stress,_cytokine_production,_and.9.aspx">flu</a> and <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/smi.3017">COVID</a>. <h2>Stress makes it harder to fight off viruses</h2> When the immune system starts to break down, a virus that would normally have been under control starts to flourish. Once you begin to feel sick, the <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4465119/">stress response</a> rises, making it harder for the immune system to fight off the disease. You may be sick more often and for longer periods of time, without enough immune cells primed and ready to <a href="https://link.springer.com/chapter/10.1007/978-3-030-16996-1_6">fight</a>. In the 1990s, American psychology professor Sheldon Cohen and his colleagues conducted a number of <a href="https://www.cmu.edu/common-cold-project/">studies</a> where healthy people were exposed to an upper respiratory infection, through drops of virus placed directly into their <a href="https://www.nejm.org/doi/full/10.1056/NEJM199108293250903">nose</a>. These participants were then quarantined in a hotel and monitored closely to determine who became <a href="https://theconversation.com/stress-less-it-might-protect-you-from-covid-153361">ill</a>. One of the most important factors predicting who got sick was prolonged psychological <a href="https://journals.sagepub.com/doi/full/10.1177/1745691620942516">stress</a>. <h2>Cortisol suppresses immunity</h2> “Short-term stress” is stress that lasts for a period of minutes to hours, while “chronic stress” persists for several hours per day for <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5964013/#:%7E:text=Therefore%2C%20a%20major%20distinguishing%20characteristic,weeks%20or%20months%20%5B9%5D.">weeks or months</a>. When faced with a perceived threat, psychological or physical, the hypothalamus region of the brain sets off an alarm system. This signals the release of a surge of hormones, including adrenaline and <a href="https://www.embopress.org/doi/full/10.15252/msb.20209510">cortisol</a>. <figure class="align-center "><img src="https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=472&fit=crop&dpr=1 600w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=472&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=472&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=593&fit=crop&dpr=1 754w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=593&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/616892/original/file-20240903-18-blrqoz.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=593&fit=crop&dpr=3 2262w" alt="Human brain illustration" /><figcaption>The hypothalamus sets off an alarm system in response to a real or perceived threat. <a class="source" href="https://www.shutterstock.com/image-illustration/hypothalamus-causes-vasoconstriction-illustration-medical-brain-435142264">stefan3andrei/Shutterstock</a></figcaption></figure> In a typical stress response, <a href="https://www.sciencedirect.com/science/article/abs/pii/S147149060300173X">cortisol levels</a> quickly increase when stress occurs, and then rapidly drop back to normal once the stress has subsided. In the short term, cortisol suppresses inflammation, to ensure the body has enough energy available to respond to an <a href="https://www.frontiersin.org/journals/immunology/articles/10.3389/fimmu.2019.00245/full">immediate threat</a>. But in the longer term, chronic stress can be harmful. A Harvard University study <a href="https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2796097">from 2022</a> showed that people suffering from psychological distress in the lead up to their COVID infection had a greater chance of experiencing long COVID. They <a href="https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2796097">classified</a> this distress as depression, probable anxiety, perceived stress, worry about COVID and loneliness. Those suffering distress had close to a <a href="https://jamanetwork.com/journals/jamapsychiatry/fullarticle/2796097">50% greater risk</a> of long COVID compared to other <a href="https://theconversation.com/being-stressed-out-before-you-get-covid-increases-your-chances-of-long-covid-heres-why-190649">participants</a>. Cortisol has been shown to be high in the most severe cases of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7102614/">COVID</a>. <h2>Stress causes inflammation</h2> <a href="https://stories.uq.edu.au/imb/the-edge/inflammation/what-is-inflammation/index.html">Inflammation</a> is a short-term reaction to an injury or infection. It is responsible for trafficking immune cells in your body so the right cells are present in the right locations at the right times and at the right <a href="https://link.springer.com/article/10.1007/s12026-014-8517-0">levels</a>. The immune cells also store a memory of that threat to respond faster and more effectively the next <a href="https://theconversation.com/being-stressed-out-before-you-get-covid-increases-your-chances-of-long-covid-heres-why-190649">time</a>. Initially, circulating immune cells detect and flock to the site of <a href="https://www.nature.com/articles/ni1275">infection</a>. Messenger proteins, known as pro-inflammatory cytokines, are released by immune cells, to signal the danger and recruit help, and our immune system responds to neutralise the <a href="https://stories.uq.edu.au/imb/the-edge/inflammation/what-is-inflammation/index.html">threat</a>. During this response to the infection, if the immune system produces too much of these inflammatory chemicals, it can trigger symptoms such as nasal congestion and runny <a href="https://journals.sagepub.com/doi/full/10.1177/1745691620942516">nose</a>. <h2>What about chronic stress?</h2> Chronic stress causes persistently high cortisol secretion, which remains high even in the absence of an immediate <a href="https://theconversation.com/no-you-cant-blame-all-your-health-issues-on-high-cortisol-heres-how-the-hormone-works-203162">stressor</a>. The immune system becomes desensitised and unresponsive to this <a href="https://www.sciencedirect.com/science/article/abs/pii/S1043661816307435">cortisol suppression</a>, increasing low-grade “silent” inflammation and the production of pro-inflammatory cytokines (the messenger proteins). Immune cells become exhausted and start to <a href="https://www.fxmedicine.com.au/blog-post/adrenal-immune-connection">malfunction</a>. The body loses the ability to turn down the inflammatory <a href="https://journals.sagepub.com/doi/full/10.1177/1745691620942516">response</a>. Over time, the immune system changes the way it responds by reprogramming to a “<a href="https://www.unimelb.edu.au/newsroom/news/2021/april/how-stress-can-stop-immune-cells-in-their-tracks">low surveillance mode</a>”. The immune system misses early opportunities to destroy threats, and the process of recovery can take <a href="https://theconversation.com/being-stressed-out-before-you-get-covid-increases-your-chances-of-long-covid-heres-why-190649">longer</a>. <h2>So how can you manage your stress?</h2> We can actively strengthen our immunity and natural defences by managing our <a href="https://theconversation.com/stuck-in-fight-or-flight-mode-5-ways-to-complete-the-stress-cycle-and-avoid-burnout-or-depression-218599">stress levels</a>. Rather than letting stress build up, try to address it early and frequently by: 1) Getting enough sleep Getting enough sleep reduces <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3132857/">cortisol levels</a> and inflammation. During sleep, the immune system <a href="https://link.springer.com/chapter/10.1007/978-1-4939-6578-6_12">releases</a> <a href="https://theconversation.com/sleep-wont-cure-the-coronavirus-but-it-can-help-our-bodies-fight-it-134674">cytokines</a>, which help fight infections and inflammation. 2) Taking regular exercise Exercising helps the lymphatic system (which balances bodily fluids as part of the immune system) circulate and allows immune cells to monitor for threats, while sweating flushes <a href="https://www.healthline.com/nutrition/does-exercise-boost-immune-system">toxins</a>. Physical activity also lowers stress hormone levels through the release of positive brain <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7387807/">signals</a>. 3) Eating a healthy diet Ensuring your diet contains enough nutrients – such as the B vitamins, and the full breadth of minerals like magnesium, iron and zinc – during times of stress has a positive impact on overall stress <a href="https://www.ncbi.nlm.nih.gov/pubmed/22782571">levels</a>. Staying hydrated helps the body to flush out <a href="https://theconversation.com/a-strong-immune-system-helps-ward-off-colds-and-flus-but-its-not-the-only-factor-99512">toxins</a>. 4) Socialising and practising meditation or mindfulness These activities increase endorphins and serotonin, which improve mood and have <a href="https://www.sciencedirect.com/science/article/pii/S2949834123000351">anti-inflammatory effects</a>. Breathing exercises and meditation stimulate the parasympathetic nervous system, which calms down our stress responses so we can “reset” and reduce <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4940234/">cortisol levels</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/237456/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/sathana-dushyanthen-1169328">Sathana Dushyanthen</a>, Academic Specialist & Lecturer in Cancer Sciences & Digital Health| Superstar of STEM| Science Communicator, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</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/im-feeling-run-down-why-am-i-more-likely-to-get-sick-and-how-can-i-boost-my-immune-system-237456">original article</a>. </div>

Body

New support system helps older Aussies who have fallen victim to scams

A new support system has been set up to help vulnerable older Australians who have fallen victim to dangerous scams. With millions of Aussies targeted every year, many of these targets are elderly with 30 percent of victims hesitant to come forward because they are too embarrassed to admit what's happened to them. One such victim, 86-year-old Mary, said she was humiliated after falling for a scam saying she is old enough to know better. "It serves me right, I shouldn't have been so trusting," she said. "You blame yourself and you don't really want to tell people how stupid you are, so you think, 'Well, I'll just have to bear it'." Mary was scammed when she received a call from a man pretending to be a technician, saying he needed access to her computer to resolve a problem in her area. Step by step, the "technician" got Mary to log-in and give him complete access to her entire online identification, completely cleaning her out of $20,000 in savings. This is why <a title="ID Support NSW" href="https://www.nsw.gov.au/id-support-nsw" target="_blank" rel="noopener">ID Support NSW</a> is now offering a free service to help older Australians be able to protect themselves online and spot suspicious activity. "The most common scams are romance and impersonation scams, where people pretend to be someone they're not," ID Support NSW's Jacqueline Wilson told <a href="https://9now.nine.com.au/today/scam-awareness-week-id-support-nsw-offering-free-help-for-older-australians/20d3f8d6-fe32-4b1d-af32-294e47f4412d" target="_blank" rel="noopener">Today</a>. "Most start with a text or call and once someone responds or engages, they usually end up losing money." Jacqueline said the best thing you could do if you even suspect a scammer was to just hang up the phone, saying, "You don't need to indulge them, you don't need to be polite, you don't need to engage in a long conversation." Image credits: Today

Legal

Australia’s tax system is being weaponised against victims of domestic abuse. Here’s how

<div class="theconversation-article-body"> <a href="https://theconversation.com/profiles/ann-kayis-kumar-466422">Ann Kayis-Kumar</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> When women seeking financial help from the government-funded UNSW <a href="https://www.unsw.edu.au/business/our-schools/accounting-auditing-taxation/about-us/unsw-clinic">Tax and Business Advisory Clinic</a> are asked whether they have ever been affected by family or domestic violence, most say they have. In the past year this number has grown from <a href="https://cdn.theconversation.com/static_files/files/3339/sub009.pdf?1718777706">65%</a> to over 80%. And about <a href="https://ssrn.com/abstract=4746954">14%</a> of the clinic’s clients say their tax debts are a result of intimate partner violence. These debts often arise from business debts, bankruptcy, corporate directorships and director penalty notices. We know that economic abuse is a red flag for other forms of domestic violence. Economic abuse occurs in nearly all Australian domestic and family violence cases, affecting more than <a href="https://www.abs.gov.au/statistics/people/crime-and-justice/personal-safety-australia/latest-release">2.4 million Australians</a> and costing the economy an estimated <a href="https://www.commbank.com.au/content/dam/caas/newsroom/docs/Cost%20of%20financial%20abuse%20in%20Australia.pdf">A$10.9 billion</a> a year. Unfortunately, existing laws fall well short of protecting abuse victim-survivors from financial loss. <h2>How violent partners weaponise tax</h2> The perpetrators of violence can effectively weaponise the tax system by placing tax debts solely in the names of former partners, often because they have made them directors of companies or through family businesses operating through partnerships or trusts. There is a policy assumption that family members benefit from family partnerships. But this does not always hold in practice and can be problematic when there is economic abuse because Australian tax law requires victims report and pay tax on their “share” of the family partnership’s income. The average tax debt at the tax clinic is about $90,000. This can result in debilitating financial burdens, exhausted savings, insecure housing and prolonged economic instability, well after abusive relationships end. <h2>Change is needed</h2> Australia has no specific strategy for relief of tax debts caused by financial abuse. There are “serious hardship” provisions in Australian taxation law, but these are outdated and in need of <a href="https://theconversation.com/sometimes-people-can-do-with-a-break-3-ways-tax-debt-relief-rules-are-too-tough-156948">reform</a>. Usually people do not have the funds up front so the only way the Australian Taxation Office can collect debts from the abused partner is through (generally two-year) payment plans, offsetting future tax refunds, engaging external debt collectors and initiating bankruptcy proceedings. To that end, the decision announced in this year’s budget to give the Tax Commissioner discretion <a href="https://www.ato.gov.au/about-ato/new-legislation/in-detail/businesses/changes-to-offsetting-debts-on-hold">not to offset</a> against tax returns debts previously placed “on hold” is welcome. It will provide short-term relief by enabling abuse victims to get their refunds instead of having it used by the Tax Office to reduce their debt. Colleagues Christine Speidel, Leslie Book and I want this power extended to all <a href="https://papers.ssrn.com/sol3/papers.cfm?abstract_id=4746954">forms of tax debts</a> not just for tax debts that have been placed “on hold” especially where the taxpayer is known to have experienced financial abuse. But this wouldn’t go far enough – the victim-survivors would still have the perpetrator’s tax debt hanging over them. Where this happens, financial instability can <a href="https://www.commbank.com.au/content/dam/commbank-assets/support/2021-01/unsw-report-key-findings.pdf">drive women back</a> into abusive relationships. <h2>The US shows what can be done</h2> Legislative reform to shift tax liability from abuse survivors to perpetrators is the key to helping solve the problem. <figure class="align-right zoomable"></figure> The United States has offered some form of “<a href="https://www.irs.gov/individuals/innocent-spouse-relief">innocent spouse relief</a>” since 1971. In 2011 it widened eligibility and <a href="https://www.irs.gov/pub/irs-news/ir-11-080.pdf">removed a two-year time limit</a> for requesting relief. It is important to understand the US provisions apply because the country offers jointly filed “married” tax returns. In Australia tax returns are filed by individuals. Australia’s laws would need to change to ensure abused women do not find themselves jointly liable. Any changes should also include debts incurred in the name of partnerships and company directors. The US is the first and only country to do this, largely because of the advocacy of US low-income tax clinics over decades. Australia now has such clinics, funded as part of the Tax Office <a href="https://www.ato.gov.au/individuals-and-families/financial-difficulties-and-disasters/support-to-lodge-and-pay/national-tax-clinic-program">National Tax Clinic Program</a>. Australia’s adoption of US-style rules could provide a model for other jurisdictions, increase tax debt collection (as perpetrators are likely to have better capacity to pay than victims) and foster greater confidence in the Tax Office. Most importantly, it would acknowledge that victim-survivors with tax debts should not bear responsibility for debts incurred by perpetrators. <hr /> For information and advice about family and intimate partner violence contact 1800 RESPECT (<a href="https://www.1800respect.org.au/">1800 737 732</a>). If you or someone you know is in immediate danger, contact 000. The Men’s Referral Service (<a href="https://ntv.org.au/get-help/">1300 766 491)</a> offers advice and counselling to men looking to change their behaviour.<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/232609/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/ann-kayis-kumar-466422">Ann Kayis-Kumar</a>, Founding Director of UNSW Tax and Business Advisory Clinic, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</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/australias-tax-system-is-being-weaponised-against-victims-of-domestic-abuse-heres-how-232609">original article</a>. </div>

Money & Banking

Our housing system is broken and the poorest Australians are being hardest hit

<div class="theconversation-article-body"> <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> Just when we think the price of rentals could not get any worse, this week’s <a href="https://www.anglicare.asn.au/publications/2023-rental-affordability-snapshot/">Rental Affordability Snapshot</a> by Anglicare has revealed low-income Australians are facing a housing crisis like never before. In fact, if you rely on the <a href="https://www.servicesaustralia.gov.au/youth-allowance">Youth Allowance</a>, there is not a single rental property across Australia you can afford this week. <h2>How did rental affordability get this bad?</h2> Several post-COVID factors have been blamed, including our preference for <a href="https://www.rba.gov.au/publications/bulletin/2023/jun/new-insights-into-the-rental-market.html">more space, the return of international migrants</a>, and <a href="https://www.corelogic.com.au/news-research/news/2023/could-the-peak-in-interest-rates-signal-an-end-to-rising-rents">rising interest rates</a>. However, the rental affordability crisis pre-dates COVID. Affordability has been steadily declining for decades, as successive governments have failed to make shelter more affordable for low-to-moderate income Australians. <h2>The market is getting squeezed at both ends</h2> At the lower end of the rental sector, the growth in the supply of social housing persistently lags behind demand, trending at under <a href="https://povertyandinequality.acoss.org.au/data/annual-growth-rates-social-housing-stock-and-population-2011-2020/">one-third</a> the rate of population growth. <hr /> <iframe id="OA0cS" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/OA0cS/" width="100%" height="400px" frameborder="0"></iframe> <hr /> This has forced growing numbers of low-income Australians to seek shelter in the private rental sector, where they face intense competition from higher-income renters. At the upper end, more and more aspiring home buyers are getting <a href="https://www.tandfonline.com/doi/full/10.1080/03085147.2021.2003086">locked out</a> of home ownership. A recent <a href="https://www.ahuri.edu.au/sites/default/files/documents/2024-02/AHURI-Final-Report-416-Affordable-private-rental-supply-and-demand-short-term-disruption.pdf">study</a> found more households with higher incomes are now renting. Households earning <a href="https://www.ahuri.edu.au/sites/default/files/documents/2024-02/AHURI-Final-Report-416-Affordable-private-rental-supply-and-demand-short-term-disruption.pdf">$140,000</a> a year or more (in 2021 dollars) accounted for just 8% of private renters in 1996. By 2021, this tripled to 24%. No doubt, this crowds out lower-income households who are now facing a shortage of affordable homes to rent. <h2>Why current policies are not working</h2> Worsening affordability in the private rental sector highlights a housing system that is broken. Current policies just aren’t working. While current policies focus on supply, more work is needed including fixing <a href="https://theconversation.com/governments-are-pouring-money-into-housing-but-materials-land-and-labour-are-still-in-short-supply-205471">labour shortages</a> and providing greater <a href="https://theconversation.com/people-want-and-need-more-housing-choice-its-about-time-governments-stood-up-to-deliver-it-122390">stock diversity</a>. The planning system plays a critical role and <a href="https://theconversation.com/confusing-and-not-delivering-enough-developers-and-councils-want-new-affordable-housing-rules-139762">zoning rules</a> can be reformed to support the supply of more affordable options. However, the housing affordability challenge is not solely a supply problem. There is also a need to respond to the <a href="https://theconversation.com/home-prices-are-climbing-alright-but-not-for-the-reason-you-might-think-158776">super-charged demand</a> in the property market. An overheated market will undoubtedly place intense pressure on the rental sector because aspiring first home buyers are forced to rent for longer, as house prices soar at a rate unmatched by their wages. Yet, governments continue to resist calls for winding back the <a href="https://www.abc.net.au/news/2024-02-15/ken-henry-australias-tax-system-in-worse-position-after-15-years/103465044">generous tax concessions</a> enjoyed by multi-property owners. The main help available to low-income private renters - the Commonwealth Rent Assistance scheme - is <a href="https://theconversation.com/1-billion-per-year-or-less-could-halve-rental-housing-stress-146397">poorly targeted</a> with nearly one in five low-income renters who are in rental stress deemed ineligible, while another one in four receive it despite not being in rental stress. <h2>Can affordable housing occur naturally?</h2> Some commentators support the theory of <a href="https://www.ahuri.edu.au/sites/default/files/documents/2022-09/Executive-Summary-FR387-Filtering-as-a-source-of-low-income-housing-in-Australia-conceptualisation-and-testing.pdf">filtering</a> - a market-based process by which the supply of new dwellings in more expensive segments creates additional supply of dwellings for low-income households as high-income earners vacate their former dwellings. Proponents of filtering argue building more housing anywhere - even in wealthier ends of the property market - will eventually improve affordability across the board because lower priced housing will trickle down to the poorest households. However, the persistent affordability crisis low-income households face and the rise in homelessness are crucial signs filtering <a href="https://cloud.3dissue.com/122325/122578/143598/WhyNewSupplyisnotExpandingHousingOptionsfortheHomeless/html5/index.html?page=1&noflash">does not work well</a> and <a href="https://www.ahuri.edu.au/sites/default/files/documents/2022-09/AHURI-Final-Report-387-Filtering-as-a-source-of-low-income-housing-in-Australia-conceptualisation-and-testing.pdf">cannot be relied upon</a> to produce lower cost housing. <h2>Location, location, location</h2> Location does matter, if we expect building new housing to work for low-income individuals. What is needed is a steady increase of affordable, quality housing in areas offering low-income renters the same access to jobs and amenities as higher-income households. The <a href="https://treasury.gov.au/housing-policy/accord#:%7E:text=The%20Accord%20includes%20an%20initial,5%20years%20from%20mid%E2%80%912024.">National Housing Accord</a> aims to deliver 1.2 million new dwellings over five years from mid-2024. But it must ensure these are “well-located” for people who need affordable housing, as suggested in the accord. Recent <a href="https://www.tandfonline.com/doi/full/10.1080/02673037.2023.229051">modelling</a> shows unaffordable housing and poor neighbourhoods both negatively affect mental health, reinforcing the need to provide both affordable and well-located housing. <h2>The upcoming budget</h2> While the <a href="https://www.dss.gov.au/sites/default/files/documents/05_2023/payments-cra_budget_fact_sheet_fa_0.pdf">15% increase</a> in the maximum rent assistance rate was welcomed in the last budget, the program is long overdue for a major restructure to target those in rental stress. Also, tax concessions on second properties should be wound back to reduce competition for those struggling to buy their first home. This would eventually help ease affordability pressures on low-income renters as more higher-income renters <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/1467-8454.12335">shift into homeownership</a>. The potential negative impacts on rental supply can be mitigated by careful design of tax and other changes that guard against market destabilisation concerns. Overall, housing affordability solutions have to be multi-faceted. The housing system is badly broken and meaningful repair cannot be achieved unless policymakers are willing to confront both supply and demand challenges.<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/228511/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> 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/our-housing-system-is-broken-and-the-poorest-australians-are-being-hardest-hit-228511">original article</a>. </div>

Money & Banking

“The system is too soft”: Ally Langdon fires up over stabbing death of Vyleen White

Ally Langdon has called for an overhaul of the youth crime system in the wake of the violent death of Queensland grandmother Vyleen White. The A Current Affair host was discussing the death of the 70-year-old, as she became visibly frustrated while talking about the rising rates of youth crime. Langdon hinted at a nationwide issue, citing the recent stabbing death of young doctor Ash Gordon in Melbourne, who was also allegedly murdered by a teenager less than a month ago. “Whatever we’re doing to deal with youth crime, it’s failing,” she said. “The police do everything they can, but the system is too soft on serious crime, and we have lost faith in it and our politicians.” <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/reel/C29TB0HvWGj/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/reel/C29TB0HvWGj/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by A Current Affair (@acurrentaffair9)</a> </div> </blockquote> Ms White’s daughter and widowed husband echoed Ally's sentiment thoughts on the program, saying, “Justice has to be done, not for my sake, for the memory of Vyleen.” “People want action and harsher laws for crimes they are committing,” her husband Victor said. “For several years (politicians) have been promising a lot, a lot of rubbish talk to the public out there, and nothing happens." “All you hear is increase of violence, car stealing … This is due to slackness in the law." “The law is weak as water.” Ms White’s daughter, Cindy Micallef said harsher penalties for youth crimes are needed. “Youth crime, I hate to say it, it’s like having a koala, it’s a protected species, there’s no action,” she said. “They do heinous crimes and it’s getting worse, I don’t care what nationality or race. “If we let people get away with this, it’s going to increase.” A 16-year-old boy was <a href="https://oversixty.com.au/finance/legal/update-on-tragic-stabbing-of-queensland-grandmother" target="_blank" rel="noopener">charged</a> with Ms White’s murder on Tuesday morning, and is also facing charges of unlawful use of a motor vehicle and stealing. Vyleen was <a href="https://www.oversixty.com.au/health/caring/grandmother-fatally-stabbed-in-front-of-granddaughter" target="_blank" rel="noopener">fatally stabbed</a> in the chest in Town Square Redbank Plains Shopping Centre’s underground carpark around 6pm on Saturday, while she was shopping with her granddaughter. Image credits: Facebook / A Current Affair

Legal

What happens to your vagina as you age?

<a href="https://theconversation.com/profiles/louie-ye-1465100">Louie Ye</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> and <a href="https://theconversation.com/profiles/martha-hickey-551323">Martha Hickey</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> The vagina is an internal organ with a complex ecosystem, influenced by circulating hormone levels which change during the menstrual cycle, pregnancy, breastfeeding and menopause. Around and after menopause, there are normal changes in the growth and function of vaginal cells, as well as the vagina’s microbiome (groups of bacteria living in the vagina). Many women won’t notice these changes. They don’t usually cause symptoms or concern, but if they do, symptoms can usually be managed. Here’s what happens to your vagina as you age, whether you notice or not. <h2>Let’s clear up the terminology</h2> We’re focusing on the <a href="https://www.ncbi.nlm.nih.gov/books/NBK545147/">vagina</a>, the muscular tube that goes from the external genitalia (the vulva), past the cervix, to the womb (uterus). Sometimes the word “vagina” is used to include the external genitalia. However, these are different organs and play different roles in women’s health. <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=428&fit=crop&dpr=1 600w, https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=428&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=428&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=538&fit=crop&dpr=1 754w, https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=538&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/565381/original/file-20231213-17-grlu25.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=538&fit=crop&dpr=3 2262w" alt="Diagram of female reproductive system including the vagina" /></a><figcaption>We’re talking about the internal organ, the vagina. <a class="source" href="https://www.shutterstock.com/image-illustration/female-reproductive-system-image-diagram-243154639">Suwin66/Shutterstock</a></figcaption></figure> <h2>What happens to the vagina as you age?</h2> Like many other organs in the body, the vagina is sensitive to female sex steroid hormones (hormones) that change around puberty, pregnancy and menopause. Menopause is associated with a drop in circulating oestrogen concentrations and the hormone progesterone is no longer produced. The changes in hormones affect the vagina and its ecosystem. <a href="https://www.ncbi.nlm.nih.gov/books/NBK564341/">Effects</a> may include: <ul> <li>less vaginal secretions, potentially leading to dryness</li> <li>less growth of vagina surface cells resulting in a thinned lining</li> <li>alteration to the support structure (connective tissue) around the vagina leading to less elasticity and more narrowing</li> <li>fewer blood vessels around the vagina, which <a href="https://pubmed.ncbi.nlm.nih.gov/2989746/">may explain</a> less blood flow after menopause</li> <li>a <a href="https://www.nature.com/articles/s41564-022-01083-2">shift</a> in the type and balance of bacteria, which can change vaginal acidity, from more acidic to more alkaline.</li> </ul> <h2>What symptoms can I expect?</h2> Many women do not notice any bothersome vaginal changes as they age. There’s also little evidence many of these changes cause vaginal symptoms. For example, there is no direct evidence these changes cause vaginal infection or bleeding in menopausal women. Some women notice vaginal dryness after menopause, which may be linked to less vaginal secretions. This may lead to pain and discomfort during sex. But it’s not clear how much of this dryness is due to menopause, as younger women also commonly report it. In <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6136974/pdf/nihms957122.pdf">one study</a>, 47% of sexually active postmenopausal women reported vaginal dryness, as did around 20% of premenopausal women. Other organs close to the vagina, such as the bladder and urethra, are also affected by the change in hormone levels after menopause. Some women experience recurrent urinary tract infections, which may cause pain (including pain to the side of the body) and irritation. So their symptoms are in fact not coming from the vagina itself but relate to changes in the urinary tract. <h2>Not everyone has the same experience</h2> Women vary in whether they notice vaginal changes and whether they <a href="https://www.flinders.edu.au/research/vitalmeno">are bothered</a> by these to the same extent. For example, women with vaginal dryness who are not sexually active may not notice the change in vaginal secretions after menopause. However, some women notice severe dryness that affects their daily function and activities. In fact, <a href="https://www.imsociety.org/2021/06/21/a-core-outcome-set-for-vasomotor-symptoms-associated-with-menopause-the-comma-core-outcomes-in-menopause-global-initiative/">researchers globally</a> are taking more notice of women’s experiences of menopause to inform future research. This includes prioritising symptoms that matter to women the most, such as vaginal dryness, discomfort, irritation and pain during sex. <h2>If symptoms bother you</h2> Symptoms such as dryness, irritation, or pain during sex can usually be effectively managed. Lubricants may reduce pain during sex. Vaginal moisturisers may reduce dryness. Both are available over-the-counter at your local pharmacy. While there are many small clinical trials of individual products, these studies <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8942543/">lack the power</a> to demonstrate if they are really effective in improving vaginal symptoms. In contrast, there is robust evidence that vaginal oestrogen is <a href="https://www.cochrane.org/CD001500/MENSTR_use-postmenopausal-women-creams-pessaries-or-vaginal-ring-apply-oestrogen-vaginally-symptoms-vaginal">effective</a> in treating vaginal dryness and reducing pain during sex. It also <a href="https://www.cochranelibrary.com/cdsr/doi/10.1002/14651858.CD005131.pub2/full">reduces</a> your chance of recurrent urinary tract infections. You can talk to your doctor about a prescription. Vaginal oestrogen is usually inserted using an applicator, two to three times a week. Very little is absorbed into the blood stream, it is <a href="https://pubmed.ncbi.nlm.nih.gov/31913230/">generally safe</a> but longer-term trials are required to confirm safety in long-term use beyond a year. Women with a <a href="https://www.menopause.org.au/hp/position-statements/the-use-of-vaginal-estrogen-in-women-with-a-history-of-estrogen-dependent-breast-cancer">history of breast cancer</a> should see their oncologist to discuss using oestrogen as it may not be suitable for them. <h2>Are there other treatments?</h2> New treatments for vaginal dryness are under investigation. One avenue relates to our growing understanding of how the vaginal microbiome adapts and modifies around changes in circulating and local concentrations of hormones. For example, a <a href="https://pubmed.ncbi.nlm.nih.gov/29381086">small number of reports</a> show that combining vaginal probiotics with low-dose vaginal oestrogen can improve vaginal symptoms. But more evidence is needed before this is recommended. <h2>Where to from here?</h2> The normal ageing process, as well as menopause, both affect the vagina as we age. Most women do not have troublesome vaginal symptoms during and after menopause, but for some, these may cause discomfort or distress. While hormonal treatments such as vaginal oestrogen are available, there is a pressing need for more non-hormonal treatments. <hr /> Dr Sianan Healy, from Women’s Health Victoria, contributed to this article.<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/212198/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/louie-ye-1465100">Louie Ye</a>, Clinical Fellow, Department of Obstetrics and Gynecology, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> and <a href="https://theconversation.com/profiles/martha-hickey-551323">Martha Hickey</a>, Professor of Obstetrics and Gynaecology, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</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/what-happens-to-your-vagina-as-you-age-212198">original article</a>.

Body

How does Australia’s health system stack up internationally? Not bad, if you’re willing to wait for it

<a href="https://theconversation.com/profiles/stephen-duckett-10730">Stephen Duckett</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> When things are going bad in the health system, we are reassured we’ve got one of the best health systems in the world. But we’re rarely told where we actually stand relative to others. A <a href="https://www.oecd.org/health/health-at-a-glance/">new report</a> from the Organisation for Economic Cooperation and Development (OECD) shows where Australia is doing relatively well – and not so well. The report is more than 200 pages with dozens of charts and tables. Here we highlight five charts showing Australia’s relative performance. Overall, Australia’s health system performs well, but can come after long waits. And our use of antibiotics is trending in the wrong direction. <h2>1. We spend less than average but live longer than average</h2> Despite the rhetoric about the unsustainability of the health system, Australia performs well. When mapping health expenditure against life expectancy, Australia (marked by the red dot) sits in the best performing quadrant – and has done so for the past decade. <iframe id="tc-infographic-996" class="tc-infographic" style="border: none;" src="https://cdn.theconversation.com/infographics/996/32f7548791bf05b7559d74976bfa0b955319adc5/site/index.html" width="100%" height="400px" frameborder="0"></iframe> In contrast, the United States is stuck in the worst performing quadrant for the whole period – significantly higher spending than other countries with worse life expectancy. The life expectancy measure is used here but it involves an implicit assumption that the principal impact on life expectancy is from the health system, which is not really the case. Nevertheless, it is a good measure of overall system performance and combined with spending provides a good measure. <h2>2. Most Australians rate their health as good or very good</h2> The vast majority of Australians (about 85%) rate their health as good or very good, with Australia performing better on this metric than most other similar countries. Often good health is conflated with good health care, and the data show that Australia also has more doctors per head than other countries. <iframe id="Ygo7Z" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/Ygo7Z/1/" width="100%" height="400px" frameborder="0"></iframe> The founding charter of the World Health Organization (WHO) recognised that health is not just the absence of disease, but a “<a href="https://www.who.int/about/accountability/governance/constitution">state of complete physical, mental and social well-being</a>”. This points to a flaw in the nexus between good health and more health professionals. The WHO focus on well-being helps to explain why it is not surprising that, looking across countries, the number of doctors doesn’t appear to be a key determinant of performance on self-rated health. <h2>3. It’s harder to get a bed in aged care</h2> About 30% of people in OECD countries are over 65, while the Australian proportion is about 20%. The proportion of over-65s is rising everywhere. A minority of older Australians (14%) use aged care, with most of these using home care. However, monitoring access to residential aged care (represented here by the number of long-term care beds per thousand population over 65) might act as a “canary in the coal mine”, highlighting where access problems exist. <iframe id="lBe4O" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/lBe4O/1/" width="100%" height="400px" frameborder="0"></iframe> In Australia, access to aged care beds is falling, by about 27% between 2011 and 2021. We started in the middle of the pack so this is a concern and probably contributes to more Australians being stuck in acute hospitals, rather than being in more appropriate accommodation in residential aged care. This “<a href="https://www.ama.com.au/articles/hospital-exit-block-symptom-sick-system">exit block</a>” in turn leads to problems of ambulance ramping. <h2>4. Australians wait too long for public hospital hip replacements</h2> Most publicly funded health systems are characterised by long waiting times for access to planned procedures such as hip replacements. Some waiting is to be expected as part of efficient management of operating theatre scheduling. But long waits, especially when the person is in pain, reflect poorly on management of the public hospital system. <iframe id="LNntD" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/LNntD/2/" width="100%" height="400px" frameborder="0"></iframe> The data shows that almost two-thirds of people waiting for hip replacement surgery in Australia waited more than three months. This is marginally worse than the OECD average. Unfortunately, our performance is deteriorating. A number of states, such as <a href="https://www.health.vic.gov.au/planned-surgery-reform-blueprint">Victoria</a>, have developed strategies to improve the performance of the planned procedure system, or have identified opportunities for <a href="https://www.sahealth.sa.gov.au/wps/wcm/connect/public+content/sa+health+internet/about+us/about+sa+health/reporting+and+advisory+groups/health+performance+council/health+performance+council+reports">efficiency improvements in public hospitals</a> which would help address this issue. Although it’s understandable that <a href="https://www.sciencedirect.com/science/article/pii/S2049080122011554">planned procedures were affected</a> by the first few years of the COVID pandemic, governments should have adapted their funding and provision systems to bring waiting times back to the pre-pandemic levels. <h2>5. Our use of antibiotics is going in the wrong direction</h2> Antibiotics have saved millions of lives. But public health experts have long recognised the emerging <a href="https://www.who.int/news-room/fact-sheets/detail/antimicrobial-resistance">problem of antimicrobial resistance</a>, where inappropriate use of these drugs can lead to their reduced effectiveness over time. Worldwide campaigns to promote appropriate use of antibiotics are bearing fruit and across the OECD, use of antibiotics is going down. Unfortunately, Australia’s trend is in the reverse direction. <iframe id="AK4GO" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/AK4GO/1/" width="100%" height="400px" frameborder="0"></iframe><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/218031/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/stephen-duckett-10730">Stephen Duckett</a>, Honorary Enterprise Professor, School of Population and Global Health, and Department of General Practice, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</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/how-does-australias-health-system-stack-up-internationally-not-bad-if-youre-willing-to-wait-for-it-218031">original article</a>.

Caring

Women and low-income earners miss out in a superannuation system most Australians think is unfair

<a href="https://theconversation.com/profiles/antonia-settle-1019551">Antonia Settle</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a> Most Australians think the superannuation system is unfair, with only one in three agreeing the retirement savings scheme is fair for most Australians, according to a survey conducted for the University of Melbourne. In fact, only about half of those <a href="https://melbourneinstitute.unimelb.edu.au/publications/research-insights/search/result?paper=4630688">surveyed</a> agreed superannuation works well for them. These results contradict a conventional view based on earlier studies and held by academics and many in the personal finance sector, that Australians give little thought to superannuation. A 2013 survey found Australians have <a href="https://search.informit.org/doi/abs/10.3316/INFORMIT.285049750322819">poor knowledge</a> of how the superannuation system works, while another study in 2022 highlighted <a href="https://melbourneinstitute.unimelb.edu.au/__data/assets/pdf_file/0011/4382057/HILDA_Statistical_Report_2022.pdf">low financial literacy</a> in general. Australians also showed <a href="https://behaviouraleconomics.pmc.gov.au/sites/default/files/projects/retirement-planning-saving-attitudes_0_0.pdf">little interest in superannuation</a>, according to a 2020 Department of Prime Minister and Cabinet survey, with few Australians showing interest in reading their superannuation statements, choosing their fund or making voluntary contributions. With Australian households seen as uninformed and uninterested, their opinions tend to be left out of the public debate. We hear much about the gender pension gap, for example, but little about what women actually think about superannuation. Similarly, the distribution of tax advantage in superannuation is hotly debated by economists but survey data tends to refrain from asking households what they think about equity in the superannuation system. The University of Melbourne survey of 1,003 Australians was undertaken by Roy Morgan Research in April. Its results show women and low-income households are widely seen as disadvantaged in the superannuation system. In fact, only one in five Australians see the superannuation system as well suited to the needs of women and of low-income households, while 70% believe super favours wealthy households. <iframe id="5VX3K" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/5VX3K/1/" width="100%" height="400px" frameborder="0"></iframe> This suggests although Australians may show little interest in the management of their super accounts and may report they find the system confusing or even <a href="https://www.professionalplanner.com.au/wp-content/uploads/2016/05/Attitudes-to-Super-Report-May-2016.pdf">boring</a>, they are surprisingly aware of how superannuation is distributed. <h2>Women, singles and low-income earners miss out</h2> The federal government’s 2020 <a href="https://treasury.gov.au/publication/p2020-100554">Retirement Income Review</a> documents these gaps. Renters, women, uncoupled households and those on low-incomes fare poorly in the retirement income system. With little super to supplement the public pension, these groups are vastly over-represented in elderly poverty statistics, which are among the <a href="https://www.oecd-ilibrary.org/sites/d76e4fad-en/index.html?itemId=/content/component/d76e4fad-en">highest in the OECD</a>. Mirroring the gaps in the superannuation system reported by the review, the University of Melbourne survey shows that it is outright homeowners and those who are married who believe the superannuation system works well. Concerns the system works poorly for women and low-income households are strongest among women and low-income households. Only one in three renters believe the superannuation system meets their needs. <iframe id="N9GO6" class="tc-infographic-datawrapper" style="border: none;" src="https://datawrapper.dwcdn.net/N9GO6/1/" width="100%" height="400px" frameborder="0"></iframe> This suggests individuals’ concerns about fairness in the superannuation system are driven by their own experiences of disadvantage, regardless of financial literacy. This is consistent with my own <a href="https://www.tandfonline.com/doi/full/10.1080/13563467.2023.2195159">research</a> into household attitudes to superannuation, which showed some resentment among women who were well aware their male partners had substantially higher superannuation balances than them. This all matters for policymakers. <h2>Why public perceptions are important</h2> In the short term, these results suggest public support for making super fairer is likely to be stronger than previously thought. Recent government changes to tax concessions on large balances, for example, could have gone much further without losing support from the 70% of households that think the system favours the wealthy. But it matters for the longer term too. Public perceptions of fairness, effectiveness and efficiency are crucial to policy sustainability. This is well established in the academic literature from <a href="https://onlinelibrary.wiley.com/doi/full/10.1111/spol.12683">B Ebbinghaus</a>, 2021 and <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/1911-3838.12171">H Chung et al.</a>, and accepted by the Retirement Income Review. The review assessed the public’s confidence in the system to both “deliver an adequate retirement income for them(selves) and (to) generate adequate outcomes across society”. As the review makes clear, the system must avoid a loss of public confidence from perceptions of unfairness. Yet perceptions of unfairness are exactly what the University of Melbourne results suggest. This would have been clearer to policymakers if they asked earlier.<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/207633/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/antonia-settle-1019551">Antonia Settle</a>, Academic (McKenzie Postdoctoral Research Fellow), <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</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/women-and-low-income-earners-miss-out-in-a-superannuation-system-most-australians-think-is-unfair-207633">original article</a>.

Retirement Income

The $500 million ATO fraud highlights flaws in the myGov ID system. Here’s how to keep your data safe

<a href="https://theconversation.com/profiles/rob-nicholls-91073">Rob Nicholls</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> The Australian Tax Office (ATO) paid out more than half a billion dollars to cyber criminals between July 2021 and February 2023, according to an <a href="https://www.abc.net.au/news/2023-07-26/ato-reveals-cost-of-mygov-tax-identity-crime-fraud/102632572">ABC report</a>. Most of the payments were for small amounts (less than A$5,000) and were not flagged by the ATO’s own monitoring systems. The fraudsters exploited a weakness in the identification system used by the myGov online portal to redirect other people’s tax refunds to their own bank accounts. The good news is there’s plenty the federal government can do to crack down on this kind of fraud – and that you can do to keep your own payments secure. <h2>How these scams work</h2> Setting up a myGov account or a myGov ID requires proof of identity in the form of “<a href="https://www.afp.gov.au/sites/default/files/PDF/NPC-100PointChecklist-18042019.pdf">100 points of ID</a>”. It usually means either a passport and a driver’s licence or a driver’s licence, a Medicare card, and a bank statement. Once a myGov account is created, linking it to your tax records requires two of the following: an ATO assessment, bank account details, a payslip, a Centrelink payment, or a super account. These documents were precisely the ones targeted in three large data breaches in the past year: at <a href="https://theconversation.com/what-does-the-optus-data-breach-mean-for-you-and-how-can-you-protect-yourself-a-step-by-step-guide-191332">Optus</a>, at <a href="https://theconversation.com/medibank-hackers-are-now-releasing-stolen-data-on-the-dark-web-if-youre-affected-heres-what-you-need-to-know-194340">Medibank</a>, and at <a href="https://asic.gov.au/about-asic/news-centre/news-items/guidance-for-consumers-impacted-by-the-latitude-financial-services-data-breach/">Latitude Financial</a>. In this scam, the cyber criminal creates a fake myGov account using the stolen documents. If they can also get enough information to link to the ATO or your Tax File Number, they can then change bank account details to have your tax rebate paid to their account. It is a sadly simple scam. <h2>How government can improve</h2> One of the issues here is quite astounding. The ATO knows where salaries are paid, via the “<a href="https://www.ato.gov.au/business/single-touch-payroll/what-is-stp-/">single touch</a>” payroll system. This ensures salaries, tax and superannuation contributions are all paid at once. Most people who have received a tax refund will have provided bank account details where that payment can be made. Indeed, many people use precisely those bank account details to identify themselves to myGov. At present, those bank details can be changed within myGov without any further ado. If the ATO simply checked with the individual via another channel when bank account details are changed, this fraud could be prevented. It might be sensible to check with the individual’s employer as well. Part of the problem is the ATO has not been very transparent about the risks. If these risks were clearly set out, then calls for changes to ATO procedures would have been loud and clear from the cyber security community. The ATO is usually good at identifying when a cyber security incident may lead to fraud. For example, when the recruitment software company <a href="https://www.abc.net.au/news/2018-06-06/australian-data-may-be-compromised-in-pageup-security-breach/9840048?itm_campaign=newsapp">PageUp was hacked in 2018</a>, the ATO required people who may have been affected to reconfirm their identities. This was done without public commentary and represents sound practice. Sadly, the millions of records stolen in the Optus, Medibank and Latitude Financial breaches have not led to a similar level of vigilance. Another action the ATO could take would be to check when a single set of bank account details is associated with more than one myGov account. A national digital identity would also help. However, this system has been in development for years, is not universally popular, and may well be <a href="https://www.themandarin.com.au/226280-gallagher-warns-community-support-for-digital-identity-not-ubiquitous/">delayed</a> until after the federal election due in 2024. <h2>Protecting yourself</h2> The most important thing to do is make sure the ATO does not use a bank account number other than yours. As long as the ATO only has your bank account number to transfer your tax rebate, this scam does not work. It also helps to protect your Tax File Number. There are only four groups that ever need this number. The first is the ATO itself. The second is your employer. However, remember you do not need to give your TFN to a prospective employer, and your employer only needs your TFN after you have started work. Your super fund and your bank may ask for your TFN. However, providing your TFN to your super fund or bank is optional – it just makes things easier, as otherwise they will withhold tax which you will need to claim back later. Of course, all the usual data safety issues still apply. Don’t share your driver’s licence details without good reason. Take similar care with your passport. Your Medicare card is for health services and does not need to be shared widely. Don’t open emails from people you do not know. Never click links in messages unless you are sure they are safe. Most importantly, know your bank will not send you emails containing links, nor will the ATO.<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/210459/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/rob-nicholls-91073">Rob Nicholls</a>, Associate professor of regulation and governance, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</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/the-500-million-ato-fraud-highlights-flaws-in-the-mygov-id-system-heres-how-to-keep-your-data-safe-210459">original article</a>.

Technology

Outrage after renters confronted with cleaning “scoring system”

An Australian real estate agent has come under fire for their “demoralising” scoring system for tenants during routine inspections. One fired up renter said they were shocked to receive a scorecard from the agent after they complied with an inspection, and shared their feedback on Reddit. The scorecard rated the tenant’s efforts cleaning the property in 17 different rooms and areas, marking them on cleanliness, and if the areas were damaged or required maintenance. The renter was then also given an overall rating out of five stars, based on the upkeep of their rental home. The Reddit user showed that they received just three and half stars, despite being marked down in only one area due to a light globe not working. In their post, the tenant said they had made every effort to clean the home, adding that the rating was “demoralising”. “I’ve been renting a long time, and my deep cleaning routine is based around inspections,” they explained. “I go all out - every room in my little 3x2 villa is given a spring clean, every surface is washed including walls, doors, lights, windows, carpets etc.” “Had my latest inspection a few weeks ago and just received the report. Despite the agent commenting once again that she never sees houses as clean as mine, and taking 112 (!) photos of every single thing that shows how great the condition of the house is - having one light globe not working is so terrible that I’m scored three and a half out of five.” The renter went on to say that they had only recently discovered that the broken light globe was the real estate’s responsibility to replace, and does not warrant such a severe marking down in their “score”. “The globe in question is a downlight fitting. We have so many downlights that I don’t even use this particular one,” they continued. “I can’t replace the globe itself, I need to get into the roof to replace the whole unit. Thanks to people here I’ve learned this isn’t even my responsibility to fix!” The renter’s post sparked a huge outrage online, with many up in arms over the current state of the rental market and unrealistic expectations of estate agents. One person said, “I fully believe that the average renter keeps a home to a higher standard than an owner, and it seems deliberately demoralising that someone could be marked down for having a light out.” Another added, “This is ridiculously petty, and more importantly, totally irrelevant to the purpose of a periodic inspection. Which is to identify whether any maintenance is needed.” A third person took their anger out on the entire system, summing it up by writing, “I sort of wonder what little lightbulb clicks in your mind and you wake up one day and ask yourself, ‘How can I be a massive c*** who offers no value to society? I know! I will get into real estate.’” Image credits: Getty Images / Reddit

Real Estate

An El Niño looms over Australia’s stressed electricity system – and we must plan for the worst

<a href="https://theconversation.com/profiles/dylan-mcconnell-1602">Dylan McConnell</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> and <a href="https://theconversation.com/profiles/iain-macgill-576">Iain MacGill</a>, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> The Bureau of Meteorology this week declared a 70% chance of an <a href="https://media.bom.gov.au/releases/1170/the-bureau-of-meteorology-issues-an-el-nino-alert/">El Niño</a> developing this year. It’s bad timing for the electricity sector, and means Australians may face supply disruptions and volatile prices. <a href="http://www.bom.gov.au/climate/updates/articles/a008-el-nino-and-australia.shtml">El Niño events</a> are <a href="https://theconversation.com/from-floods-to-fire-a-climate-scientist-on-the-chances-el-nino-will-hit-australia-this-year-197408">associated with</a> increased temperatures and heatwaves. These conditions drive demand for electricity, especially in summer. These same conditions can also mean some generators don’t produce at full capacity. And unfortunately, the likely El Niño comes as the electricity sector grapples with other significant headwinds. Australia’s electricity grid may be fine this summer. But given what’s on the horizon, it would be prudent to plan for the worst. <h2>How does hot weather affect energy supplies?</h2> Increased air conditioning use in summer can cause <a href="https://aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/nem_esoo/2022/forecasting-approach-electricity-demand-forecasting-methodology.pdf">demand to peak</a>, particularly during heatwaves, as the below graph shows. <figure class="align-center "><img src="https://images.theconversation.com/files/530604/original/file-20230607-27-m1kddg.png?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/530604/original/file-20230607-27-m1kddg.png?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=208&fit=crop&dpr=1 600w, https://images.theconversation.com/files/530604/original/file-20230607-27-m1kddg.png?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=208&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/530604/original/file-20230607-27-m1kddg.png?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=208&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/530604/original/file-20230607-27-m1kddg.png?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=262&fit=crop&dpr=1 754w, https://images.theconversation.com/files/530604/original/file-20230607-27-m1kddg.png?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=262&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/530604/original/file-20230607-27-m1kddg.png?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=262&fit=crop&dpr=3 2262w" alt="Scatterplot of New South Wales demand and temperature, example based on 2017 calendar year" /><figcaption>Scatterplot of New South Wales demand and temperature, example based on 2017 calendar year. AEMO</figcaption></figure> At the same time, electricity generators – including coal, gas, <a href="https://www.climatechangeinaustralia.gov.au/en/projects/esci/esci-case-studies/case-study-heat/">solar and wind</a> – can become less efficient in hot temperatures, and so provide less energy to the system. And the hotter transmission lines get, the less electrical current they can safely carry. This lowers their capacity to transport energy. When the electricity grid is under stress, this can lead to “load shedding” or blackouts – when power companies deliberately switch off the power supply to groups of customers to prevent the overall system from becoming dangerously unstable. This happened in Victoria in early 2019, when more than <a href="https://www.abc.net.au/news/2019-01-26/victorian-blackouts-what-caused-them-and-is-this-the-new-normal/10751412">200,000 customers</a> lost power during a period of extreme heat. El Niño events are also associated with reduced rainfall. Among other effects on the electricity grid, this can reduce output from hydroelectricity generators (which produce electricity by pumping water through turbines). This <a href="https://theconversation.com/praying-for-rain-50085">occurred</a> in Tasmania in 2016, and contributed to an energy crisis in that state. <h2>Other headwinds are blowing</h2> Aside from facing a likely El Niño, the electricity sector faces other headaches. Earlier this year, the Australian Energy Market Operator <a href="https://aemo.com.au/newsroom/media-release/aemo-issues-nem-reliability-update">warned</a> electricity demand “may exceed supply” at times over the next decade due to factors such as weather conditions or generator outages. The market operator pointed to delays to the Snowy 2.0 hydro project and the gas-fired <a href="https://www.afr.com/companies/energy/new-snowy-ceo-can-t-rule-out-further-delays-at-projects-20230213-p5cjzr">Kurri Kurri Power Station</a>, both in New South Wales. The Kurri Kurri project has been delayed for a year. It was scheduled to begin operating in December this year – in time for the first summer since the Liddell coal-fired power station closed. The Australian Energy Market Operator said the electricity system was expected to meet the “reliability standard” in all regions for the next five years. The <a href="https://www.aemc.gov.au/energy-system/electricity/electricity-system/reliability#:%7E:text=What%20is%20the%20Reliability%20Standard,to%20be%20met%20each%20year.">standard requires</a> at least 99.998% of forecast demand be met each year. Unmet demand can lead to interrupted supply, or blackouts. But the operator also said delays to the Kurri Kurri project posed risks to reliability in NSW this summer. Adding to the pressures on the system, Queensland’s Callide C coal-fired power station is still not back to capacity more than two years after an explosion at the site. The station’s owners last week <a href="https://www.afr.com/companies/energy/energy-grid-fears-as-callide-c-return-delayed-until-mid-2024-20230529-p5dc90">announced</a> the plant would not be fully operational until mid-2024. Combine all this with a likely El Niño, and the electricity sector may be facing a challenging summer. <h2>El Niño years are not normal</h2> In August, the Australian Energy Market Operator is due to publish a new <a href="https://aemo.com.au/-/media/files/electricity/nem/planning_and_forecasting/nem_esoo/2022/esoo-and-reliability-forecast-methodology-document-2022.pdf">assessment</a> of the grid’s expected reliability over the next decade. It may well show reliability standards will be achieved. On first blush, that sounds like good news. However, the way the assessment is derived may mask the real risk during El Niño periods. The assessment combines a number of scenarios, which are based on different <a href="https://aemo.com.au/en/energy-systems/electricity/national-electricity-market-nem/nem-forecasting-and-planning/forecasting-and-reliability/projected-assessment-of-system-adequacy">forecasts</a> of electricity demand. The scenarios based on average weather conditions are given the most weight. But if an El Niño arrives, this summer will not be average. We’re likely to experience very hot and dry conditions. This may lead to higher demands on the energy system, and a greater likelihood of blackouts. This won’t be properly reflected in the assessment. So the grid may be deemed reliable even though electricity supplies are under immense pressure. <figure class="align-center "><img src="https://images.theconversation.com/files/530771/original/file-20230608-30-lb28wc.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/530771/original/file-20230608-30-lb28wc.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=600&h=450&fit=crop&dpr=1 600w, https://images.theconversation.com/files/530771/original/file-20230608-30-lb28wc.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=600&h=450&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/530771/original/file-20230608-30-lb28wc.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=600&h=450&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/530771/original/file-20230608-30-lb28wc.jpg?ixlib=rb-1.1.0&q=45&auto=format&w=754&h=566&fit=crop&dpr=1 754w, https://images.theconversation.com/files/530771/original/file-20230608-30-lb28wc.jpg?ixlib=rb-1.1.0&q=30&auto=format&w=754&h=566&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/530771/original/file-20230608-30-lb28wc.jpg?ixlib=rb-1.1.0&q=15&auto=format&w=754&h=566&fit=crop&dpr=3 2262w" alt="repair person climbs power pole" /><figcaption>The grid may be deemed reliable even though it’s under pressure. Shutterstock</figcaption></figure> <h2>What can be done?</h2> You might find all this news worrying. But there are measures and technologies in place to help reduce the risks. <a href="https://aemo.com.au/en/energy-systems/electricity/emergency-management/reliability-and-emergency-reserve-trader-rert">A mechanism</a> exists that allows the market operator to secure emergency energy reserves. It could mean, for example, calling on a large industrial plant to pause operations to reduce its electricity use, or starting up a standby diesel generator. The operator can start procuring this months ahead of time, and will no doubt be monitoring the situation closely. In the medium term, the uptake of so-called “consumer energy resources” such as rooftop solar farms and small-scale battery storage shows promise. These technologies are located at homes and businesses. They can reduce demand on the grid at peak times and can potentially be built faster than big projects. Longer term, we need to build more “stuff”. This includes renewable energy and other “dispatchable” resources – which can provide energy when it’s needed – as well as more transmission infrastructure. Several federal funding measures – the <a href="https://www.energy.gov.au/government-priorities/energy-supply/capacity-investment-scheme">Capacity Investment Scheme</a> and <a href="https://www.energy.gov.au/news-media/news/rewiring-nation-supports-its-first-two-transmission-projects">Rewiring the Nation</a> – might help realise these projects. The reality is that ageing coal plants are closing – and while they remain open, they’re contributing to reliability challenges in the energy system. Unchecked climate change will also add considerable strain, through natural disasters and more extreme weather. Unfortunately, investment in renewable and other low-emission technology has been <a href="https://www.cleanenergycouncil.org.au/news/clean-energy-construction-peaks-as-investment-pipeline-battles-headwinds">slower than necessary</a>. This has slowed Australia’s emissions reduction efforts and cast questions over the reliability of our energy supplies as an El Niño looms.<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/207210/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /> <a href="https://theconversation.com/profiles/dylan-mcconnell-1602">Dylan McConnell</a>, Senior Research Associate, Renewable Energy & Energy Systems Analyst, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> and <a href="https://theconversation.com/profiles/iain-macgill-576">Iain MacGill</a>, Joint director, Collaboration on Energy and Environmental Markets, and Professor, School of Electrical Engineering and Telecommunications, <a href="https://theconversation.com/institutions/unsw-sydney-1414">UNSW Sydney</a> This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/an-el-nino-looms-over-australias-stressed-electricity-system-and-we-must-plan-for-the-worst-207210">original article</a>. Images: Getty

Technology

Want an easy $400 a year? Ditch the gas heater in your home for an electric split system

Earlier this month, regulators <a href="https://theconversation.com/why-are-electricity-prices-going-up-again-and-will-it-ever-end-201869">flagged</a> power price rises in Queensland, New South Wales, Victoria and South Australia. Like many people, you’re probably wondering how you can minimise the financial pain. Getting rid of gas and electrifying everything in your home can save you money. <a href="https://renew.org.au/wp-content/uploads/2022/11/Report-Limiting-energy-bills-by-getting-off-gas.pdf">Modelling</a> by not-for-profit organisation Renew showed annual bills last year for a <a href="https://www.nathers.gov.au/owners-and-builders/home-energy-star-ratings">seven-star</a> all-electric home with solar power were between 69% (Western Sydney) and 83% (Hobart) cheaper than bills for a three-star home with gas appliances and no solar. There are other reasons to kick the gas habit, too. As renewables form an ever-growing part of Australia’s energy mix, electrifying the home increasingly helps tackle climate change. What’s more, there are sound <a href="https://www.unsw.edu.au/news/2023/02/a-heated-debate--how-safe-are-gas-stoves--">health</a> reasons to get rid of gas appliances. But where do you start? And how do you get the best bang for your buck? Here, I offer a few tips. <h2>A quick guide to home energy use</h2> Australian home energy use can be separated into a few categories: <ul> <li>space heating and cooling</li> <li>water heating</li> <li>cooking</li> <li>vehicles </li> <li>other appliances (many of which are largely already electric). </li> </ul> Of the appliances that typically depend on gas, the <a href="https://www.rewiringaustralia.org/report/castles-and-cars-discussion-paper">largest component</a> (37%) is space heating, followed by hot water (24%) and cooking (6%). This varies between states. Victoria, for example, is particularly dependent on gas. But the breakdown above gives some insight into the largest contributors to energy costs in the average Australian home – particularly in the cooler southern regions. While both gas and electricity costs are rising, as they are now in most states, all-electric homes can expect lower overall increases. <a href="https://renew.org.au/wp-content/uploads/2022/11/Report-Limiting-energy-bills-by-getting-off-gas.pdf">Analysis</a> by Renew has shown ditching the old gas heater in favour of a split system/reverse cycle air-conditioner (without solar panels) can lead to average savings of A$546 each year in Canberra, $440 in Adelaide, $409 in Melbourne and $256 in Perth. Heating a space with a reverse-cycle air conditioner is about four times more efficient than using natural gas. And when the electricity is generated by renewables, it can be done with zero greenhouse gas emissions. And what about heating water? Using the existing electricity grid, the cost of using an electric heat pump is around half that of using a natural gas water heater. The costs fall even lower if a household shifts to solar panels subsidised or financed by government, backed by a home battery providing the energy. In this case, heating costs are around a third of using gas. <h2>So what’s the payback?</h2> Buying new appliances costs money. So it’s important to examine the “payback” period - in other words, the length of time it takes for energy bill savings to equal the cost of the initial investment in a new appliance. The payback period can vary depending on: <ul> <li>cost and quality of the appliance</li> <li>an appliance’s energy rating</li> <li>size of the system</li> <li>for space heating, whether a split system is replacing an existing ducted system or being added on externally.</li> </ul> A <a href="https://www.climatecouncil.org.au/wp-content/uploads/2022/10/CC_MVSA0323-CC-Report-Gas-vs-Electricity_V4-Single.pdf">report</a> last year by the Climate Council calculated the approximate cost differences between higher and lower-end electric appliances. Lower-end hot water heat pumps, reverse-cycle air conditioner and induction stoves were priced around $7,818 all together, while higher-end appliances cost around $14,936 together. Both scenarios included installation costs and $3,000 for electrical upgrades and other costs. The payback period for low-priced appliances ranged from five years in Hobart and Canberra to 15 years in Perth and Sydney. Higher-priced appliances were in the order of eight to ten years for most cities and 12, 16 and 19 years for Melbourne, Perth and Sydney respectively. Rolled out at scale, household electrification is also a feasible way to reduce gas demand. It may be the only practical option available to decarbonise residential energy. As research <a href="https://www.sciencedirect.com/science/article/pii/S0196890422013802#b0130">recently suggested</a>, so-called “green” hydrogen – made by using low-carbon electricity to split water into hydrogen and oxygen – is unlikely to emerge as a cheap replacement for gas boilers. And why look for a technological solution to a problem we already know how to solve? Modelling by <a href="https://environmentvictoria.org.au/wp-content/uploads/2020/06/Vic-Gas-Market-Demand-Side-Study-Final-Report-1.pdf">Environment Victoria</a> has shown installing heat pumps for heating and cooling would reduce statewide gas use by 48 petajoules a year, compared to the relatively minimal 0.5 petajoules saved by installing induction cooktops. At the same scale – and using a similar technology – replacing gas hot water with heat pump hot water reduces household gas use by 10 petajoules each year. That’s an enormous saving of gas. <h2>The bigger picture for all-electric homes</h2> Existing homes can benefit from a combination of electrification, rooftop solar and batteries. They can also benefit from energy efficiency measures such as installing insulation, stopping draughts, closing off rooms and wearing the right clothing for the season. We can work together to speed up the transition to renewable energy and reduce the demand for gas. Image credits: Getty Images This article originally appeared on <a href="https://theconversation.com/want-an-easy-400-a-year-ditch-the-gas-heater-in-your-home-for-an-electric-split-system-201941" target="_blank" rel="noopener">The Conversation</a>.

Home Hints & Tips

Major overhaul of Aussie superannuation system touted

There may be a major change coming to Australia's $3.3 trillion superannuation system, with Treasurer Jim Chalmers looking to crack down on early access. Chalmers will be speaking to call for an objective for superannuation that will emphasise the need for it to be preserved until retirement. This would make it harder for Australians to access their funds early. The federal opposition are taking a different stance and have pushed for early access to remain open as part of a first home buyers scheme. John Kehoe, Australian Financial Review economics editor, told Today $36 billion had been withdrawn from Australians’ collective super during the COVID-19 pandemic. "That's something that Labor wants to shut the door on," he said. Kehoe said there were two sides to the first home buyers scheme, saying that people accessing their super early could drive prices higher. "The retirement income system showed the best way to have financial security in retirement is owning your own home," he said. "It is people renting in retirement that do it really tough.” Independent Senator Jacqui Lambie expressed her view on the proposal, saying life wasn't "black and white.” "There are things that happen in our lives where that money may come in handy, whether it is part of that money, or 20 per cent of that money, just to keep us afloat," she said. "And especially in the next two years, if we are going into recession, if there are guys out there who can dig in to make sure we can keep the roof over their head, to continue to pay their house rates, we have to be a bit more flexible than that when we are going through tough times." Image credit: Getty

Retirement Life

"You have to beg for help": how our welfare system pressures people to perform vulnerability

People who rely on welfare payments to survive are often required to repeatedly tell stories of their personal hardships. In a <a href="https://www.theguardian.com/australia-news/2022/jun/07/job-seekers-could-have-welfare-stopped-under-onerous-new-points-based-system-advocates-warn">conditional welfare system</a>, many must regularly attend compulsory appointments, job search training courses, and self-development and treatment programs simply to receive their payments. People in extreme hardship often tell their stories even more frequently as they seek extra relief from non-government charities and community providers. Those on income support payments below the relative poverty line feel the crunch of <a href="https://www.ncoss.org.au/wp-content/uploads/2022/07/NCOSS_CostOfLiving22_FINAL_DESIGNED.pdf">inflation and rising living costs</a> most severely. This means many will require extra support from welfare services to meet their basic needs. Integral to this system is the idea of “performing vulnerability”. “Performing vulnerability” – a term I borrow from UK-based researcher <a href="https://policy.bristoluniversitypress.co.uk/vulnerability-and-young-people">Kate Brown</a> to update Australian academic <a href="https://www.cambridge.org/core/books/lowest-rung/FA159318C2D046EDD3C9347C8B8E4F2E">Mark Peel’s</a> idea of “performing poverty” – is not just about repeatedly describing personal hardship. It points to the expectation to describe hardship in particular ways that are recognisable – and hence believable – to support providers. My book, <a href="https://policy.bristoluniversitypress.co.uk/making-a-life-on-mean-welfare">Making a Life on Mean Welfare: Voices from Multicultural Sydney </a>shows how the expectation to perform vulnerability to access support shapes experiences on both sides of the welfare frontline. It can compound the cycle of disadvantage associated with receiving welfare in the long term. It does so by <a href="https://journals.sagepub.com/doi/10.1177/0038026119876775">fostering mistrust</a> between welfare users and providers, as well as tainting how people in need of support see themselves and their situation. <h2>‘Tell me your story’</h2> For my doctoral research, I spent 18 months speaking to welfare users and workers in culturally and linguistically diverse southwest Sydney. I also observed different aspects of service delivery while volunteering at a community welfare organisation. I interviewed 25 welfare users and 11 community welfare practitioners. As a researcher of everyday experiences of welfare and poverty, I know all too well what it is like to ask people to tell their stories of hardship yet again. I also grew up in an impoverished family reliant on welfare to get by. I know firsthand what the impact of retelling stories of hardship can be, particularly when the audience is, as Peel <a href="https://www.cambridge.org/core/books/lowest-rung/FA159318C2D046EDD3C9347C8B8E4F2E">puts</a> it, “someone who has the power to give or deny them something they need”. One of the community welfare practitioners I interviewed summed it up by saying: "They’re coming again feeling ashamed. They’ve knocked on someone’s door, to tell yet again how shitty their situation is." Her response was to chat and put them at ease before saying, “Can you tell me your story?” She would follow up by saying, “You’ve given me some insight, let’s formalise your story a little bit.” Some welfare workers showed more scepticism, particularly when it came to giving out emergency relief. When someone refused to share more than the minimum information required to be eligible for extra assistance, one welfare worker commented: "That person doesn’t want to take responsibility." Another practitioner told me, “That woman dramatised her situation,” but quickly added, “That doesn’t mean she wasn’t genuine.” The willingness of people seeking assistance to disclose personal hardships and do so convincingly impacts on how deserving they may come across to those delivering support. The pressure to perform can overshadow encounters between welfare users and workers even when it doesn’t determine the outcome. <h2>‘It’s your dignity’</h2> Among the most marginal welfare recipients I spoke to, “performing vulnerability” was another toll of poverty. Those experiencing the worst hardship frequently told me about having to explain “the ins and outs” and feeling “embarrassed”, “intimidated” or “uncomfortable” when they had to present to welfare agencies. Two young people (whom I have given fictional names) powerfully conveyed the cost of telling all about their struggles: <blockquote> Kane: Often if you go to them sorts of people (welfare agencies) you’ve gotta put it all out there, that you’re homeless, that you got nothing, you got no friends, no family – and then they’re gonna go boom “alright” (you get the help you came for)… Nessa: Yeah, that’s what I had to do to get a house and it’s embarrassing (talking over each other) I think it’s embarrassing. Kane: You gotta go down to those levels you know – it’s wrong. Nessa: When you gotta expose everything and don’t want to, it’s, like, your dignity. Kane: Yeah, it’s everything. </blockquote> <h2>Performing is not pretending</h2> The most marginal welfare users get a great deal of practice performing their hardship. But knowing how to tell their story a certain way is not the same as pretending. Not only do people at the sharp end of the welfare system have to endure the hardships of poverty, but they must then recite it in a way that registers as genuine, pressing and beyond reprieve. As a woman living on the disability support pension put it:"You don’t have the flexibility that a rich person has to respond to crisis, so you have to beg for help. That takes time! And you know you’ll be judged like it’s your fault." A welfare system that demands disclosure of personal hardships – even when geared towards being <a href="https://onlinelibrary-wiley-com.ezproxy.uws.edu.au/doi/full/10.1111/1468-4446.12740">supportive</a> rather than suspicious – can undermine dignity and hold back those unwilling or unable to tell their story convincingly or in enough detail. Image credits: Getty Images This article originally appeared on <a href="https://theconversation.com/you-have-to-beg-for-help-how-our-welfare-system-pressures-people-to-perform-vulnerability-180975" target="_blank" rel="noopener">The Conversation</a>.

Retirement Income

Did COVID harm my immune system?

So you’ve had COVID and have now recovered. You don’t have ongoing symptoms and luckily, you don’t seem to have developed <a href="https://theconversation.com/long-covid-how-researchers-are-zeroing-in-on-the-self-targeted-immune-attacks-that-may-lurk-behind-it-169911" target="_blank" rel="noopener">long COVID</a>. But what impacts has COVID had on your overall immune system? It’s early days yet. But growing evidence suggests there are changes to your immune system that may put you at risk of other infectious diseases. Here’s what we know so far. <h2>A round of viral infections</h2> Over this past winter, many of us have had what seemed like a <a href="https://theconversation.com/why-do-i-and-my-kids-get-so-many-colds-and-with-all-this-covid-around-should-we-be-isolating-too-179302" target="_blank" rel="noopener">continual round</a> of viral illness. This may have included COVID, <a href="https://www.who.int/health-topics/influenza-seasonal#tab=tab_1" target="_blank" rel="noopener">influenza</a> or infection with <a href="https://www.mayoclinic.org/diseases-conditions/respiratory-syncytial-virus/symptoms-causes/syc-20353098" target="_blank" rel="noopener">respiratory syncytial virus</a>. We may have recovered from one infection, only to get another. Then there is the re-emergence of infectious diseases globally such as <a href="https://theconversation.com/we-need-to-talk-about-monkeypox-without-shame-and-blame-188295" target="_blank" rel="noopener">monkeypox</a> or <a href="https://theconversation.com/the-latest-polio-cases-have-put-the-world-on-alert-heres-what-this-means-for-australia-and-people-travelling-overseas-188989" target="_blank" rel="noopener">polio</a>. Could these all be connected? Does COVID somehow weaken the immune system to make us more prone to other infectious diseases? There are <a href="https://www.sciencedirect.com/science/article/pii/B9780128009475000168?via%3Dihub" target="_blank" rel="noopener">many reasons</a> for infectious diseases to emerge in new locations, after many decades, or in new populations. So we cannot jump to the conclusion COVID infections have given rise to these and other viral infections. But evidence is building of the negative impact of COVID on a healthy individual’s immune system, several weeks after symptoms have subsided. <h2>What happens when you catch a virus?</h2> There are three possible outcomes after a viral infection: 1) your immune system clears the infection and you recover (for instance, with <a href="https://www.healthychildren.org/English/health-issues/conditions/ear-nose-throat/Pages/Rhinovirus-Infections.aspx" target="_blank" rel="noopener">rhinovirus</a> which causes the common cold) 2) your immune system fights the virus into “latency” and you recover with a virus dormant in our bodies (for instance, <a href="https://www.healthdirect.gov.au/chickenpox" target="_blank" rel="noopener">varicella zoster virus</a>, which causes chickenpox) 3) your immune system fights, and despite best efforts the virus remains “chronic”, replicating at very low levels (this can occur for <a href="https://www.who.int/news-room/fact-sheets/detail/hepatitis-c" target="_blank" rel="noopener">hepatitis C virus</a>). Ideally we all want option 1, to clear the virus. In fact, most of us <a href="https://biosignaling.biomedcentral.com/articles/10.1186/s12964-022-00856-w" target="_blank" rel="noopener">clear SARS-CoV-2</a>, the virus that causes COVID. That’s through a complex process, using many different parts of our immune system. But international evidence suggests changes to our immune cells after SARS-CoV-2 infection may have other impacts. It may affect our ability to fight other viruses, as well as other pathogens, such as bacteria or fungi. <h2>How much do we know?</h2> An <a href="https://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-021-02228-6" target="_blank" rel="noopener">Australian study</a> has found SARS-CoV-2 alters the balance of immune cells up to 24 weeks after clearing the infection. There were changes to the relative numbers and types of immune cells between people who had recovered from COVID compared with healthy people who had not been infected. This included changes to cells of the <a href="https://www.khanacademy.org/test-prep/mcat/organ-systems/the-immune-system/a/innate-immunity" target="_blank" rel="noopener">innate immune system</a> (which provides a non-specific immune response) and the <a href="https://www.ncbi.nlm.nih.gov/books/NBK21070/" target="_blank" rel="noopener">adaptive immune system</a> (a specific immune response, targeting a recognised foreign invader). <a href="https://journals.plos.org/plospathogens/article?id=10.1371/journal.ppat.1009742" target="_blank" rel="noopener">Another study</a> focused specifically on <a href="https://www.immunology.org/public-information/bitesized-immunology/cells/dendritic-cells" target="_blank" rel="noopener">dendritic cells</a> – the immune cells that are often considered the body’s “first line of defence”. Researchers found fewer of these cells circulating after people recovered from COVID. The ones that remained were less able to activate white blood cells known as <a href="https://www.britannica.com/science/T-cell" target="_blank" rel="noopener">T-cells</a>, a critical step in activating anti-viral immunity. Other studies have found different impacts on T-cells, and other types of white blood cells known as <a href="https://askabiologist.asu.edu/b-cell" target="_blank" rel="noopener">B-cells</a> (cells involved in producing antibodies). After SARS-CoV-2 infection, one study <a href="https://doi.org/10.1172/JCI140491" target="_blank" rel="noopener">found evidence</a> many of these cells had been activated and “exhausted”. This suggests the cells are dysfunctional, and might not be able to adequately fight a subsequent infection. In other words, sustained activation of these immune cells after a SARS-CoV-2 infection may have an impact on other inflammatory diseases. <a href="https://www.nature.com/articles/s41392-021-00749-3#citeas" target="_blank" rel="noopener">One study</a> found people who had recovered from COVID have changes in different types of B-cells. This included changes in the cells’ metabolism, which may impact how these cells function. Given B-cells are critical for producing antibodies, we’re not quite sure of the precise implications. Could this influence how our bodies produce antibodies against SARS-CoV-2 should we encounter it again? Or could this impact our ability to produce antibodies against pathogens more broadly – against other viruses, bacteria or fungi? The study did not say. <h2>What impact will these changes have?</h2> One of the main concerns is whether such changes may impact how the immune system responds to other infections, or whether these changes might worsen or cause other chronic conditions. So more work needs to be done to understand the long-term impact of SARS-CoV-2 infection on a person’s immune system. For instance, we still don’t know how long these changes to the immune system last, and if the immune system recovers. We also don’t know if SARS-CoV-2 triggers other chronic illnesses, such as <a href="https://www.healthdirect.gov.au/chronic-fatigue-syndrome-cfs-me" target="_blank" rel="noopener">chronic fatigue syndrome</a> (myalgic encephalomyelitis). Research into this is ongoing. What we do know is that having a healthy immune system and being vaccinated (when a vaccine has been developed) is critically important to have the best chance of fighting any infection. This article originally appeared on <a href="https://theconversation.com/ive-had-covid-and-am-constantly-getting-colds-did-covid-harm-my-immune-system-am-i-now-at-risk-of-other-infectious-diseases-188899" target="_blank" rel="noopener">The Conversation</a>. Image: Shutterstock

Body

AI system sees beyond the frame of famous artworks

A new AI tool can provide a glimpse of what could potentially be going on beyond the frame of famous paintings, giving them a brand new life. OpenAI, a San Francisco-based company, has created a new tool called 'Outpainting' for its text-to-image AI system, DALL-E. Outpainting allows the system to imagine what's outside the frame of famous works such as Girl with The Pearl Earring, Mona Lisa and Dogs Playing Poker. DALL-E relies on artificial neural networks (ANNs), which simulate the way the brain works in order to learn and create an image from text. Now with Outpainting, users must describe the extended visuals in text form for DALL-E to “paint” the newly imagined artwork. Outpainting, which is primarily aimed for professionals who work with images, will let users 'extend their creativity' and 'tell a bigger story', according to OpenAI. US artist August Kamp used Outpainting to reimagine the famous 1665 painting Girl with a Pearl Earring by Johannes Vermeer, extending the background in the original style. The results show the iconic subject in a domestic setting, surrounded by crockery, houseplants, fruit, boxes and more. Other Outpainting attempts took a more creative turn, with one showing the Mona Lisa surrounded by a dystopian wasteland, and a version of A Friend In Need showing an additional table of gambling canines. <blockquote class="twitter-tweet"> “Outpainting: an apocalyptic Mona Lisa” by tonidl1989<a href="https://twitter.com/hashtag/dalle?src=hash&ref_src=twsrc%5Etfw">#dalle</a> <a href="https://twitter.com/hashtag/dalle2?src=hash&ref_src=twsrc%5Etfw">#dalle2</a> <a href="https://twitter.com/hashtag/aiart?src=hash&ref_src=twsrc%5Etfw">#aiart</a> <a href="https://twitter.com/hashtag/aiartwork?src=hash&ref_src=twsrc%5Etfw">#aiartwork</a> <a href="https://t.co/puYVxjyFMm">pic.twitter.com/puYVxjyFMm</a> — Best Dalle2 AI Art 🎨 (@Dalle2AI) <a href="https://twitter.com/Dalle2AI/status/1565168579376566278?ref_src=twsrc%5Etfw">September 1, 2022</a></blockquote> <blockquote class="twitter-tweet"> Used DALL-E 2’s new “outpainting” feature to expand the world’s greatest work of art… <a href="https://t.co/0HXQzngt9P">pic.twitter.com/0HXQzngt9P</a> — M.G. Siegler (@mgsiegler) <a href="https://twitter.com/mgsiegler/status/1565398150482784256?ref_src=twsrc%5Etfw">September 1, 2022</a></blockquote> DALL-E is available to more than one million people to create AI-generated images, all with a series of text prompts. DALL-E is just one of many AI systems infiltrating the art world, joining the likes of Midjourney and Imagen redefining how we create and appreciate art. Image credits: DALL-E - August Kamp

Art

Australia has a new bushfire danger rating system

Australia has a new bushfire danger rating system. Fire danger ratings describe the potential level of danger should a bushfire start. They provide people with information so they can take action to protect themselves and others from the potentially dangerous impacts of bushfires. The Australian Fire Danger Rating System (or AFDRS) has in many ways been a project more than 50 years in the making – only now it’s replacing the modelling originally developed in the 1960s with more precise scientific understandings of fuel sources, fire and human behaviours. The new system will extend to the way information is delivered to the public. While many roadside signs will be refreshed, some jurisdictions will instead use more modern communications like the internet and social media to relay information to their communities. So how does a sixty-year-old system – and the science behind it – get an overhaul? <h2>The science behind the new fire danger ratings</h2> While the public sees a colour-coded dial on a road sign, or catches an emergency update on the radio, there is a substantial body of scientific modelling underlying a system which covers one of the world’s largest countries by area. One of the most important changes to the AFDRS science is the expansion of vegetation models used to predict fire behaviour. Previously, the system considered just two types of vegetation – grassland and forest. Now, it’s eight. Grassland and forest remain, but the models have been refined and expanded to include grassy woodlands, spinifex, shrubland, mallee heath, button grass and pine forest. <img src="https://oversixtydev.blob.core.windows.net/media/2022/09/fire-1.jpg" alt="" width="1280" height="720" /> The left map of Australia shows how fire modelling has seen Australia for the best part of sixty years, the right indicates how the nation will be viewed from September 1. That, says Dr Stuart Matthews, a principal project officer at NSW Rural Fire Service who led the science update for AFDRS, is because Australia is a land of more than just sweeping grassplains and expansive gum forests. “There’s very diverse range of vegetation across the whole country and pretending it’s all either grasslands or open, dry sclerophyll forest just isn’t an accurate representation,” says Matthews. The eight new vegetation models include the ability to consider 22 different fuel types. Creating a system that uses four times as many models is an involved process – one that has covered almost a decade of research, prototyping and public engagement. And the science goes beyond the expansion of vegetation analysis. Working closely with the Bureau of Meteorology to understand weather and climate patterns, the atmospheric science and reporting provided to both the AFDRS and the wider public has been updated to reflect the new vegetation modelling. <h2>How the science moves the dial</h2> Fire authorities use sophisticated systems to determine the rating for any given point in time. These systems – which are to be used nationally – divide the Australian landmass into 2.25 square kilometre units and analyses the fuel source within them. These units also reflect data on when the last time fuel in the region was burnt-through. Combined with the latest forecasts for areas from the weather bureau, information is placed into the fire behaviour model appropriate for the area. The system then creates a textual description of what a burning fire in that area would do, including its rate of spread, heat intensity and flame height. This description is then transferred to a series of tables which converts the description into a numerical value. This value aligns to a rating category on the Fire Behaviour Index, a ‘stepped’ indicator that allows authorities to prepare systems and resourcing to respond in the event of a fire. <img src="https://oversixtydev.blob.core.windows.net/media/2022/09/fire-2.jpg" alt="" width="1280" height="720" /> This index effectively guides local authorities’ actions on days of fire risk. For the public, it’s the guide to moving the dial on road signs. There are five categories on the behaviour index: no rating, moderate, high, extreme and catastrophic. Until the end of August 2022, the scale includes ratings like ‘low-moderate’, ‘very high’, and ‘severe’ – these have been retired. <img src="https://oversixtydev.blob.core.windows.net/media/2022/09/fire-3.jpg" alt="" width="1280" height="720" /> The ‘no rating’ acts as the “parking bay” for the roadside needle, advising the public of the lowest risk conditions. But there’s science behind that too. ‘No rating’ days align to conditions appropriate for a controlled, prescribed burn. “For instance, in forest, prescribed burnings are normally done at a heat output of about 750 kilowatts per metre,” says Matthews. “So, in forests, if the prediction coming out of the model was that intensity would be less than 750kW, it would be classified in the ‘no rating’ range.” Anything above 750kW in a forest community would force authorities to ‘grade up’. <h2>System overhauled, but we won’t need to wait sixty years for the next update</h2> The previous fire rating system was developed by CSIRO scientist A. G. McArthur in the 1960s. And while familiar characteristics have been transferred to the new project, the ‘back end’ processes and science were rigid. Rigid enough that the system has been largely unchanged for the six decades since it was first implemented. In contrast, the new AFDRS is designed to be updated as new science comes to hand. It’s also informed by real world, operational knowledge and experience. This, says Matthews, provides authorities with more precision in fire preparation and response. “It’s a really big change from the old system, where none of the rating levels had an established and agreed meaning,” he says. “In the McArthur work, they were set up as a suppression difficulty measure, but that was never ‘tied down’ and everyone had their own interpretation of what that meant, which made it really hard to assess how the system was working. It was poorly defined. “It’s taken sixty years to get to where we are and one of the obstacles, from a science point-of-view, was that the system was fixed. You couldn’t make incremental changes to it. “With the new system, we’ve built it in a modular way, and clearly broken down the different parts of the system so we can upgrade and change things if we need to.” An important element of the bushfire rating system is to be able to indicate the impact of a possible bushfire in words a landowner might understand. <hr /> The Country Fire Service (South Australia) describes a ‘Catastrophic Level’ bushfire as: <ul> <li>The worst conditions for a bush or grass fire.</li> <li>If a fire starts and takes hold, it will be extremely difficult to control. It will take significant fire fighting resources and cooler conditions to bring it under control.</li> <li>Spot fires will start well ahead of the main fire and cause rapid spread of the fire. Embers will come from many directions.</li> <li>Homes are not designed or constructed to withstand fires in these conditions.</li> <li>The safest place to be is away from bushfire prone areas.</li> </ul> Dr Matthews points out that the messaging for consequences will continue to be based on fire behaviour and known elements like flame heights, fuel loads, wind speed and spotting. “We are building a case for funding for more research to improve the accuracy in the future of the fire impact.“ This article originally appeared on <a href="https://cosmosmagazine.com/people/australian-fire-danger-rating-system/" target="_blank" rel="noopener">cosmosmagazine.com</a> and was written by Matthew Agius. Image: Country Fire Authority (CFA)

Travel Trouble

Anne Heche's blood test results revealed after horror smash

An investigation of Anne Heche’s blood results have detected “the presence of drugs” following <a href="https://www.oversixty.com.au/news/news/new-details-of-actor-anne-heche-s-fiery-crash" target="_blank" rel="noopener">her horror smash</a>. The US actress was pulled out of her burning car after she smashed into a mansion in Los Angeles while driving a terrifying 140km/h on August 5. The 53-year-old suffered severe injuries and soon after the crash fell into a coma and has not regained consciousness since. Almost a week after the incident, a Los Angeles Police Department Public Information Officer confirmed there was a “presence of drugs” in Anne’s blood system. “Based on the blood draw, it revealed the presence of drugs, however additional testing is required to rule out any substances that were administered at the hospital as part of her medical treatment,” they told <a href="https://www.foxnews.com/entertainment/anne-heche-blood-test-revealed-presence-of-drugs" target="_blank" rel="noopener">Fox News Digital</a>. "Any secondary drugs [takes] up to 30 days for [a] secondary test to come back.” TMZ previously reported that Anne had cocaine in her system upon arrival at the hospital, but that is yet to be confirmed. The crash is currently being investigated by the LAPD who have confirmed that if Anne is found to have been drunk she would face significant charges. "If found intoxicated, [Heche] could be charged with misdemeanour DUI hit and run. No arrests have been made so far,” a representative said. Anne’s representative has confirmed that she is in an “extreme critical condition”. “She has a significant pulmonary injury requiring mechanical ventilation and burns that require surgical intervention,” her representative said. “She is in a coma and has not regained consciousness since shortly after the accident.” Image: Getty

Caring

How do human eggs stay dormant and reproductively healthy for decades in the ovaries?

Human eggs form before birth and can remain reproductively viable for up to 50 years before they are fertilised. But how can they remain dormant and healthy in the ovaries for so long? According to a new study published in Nature, the answer lies in their altered metabolic activity – skipping the use of a key protein and enzyme complex (respiratory complex I). To generate energy in their dormant state and avoid creating harmful molecules that can damage DNA and cause cell death, human eggs instead use alternative metabolic pathways never before seen in other animal cell types. “Humans are born with all the supply of egg cells they have in life. As humans are also the longest-lived terrestrial mammal, egg cells have to maintain pristine conditions while avoiding decades of wear-and-tear,” explains lead author Aida Rodriguez-Nuevo, a postdoctoral researcher at the Centre for Genomic Regulation (CRG), Spain. “We show this problem is solved by skipping a fundamental metabolic reaction that is also the main source of damage for the cell. As a long-term maintenance strategy, it’s like putting batteries on standby mode,” she adds. “This represents a brand new paradigm never before seen in animal cells.” <h2>Altered metabolism in oocytes</h2> Human eggs first form in the ovaries during foetal development. During the early stages of maturation, immature egg cells (known as oocytes) are put into cellular arrest and can remain dormant for decades. During this period, the oocyte’s mitochondria – kind of like the batteries of the cell – still generate just enough energy to fulfill the cell’s needs. To investigate how they do this, researchers used a combination of live imaging and proteomic (large-scale study of proteins) and biochemistry techniques to investigate this energy generation in human and Xenopus (aquatic frog) oocytes. Interestingly, they found that the oocytes do not use a fundamental protein, known as complex I, that initiates the reactions that generate energy in the mitochondria of most other cells. In fact, complex I is virtually absent in oocytes. This allows oocytes to avoid creating molecules known as reactive oxygen species (ROS) – molecules containing oxygen that readily react with other chemicals. ROS are normal by-products of cellular metabolism but are harmful when they accumulate, damaging the normal function of DNA, proteins, and other cellular components, and eventually causing cell death. They are also associated with lower rates of fertilisation and embryo survival. Live imaging showed that neither Xenopus nor human early oocytes showed any detectable ROS signal. <h2>Implications for preserving ovarian reserves</h2> According to the authors of the study, this finding explains why some individuals with mitochondrial conditions linked to complex I don’t experience reduced fertility, compared to those with conditions affecting other mitochondrial respiratory complexes. This finding could also lead to new strategies to help preserve the human egg cell reserves of patients undergoing cancer treatment. “Complex I inhibitors have previously been proposed as a cancer treatment. If these inhibitors show promise in future studies, they could potentially target cancerous cells while sparing oocytes,” explains senior author Dr Elvan Böke, group leader in the Cell & Developmental Biology program at the CRG. The team plan to continue this research to discover the exact energy source that human egg cells use instead of complex I. “One in four cases of female infertility are unexplained – pointing to a huge gap of knowledge in our understanding of female reproduction. Our ambition is to discover the strategies (such as the lack of complex I) oocytes employ to stay healthy for many years in order to find out why these strategies eventually fail with advanced age,” concludes Böke. This article originally appeared on <a href="https://cosmosmagazine.com/science/human-eggs-oocytes-dormant-metabolism/" target="_blank" rel="noopener">cosmosmagazine.com</a> and was written by Imma Perfetto. Image: Shutterstock

Body

Musician sells artworks she created live on stage

Grammy-nominated pop star Halsey is doing her bit to support reproductive rights in the US, as she enters the world of fine arts. Currently on tour around America, Halsey has created five artworks while performing live on stage, with the pieces now for sale at Sotheby’s. All proceeds from the sales will benefit the National Network of Abortion Funds. The drawings are included in the <a href="https://www.sothebys.com/en/buy/auction/2022/contemporary-discoveries-4?locale=en">Contemporary Discoveries</a> exhibition, which features artists such as David Hockney, Andy Warhol, and Os Gêmeos. Halsey’s works are expected to fetch around $7,000 each, with bids currently ranging between $5,500 and $6,500. She created each piece on different nights of her Love and Power Tour, while singing an untitled three-minute song. Hand moving in tandem with the melody, Halsey swiftly brought to life on white canvas androgynous faces punctuated by primary colours. According to the artist, the paintings are meant to symbolise the individual energies of each audience. Halsey has long been an outspoken advocate for women's rights and reproductive healthcare access. After the U.S. Supreme Court overturned Roe V. Wade in July, she <a href="https://www.vogue.com/article/my-abortion-saved-my-life-roe-v-wade-halsey">shared her personal experience</a> with a life-saving abortion procedure in an essay for Vogue. “I miscarried three times before my 24th birthday,” She wrote. “One of my miscarriages required ‘aftercare,’ a gentle way of saying that I would need an abortion, because my body could not terminate the pregnancy completely on its own and I would risk going into sepsis without medical intervention.” “Many people have asked me if, since carrying a child to term after years of struggling to do so, I have reconsidered my stance on abortion,” Halsey continued. “The answer is firmly no. In fact, I have never felt more strongly about it.” Image credits: Getty Images / Sotheby’s

Art

Our Partners

Over 60

News

Shop

Catalogues

Contests

Entertainment

Travel

Health

Lifestyle

Finance

Property

Games

Information

Keep up to date

Search

I’m feeling run down. Why am I more likely to get sick? And how can I boost my immune system?

New support system helps older Aussies who have fallen victim to scams

Australia’s tax system is being weaponised against victims of domestic abuse. Here’s how

Our housing system is broken and the poorest Australians are being hardest hit

“The system is too soft”: Ally Langdon fires up over stabbing death of Vyleen White

What happens to your vagina as you age?

How does Australia’s health system stack up internationally? Not bad, if you’re willing to wait for it

Women and low-income earners miss out in a superannuation system most Australians think is unfair

The $500 million ATO fraud highlights flaws in the myGov ID system. Here’s how to keep your data safe

Outrage after renters confronted with cleaning “scoring system”

An El Niño looms over Australia’s stressed electricity system – and we must plan for the worst

Want an easy $400 a year? Ditch the gas heater in your home for an electric split system

Major overhaul of Aussie superannuation system touted

"You have to beg for help": how our welfare system pressures people to perform vulnerability

Did COVID harm my immune system?

AI system sees beyond the frame of famous artworks

Australia has a new bushfire danger rating system

Anne Heche's blood test results revealed after horror smash

How do human eggs stay dormant and reproductively healthy for decades in the ovaries?

Musician sells artworks she created live on stage

Our Partners