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Could cold sores increase the risk of Alzheimer’s disease?

<div class="theconversation-article-body"> <p>A <a href="https://bmjopen.bmj.com/content/15/5/e093946">new study</a> has found the herpes simplex virus type 1 (HSV-1), which causes cold sores, may be linked to the development of Alzheimer’s disease.</p> <p>This idea is not entirely new. Previous research has suggested there <a href="https://onlinelibrary.wiley.com/doi/10.1002/jmv.1890330403">may be an association</a> between HSV-1 and Alzheimer’s disease, the <a href="https://www.who.int/news-room/fact-sheets/detail/dementia">most common form of dementia</a>.</p> <p>So what can we make of these new findings? And how strong is this link? Let’s take a look at the evidence.</p> <h2>First, what is HSV-1?</h2> <p>HSV-1 is a neurotropic virus, meaning it can infect nerve cells, which send and receive messages to and from the brain. It’s an extremely common virus. The <a href="https://www.who.int/news-room/fact-sheets/detail/herpes-simplex-virus">World Health Organization estimates</a> nearly two-thirds of the global population aged under 50 carries this virus, often unknowingly.</p> <p>An initial infection can cause mild to severe symptoms including fever, headache and muscle aches, and may manifest as blisters and ulcers around the mouth or lips.</p> <p>After this, HSV-1 typically <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC8923070/">lies dormant</a> in the body’s nervous system, sometimes reactivating due to stress or illness. During reactivation, it can cause symptoms such as cold sores, although in many people it doesn’t cause any symptoms.</p> <h2>What did the new research look at?</h2> <p>In a study published this week <a href="https://bmjopen.bmj.com/content/15/5/e093946">in BMJ Open</a>, researchers analysed data from hundreds of thousands of people drawn from a large United States health insurance dataset.</p> <p>They conducted a matched “case-control” analysis involving more than 340,000 adults aged 50 and older diagnosed with Alzheimer’s disease between 2006 and 2021. Each Alzheimer’s disease patient (a “case”) was matched to a control without a diagnosis of Alzheimer’s disease based on factors such as age, sex and geographic region, a method designed to reduce statistical bias.</p> <p>The team then examined how many of these people had a prior diagnosis of HSV-1 and whether they had been prescribed antiviral treatment for the infection.</p> <p>Among people with Alzheimer’s disease, 0.44% had a previous HSV-1 diagnosis, compared to 0.24% of controls. This translates to an 80% increased relative risk of Alzheimer’s disease in those diagnosed with HSV-1, however the absolute numbers are small.</p> <p>The researchers also found people who received antiviral treatment for HSV-1 had roughly a 17% lower risk of developing Alzheimer’s disease compared to those who were untreated.</p> <h2>Not a new hypothesis</h2> <p>This isn’t the first time researchers have speculated about a viral role in Alzheimer’s disease. <a href="https://onlinelibrary.wiley.com/doi/10.1002/jmv.1890330403">Earlier studies</a> have detected <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(96)10149-5/abstract">HSV-1 DNA in postmortem brain tissues</a> from people who had Alzheimer’s disease.</p> <p>Laboratory research has also shown <a href="https://doi.org/10.1016/j.neuron.2018.06.030">HSV-1 can trigger amyloid-beta plaque accumulation</a> in nerve cells and mouse brains. Amyloid-beta plaques are one of the defining features of Alzheimer’s disease pathology, so this has led to speculation that reactivation of the virus may contribute to brain inflammation or damage.</p> <p>But importantly, previous research and the current study show associations, not proof HSV-1 causes Alzheimer’s disease. These links do not confirm the virus initiates or drives disease progression.</p> <blockquote class="bluesky-embed" data-bluesky-uri="at://did:plc:f3ph3ymzcnhpchwqiu4u37g2/app.bsky.feed.post/3lpn5axtbvj2i" data-bluesky-cid="bafyreifwdab7rnvdpu6t3vnupdymct77ojzrhjkwxcndc2lo5b4ipjkvee" data-bluesky-embed-color-mode="system"> <p lang="">Got Cold Sores? You Might Be at Higher Risk for Alzheimer’s https://gizmodo.com/got-cold-sores-you-might-be-at-higher-risk-for-alzheimers-2000603873</p> <p><a href="https://bsky.app/profile/did:plc:f3ph3ymzcnhpchwqiu4u37g2/post/3lpn5axtbvj2i?ref_src=embed">[image or embed]</a></p> <p>— Gizmodo (<a href="https://bsky.app/profile/did:plc:f3ph3ymzcnhpchwqiu4u37g2?ref_src=embed">@gizmodo.com</a>) <a href="https://bsky.app/profile/did:plc:f3ph3ymzcnhpchwqiu4u37g2/post/3lpn5axtbvj2i?ref_src=embed">May 21, 2025 at 8:31 AM</a></p></blockquote> <h2>Some other important caveats</h2> <p>The study relied on insurance claim data, which may not always reflect accurate or timely clinical diagnoses. HSV-1 is also frequently underdiagnosed, especially when symptoms are mild or absent. These points could explain why both the Alzheimer’s group and the control group saw such low rates of HSV-1, when population rates of this virus <a href="https://www.who.int/news-room/fact-sheets/detail/herpes-simplex-virus">are estimated to be far higher</a>.</p> <p>This means many carriers of HSV-1 in the study may have gone unrecorded and therefore makes the link harder to interpret clearly. The dataset also doesn’t capture how often people had recurring symptoms, or the severity or duration of infections – conditions which might influence risk more directly.</p> <p>Another complicating factor is people with HSV-1 might differ in other ways from those without it. Differences in health-care access, the health of a person’s <a href="https://www.thelancet.com/journals/laninf/article/PIIS1473-3099(21)00144-4/fulltext">immune system</a>, <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(24)01296-0/abstract">lifestyle</a>, <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(13)60630-3/abstract">genetics</a>, or even <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(24)01296-0/abstract">education</a> – could all influence Alzheimer’s disease risk.</p> <h2>So should you be concerned if you have cold sores?</h2> <p>The short answer is no – at least not based on current evidence. Most people with HSV-1 will never develop Alzheimer’s disease. The vast majority live with the virus without any serious neurological issues.</p> <p>The “herpes hypothesis” of Alzheimer’s disease is an interesting area for further research, but far from settled science. This study adds weight to the conversation but doesn’t offer a definitive answer.</p> <p>Alzheimer’s disease is a complex condition with <a href="https://www.thelancet.com/commissions-do/dementia-prevention-intervention-and-care">multiple risk factors</a>, including age, genetics, heart health, education, lifestyle and environmental exposures.</p> <p>Infections such as HSV-1 may be one part of a larger, interconnected puzzle, but they are highly unlikely to be the sole cause.</p> <p>With this in mind, the best thing to do is to focus on what we already know can help keep your brain healthy as you age. <a href="https://www.thelancet.com/journals/lancet/article/PIIS0140-6736(25)00184-9/abstract#:%7E:text=Emerging%20evidence%20suggests%20that%20sedentary,impairment%20and%20reduce%20dementia%20risk.">Regular physical activity</a>, <a href="https://www.health.harvard.edu/blog/sleep-well-and-reduce-your-risk-of-dementia-and-death-2021050322508">good quality sleep</a>, <a href="https://www.alzheimers.org.uk/about-dementia/managing-the-risk-of-dementia/reduce-your-risk-of-dementia/social-isolation">social engagement</a>, <a href="https://www.alzheimersresearchuk.org/dementia-information/dementia-risk/diet-and-dementia-risk/">a balanced diet</a> and <a href="https://www.health.harvard.edu/mind-and-mood/protect-your-brain-from-stress">managing stress</a> can all support long-term brain health.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/257140/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/joyce-siette-1377445">Joyce Siette</a>, Associate Professor | Deputy Director, The MARCS Institute for Brain, Behaviour, and Development, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/could-cold-sores-increase-the-risk-of-alzheimers-disease-a-new-study-is-no-cause-for-panic-257140">original article</a>.</em></p> <p><em>Image: Gizmodo</em></p> </div>

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It’s almost winter. Why is Australia still so hot?

<div class="theconversation-article-body"> <p>This year, for many Australians, it feels like summer never left. The sunny days and warm nights have continued well into autumn. Even now, in May, it’s still unusually warm.</p> <p>Much of the southern half of the continent is experiencing both unseasonable warmth and dry conditions. This is linked to persistent high atmospheric pressure (called “blocking”) to the south and southeast of Australia.</p> <p>While temperatures will fall across southern Australia as we approach the winter solstice, early indications are that this winter will be a warm one. Rainfall predictions are less certain.</p> <p>The extra warmth we’ve experienced raises obvious questions about the influence of human-caused climate change. The warming signal is clear and it’s a sign of things to come.</p> <h2>A warm and dry autumn for many</h2> <p><a href="http://www.bom.gov.au/jsp/awap/temp/index.jsp?colour=colour&amp;time=latest&amp;step=1&amp;map=meananom&amp;period=month&amp;area=nat">March</a> and <a href="http://www.bom.gov.au/jsp/awap/temp/index.jsp?colour=colour&amp;time=latest&amp;step=0&amp;map=meananom&amp;period=month&amp;area=nat">April</a> brought unseasonal heat to much of Australia.</p> <p>March was widely hot, with temperatures several degrees above normal across much of the country. But April’s heat was largely restricted to the southeast.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=450&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=450&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=450&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=566&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=566&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/666591/original/file-20250507-68-vjvcb5.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=566&amp;fit=crop&amp;dpr=3 2262w" alt="Graph of rising Australian-average temperatures in March from 1900-2025" /></a><figcaption><span class="caption">Australia had its hottest March on record and the heat has continued, especially in Victoria and parts of New South Wales.</span> <span class="attribution"><a class="source" href="http://www.bom.gov.au/cgi-bin/climate/change/timeseries.cgi?graph=tmean&amp;area=aus&amp;season=03&amp;ave_yr=0&amp;ave_period=6190">Bureau of Meteorology</a></span></figcaption></figure> <p>Victoria had its <a href="http://www.bom.gov.au/cgi-bin/climate/change/timeseries.cgi?graph=tmean&amp;area=vic&amp;season=04&amp;ave_yr=0&amp;ave_period=6190">warmest April</a> on record, and parts of the state experienced temperatures more than 3°C above normal across both March and April.</p> <p>Temperatures normally fall quite quickly over the southeast of Australia during April and May as the days shorten and the continent’s interior cools. But this year, southern Australia was unusually warm at the start of May. Some locations experienced days with maximum temperatures more than 10°C above normal for the time of year.</p> <p>Records were broken in <a href="https://www.skynews.com.au/australia-news/weather/hobart-parts-of-melbourne-sweat-through-hottest-may-night-on-record-as-warm-windy-weather-sweeps-across-australias-southeast/news-story/8b1c76fc40c7a84842a5aaf6a57eb038">Hobart</a> and <a href="https://7news.com.au/news/jane-bunn-weather-tuesdays-balmy-morning-in-melbourne-was-just-shy-of-all-time-record-c-18600201">parts of Melbourne</a>, which had their warmest May nights since observations began.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/666592/original/file-20250507-62-nf86bk.gif?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=3 2262w" alt="GIF of Australian daily maximum temperature anomalies for 1st to 6th May" /></a><figcaption><span class="caption">The start of May saw daytime maximum temperatures across much of Australia well above average for the time of year.</span> <span class="attribution"><a class="source" href="http://www.bom.gov.au/jsp/awap/temp/index.jsp?colour=colour&amp;time=history%2Fnat%2F2025050520250505&amp;step=0&amp;map=maxanom&amp;period=daily&amp;area=nat">Bureau of Meteorology</a></span></figcaption></figure> <p>While Queensland and the New South Wales coast have had very wet spells, including downpours from Tropical Cyclone Alfred at the start of March, other parts of Australia have been quite dry.</p> <p>The area between Adelaide and Melbourne has been exceptionally dry. <a href="http://www.bom.gov.au/climate/maps/rainfall/?variable=rainfall&amp;map=drought&amp;period=3month&amp;region=nat&amp;year=2025&amp;month=04&amp;day=30">A drought is unfolding</a> in the region after a <a href="http://www.bom.gov.au/climate/maps/rainfall/?variable=rainfall&amp;map=drought&amp;period=12month&amp;region=nat&amp;year=2025&amp;month=04&amp;day=30">severe lack of rainfall</a>, with deficits stretching back over the past year or so. Western Tasmania is also suffering from a severe lack of rainfall since the start of autumn, although welcome rain fell in the past week.</p> <p>And it’s not just on land that unusual heat has been observed. The seas around Australia have been warmer than normal, causing severe coral bleaching to <a href="https://theconversation.com/synchronised-bleaching-ningaloo-and-the-great-barrier-reef-are-bleaching-in-unison-for-the-first-time-252906">the west and east</a> of the continent, <a href="https://www.epa.sa.gov.au/environmental_info/water_quality/harmful-algal-blooms">harmful algal blooms</a> and other ecosystem disruptions.</p> <h2>Blocking highs largely to blame</h2> <p>A high pressure system has dominated over the south and southeast of Australia over the past few months.</p> <p>High pressure in the Tasman Sea can sometimes get stuck there for a few days. This leads to what’s known as “blocking”, when the usual passage of weather systems moving from west to east is obstructed. This can lock in weather patterns for several days or even a week.</p> <p>Repeated blocking occurred this autumn. As winds move anticlockwise around high pressure systems in the Southern Hemisphere, blocking highs in the Tasman Sea can bring moist, onshore winds to the New South Wales and Queensland coasts, increasing rainfall. But such high pressure systems also bring drier conditions for the interior of the southeast and much of Victoria and South Australia.</p> <p>Often, these high pressure systems also bring northerly winds to Victoria, and this can cause warmer conditions across much of the state.</p> <p>High pressure systems also tend to bring more clear and sunny conditions, which increases daytime temperatures in particular. Air in high pressure systems moves down towards the surface and this process causes warming, too.</p> <p>Australia sits between the Pacific and Indian Oceans and is subject to their variability, so we often look there to help explain what’s happening with Australia’s climate. In autumn though, our climate influences, such as the El Niño-Southern Oscillation and the Indian Ocean Dipole, are less active and have weaker relationships with Australian climate than at other times of year. Neither of these climate influences is <a href="http://www.bom.gov.au/climate/outlooks/#/overview/influences">in a strong phase</a> at the moment.</p> <h2>A warm winter on the cards</h2> <p>One big question is how long the heat will last. In parts of southeast Australia, including <a href="http://www.bom.gov.au/jsp/ncc/cdio/cvg/av?p_stn_num=086071&amp;p_prim_element_index=0&amp;p_display_type=statGraph&amp;period_of_avg=ALL&amp;normals_years=allYearOfData&amp;staticPage=">Melbourne</a>, average temperatures drop quickly at this time of year as we approach the winter solstice.</p> <p>However, the seasonal outlook from the Bureau of Meteorology points to a high likelihood of a relatively <a href="http://www.bom.gov.au/climate/outlooks/#/temperature/maximum/median/seasonal/0">warm winter</a>.</p> <p>Australians rarely escape having a winter without any significant cold spells, but the long-range forecast suggests we should anticipate above-normal temperatures on average. Both daytime maximum temperatures and nighttime minimum temperatures are expected to be above average generally this winter.</p> <figure><iframe src="https://www.youtube.com/embed/Y5NIa7X2H-s?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Climate and water long-range forecast, issued 1 May 2025 (Bureau of Meteorology)</span></figcaption></figure> <h2>Global warming is here</h2> <p>The elephant in the room is climate change. Human-caused climate change is increasing autumn temperatures and the frequency of late season heat events. As greenhouse gas emissions continue at a <a href="https://theconversation.com/global-carbon-emissions-inch-upwards-in-2024-despite-progress-on-evs-renewables-and-deforestation-243133">record pace</a>, expect continued warming and a greater chance of autumn heatwaves in future.</p> <p>The effect of climate change on rainfall is less clear though. For the vast majority of Australia, there is <a href="https://interactive-atlas.ipcc.ch/regional-information">high uncertainty</a> as to whether autumn will become wetter or drier as the world warms.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/256071/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/andrew-king-103126">Andrew King</a>, Associate Professor in Climate Science, ARC Centre of Excellence for 21st Century Weather, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/its-almost-winter-why-is-australia-still-so-hot-256071">original article</a>.</em></p> <p><em>Image: Supplied</em></p> </div>

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Pagan loaves, Christian bread, a secular treat: a brief history of hot cross buns

<div class="theconversation-article-body">Hot cross buns aren’t just a sweet snack that appears around Easter. They carry centuries of storytelling in their dough. From ancient gods to modern supermarkets, these sticky spiced buns have crossed many borders and beliefs.</p> <p>Today, you can buy them in all kinds of flavours. But their story is far richer than chocolate chips and salted caramel.</p> <h2>Ancient beginnings</h2> <p>In some ancient cultures, bread was more than just food. It was a symbol of faith. Ancient Greeks baked small round loaves marked with crosses to honour their gods. According to some historians, these marks could represent the four seasons or <a href="https://www.ravenhook.com/bread-blog/hot-cross-buns">four phases of the moon</a>.</p> <p>Jewish people have also shared special bread during holy times like Passover, and scholars have debated whether these customs influenced <a href="https://catholiccuisine.blogspot.com/2009/04/hot-cross-buns-history.html">early Christian bread traditions</a>.</p> <p>Pagan Saxons worshipped a spring goddess named <a href="https://en.wikipedia.org/wiki/%C4%92ostre">Eostre</a>. They baked bread during springtime festivals to celebrate new life and longer days. The name “Eostre” is where we get the English word “Easter”. Over time, some of these springtime bread traditions blended with Christian customs.</p> <h2>From Pagan loaves to Christian buns</h2> <p>Early Christians started marking bread with a cross to show their devotion, and ate it throughout the year.</p> <p>They believed <a href="https://www.smh.com.au/goodfood/easter-2016-the-history-of-hot-cross-buns-and-where-to-find-the-best-20160314-gnc8od.html">the cross kept away evil spirits</a> and helped the dough rise. Over time, the Christian view of the bread marked with the cross shifted to focus on <a href="https://theconversation.com/the-roots-of-the-easter-story-where-did-christian-beliefs-about-jesus-resurrection-come-from-221071">Jesus’ crucifixion and became associated with Easter</a>.</p> <figure class="align-right zoomable"><figcaption></figcaption></figure> <p>By the Middle Ages, many bakers only kept the <a href="https://catholiccuisine.blogspot.com/2009/04/hot-cross-buns-history.html">cross on Good Friday bread</a>.</p> <p>According to popular tales, one 12th-century English monk made spiced buns marked with a cross on Good Friday, because that day is the “<a href="https://www.cathedralatl.org/goodfaithpostings/god-defeats-violence-at-the-cross/">Day of the Cross</a>”.</p> <p>Monks often used spices to show <a href="https://austenvariations.com/hot-cross-buns-a-good-friday-tradition/">the day was special</a>. These <a href="https://www.lavenderandlovage.com/2012/03/baking-for-easter-the-history-of-traditional-hot-cross-buns-and-hot-cross-bun-recipe.html">spiced buns</a> helped people remember the crucifixion of Christ and the <a href="https://biblestudylessons.net/articles/BurialSpices.html">spices used in his burial</a>.</p> <p>In 1592, Queen Elizabeth I restricted the sale of spiced bread and buns, perhaps because of religious tensions. England had broken away from the Catholic Church, and new Church of England officials worried that “holy” buns looked too much like <a href="https://www.english-heritage.org.uk/easter/a-history-of-hot-cross-buns/">Catholic superstition</a>. Others say it was an issue of bread prices and profits. Then again maybe they were just <a href="https://www.sandylanefarm.co.uk/c/bakery/easter-hot-cross-buns">too special</a> for just everyday.</p> <p>Under these laws, commercial bakers could only make spiced bread on Christmas, Easter and for funerals.</p> <h2>Good Friday and magic buns</h2> <p>By the 18th century, English street vendors sold “hot cross buns” on Good Friday. We even see an <a href="https://en.wikipedia.org/wiki/Hot_Cross_Buns_(song)">old rhyme</a> about them in Poor Robin’s Almanac in 1733, which says:</p> <blockquote> <p>Good Friday comes this month, the old woman runs, <br />With one a penny, two a penny, hot cross buns.</p> </blockquote> <p>Soon, people believed these Good Friday buns had <a href="https://anglicanfocus.org.au/2020/04/05/raisin-the-curtain-on-the-humble-hot-cross-bun/">magical powers</a>. Some hung them from kitchen rafters, believing they would never go mouldy. They kept them for protection against evil or illness. If someone felt sick, they <a href="https://food52.com/blog/19462-were-hot-cross-buns-the-first-food-fad-a-brief-and-fascinating-history?srsltid=AfmBOorsFIsP1cYUDsCRMIshNIU7Lh2Gq00L0OOgL-VwSAhw_O5Uc7I8">crumbled part of an old hot cross bun</a> into water, hoping it would cure them. Others placed buns in their grain stores to keep pests away.</p> <p>These beliefs might sound odd today, but they were part of daily life for many.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/657956/original/file-20250327-56-yehmhv.jpeg?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/657956/original/file-20250327-56-yehmhv.jpeg?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/657956/original/file-20250327-56-yehmhv.jpeg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=740&fit=crop&dpr=1 600w, https://images.theconversation.com/files/657956/original/file-20250327-56-yehmhv.jpeg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=740&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/657956/original/file-20250327-56-yehmhv.jpeg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=740&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/657956/original/file-20250327-56-yehmhv.jpeg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=930&fit=crop&dpr=1 754w, https://images.theconversation.com/files/657956/original/file-20250327-56-yehmhv.jpeg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=930&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/657956/original/file-20250327-56-yehmhv.jpeg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=930&fit=crop&dpr=3 2262w" alt="Three children and their mother reach for buns in a basket." /></a><figcaption><span class="caption">This hand-coloured etching from 1799 shows a woman selling hot cross buns in London.</span> <span class="attribution"><a class="source" href="https://www.metmuseum.org/art/collection/search/739498">The Metropolitan Museum of Art</a></span></figcaption></figure> <p>In Victorian England, people <a href="https://blog.library.villanova.edu/2016/03/24/hot-cross-buns-a-lenten-treat/">exchanged hot cross buns with friends</a> on Good Friday and said, “Half for you and half for me, between us two good luck shall be”.</p> <p>Whatever ancient superstition the cross once warded off, today it’s the flavour roulette that keeps us coming back. Proof that tradition now serves taste, not fear.</p> <h2>An enduring symbol</h2> <p>Traditional buns contain dried fruit and spices like cinnamon and nutmeg, but many modern versions <a href="https://bakingwithgranny.co.uk/recipe/chocolate-chip-hot-cross-buns/">swap sultanas for chocolate chips</a> or add flavours like salted caramel, orange – or even <a href="https://vegemite.com.au/recipe/cheesy-vegemite-hot-cross-buns/#newsletter">Vegemite and cheese</a>. They have become a secular treat. Yet the crisscross pattern remains on top, hinting at the Christian origins.</p> <p>When you smell a fresh batch of these buns, you’re sharing an experience people enjoyed centuries ago. Ancient Egyptians, Greeks, Poles, Romans, Saxons, medieval monks and 18th-century street sellers all had their versions of spiced, crossed bread. Each group gave the buns its own meaning, from honouring gods to celebrating Christ’s crucifixion and resurrection.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/659209/original/file-20250402-62-oa1v6d.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/659209/original/file-20250402-62-oa1v6d.jpg?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/659209/original/file-20250402-62-oa1v6d.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=603&fit=crop&dpr=1 600w, https://images.theconversation.com/files/659209/original/file-20250402-62-oa1v6d.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=603&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/659209/original/file-20250402-62-oa1v6d.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=603&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/659209/original/file-20250402-62-oa1v6d.jpg?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=758&fit=crop&dpr=1 754w, https://images.theconversation.com/files/659209/original/file-20250402-62-oa1v6d.jpg?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=758&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/659209/original/file-20250402-62-oa1v6d.jpg?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=758&fit=crop&dpr=3 2262w" alt="Colour illustration." /></a><figcaption><span class="caption">A woman giving hot cross buns to two children, in an illustration from 1899.</span> <span class="attribution"><a class="source" href="http://blogs.bl.uk/untoldlives/2015/04/hot-cross-buns.html">British Library</a></span></figcaption></figure> <p>Eating hot cross buns at Easter also shows how traditions change with each generation. At first, they were hard to find outside Good Friday. Now, you might see them in shops just after New Year’s. They once symbolised pagan festivals, then moved into Christian rites, survived royal bans, and sailed through waves of superstition. Yet they remain a symbol of Easter in Australia and around the world.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/246782/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em>By <a href="https://theconversation.com/profiles/darius-von-guttner-sporzynski-112147">Darius von Guttner Sporzynski</a>, Historian, <a href="https://theconversation.com/institutions/australian-catholic-university-747">Australian Catholic University</a></em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/pagan-loaves-christian-bread-a-secular-treat-a-brief-history-of-hot-cross-buns-246782">original article</a>.</em></p> <p><em>Image: Shutterstock</em></p> </div>

Food & Wine

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Aussie TV star wins $9.2m on game show – the largest in history

<p>In an electrifying moment that will surely go down in television history, Australian reality TV star David Genat has claimed a jaw-dropping AUD$9.2 million prize on US television, securing the largest single cash payout ever seen on American TV.</p> <p>The 44-year-old, widely recognised by Aussie audiences from <em>Survivor Australia</em>, <em>Celebrity Apprentice</em>, <em>Rush</em> and <em>Getaway</em>, delivered a masterclass in risk-taking and intuition in NBC’s <em>Deal or No Deal Island</em>.</p> <p>Genat, dubbed the “Survivor golden god” after his 2020 <em>Survivor Australia: All Stars</em> victory, knew he had the upper hand early in the final showdown. But the real twist came when the show’s notorious banker was revealed as none other than Chrissy Teigen.</p> <p>Faced with 26 cases – one containing the life-changing sum of AUD$12.2 million – Genat navigated a nail-biting elimination round, fuelled by his father’s memory and a razor-sharp strategy. Rejecting a staggering seven offers, including multiple million-dollar deals, he played with nerves of steel until just two cases remained.</p> <p>Then came the final offer: a mind-blowing $US5.8 million ($AUD9.2 million). With tension at an all-time high, Genat made the call – he took the deal.</p> <p>It was a decision that paid off in monumental fashion. When his chosen case was opened, it contained just $75. Had he gambled one step further, he would have walked away with next to nothing. Instead, he etched his name into television history with the record-breaking win.</p> <p>“It was surreal,” Genat later shared with <em>USA Today</em>. <span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">“The offer came in at US$5.8 million and I started thinking about it, and that is just so much money. I was having a spiritual experience, man. I just knew where that money was. I knew which cases to open. I was looking for signs from my father, who passed away a couple of years ago. I felt his presence there, and he was just guiding me on what cases to open.”</span></p> <p>That deep connection gave him the clarity to seize the moment and walk away with a life-altering fortune. “My frequency is on another level,” he added. “I fully feel like I’m floating.”</p> <p><span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">With his newfound millions, Genat already has a few indulgences in mind, including a new motorcycle, a luxury watch and some sleek new cars for his four kids.</span></p> <p>But the adventure might not stop here. Rumours are swirling that Genat could be gearing up for another reality TV showdown on the upcoming <em>Survivor: Australia vs. the World</em>, set to air later this year.</p> <p><em>Images: Instagram</em></p>

Money & Banking

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Cold Chisel member's sister dies in tragic accident

<p>Brenda Walker, an award-winning Australian author and the sister of Cold Chisel member Don Walker, has been killed in a horrific accident at Kings Park in Perth. </p> <p>The 67-year-old was crossing Kings Park Road on Tuesday when she was hit by an allegedly speeding driver in a Toyota Yaris hatchback just before 7am on Tuesday. </p> <p>She sustained critical injuries in the incident and was rushed to Royal Perth Hospital but could not be saved.</p> <p>“She was such a kind, intelligent, caring and generous person who had a positive effect on many lives,” her family told 7News.</p> <p>“She will be dearly missed by many.”</p> <p>Walker was born in Grafton, NSW and studied at the University of New England in Armidale before gaining a PhD in English at the Australian National University.</p> <p>She moved to Perth in 1984 and was a Winthrop professor of English and cultural studies at the University of Western Australia.</p> <p>A spokesperson from the university has paid tribute to her saying they were deeply saddened to learn of her death. </p> <p>“Our thoughts and condolences are with Professor Walker’s family and friends at this time." </p> <p>A former student also paid tribute on social media, saying:  “She was a teacher who changed my life with her great encouragement and her astute methods.”</p> <p>“She got into a lot of corners of my life because you only meet a proper guru every so often. It tends to affect you," he continued.</p> <p>“Brenda’s passing is a massive loss to Australian literature, because there are dozens like me with much the same story, and many many more who have met her through her brilliant writing. Her memory will be a monument.” </p> <p>She has written several award-winning novels including <em>Reading By Moonlight, The Wing of the Night </em>and<em> Poe’s Cat.</em></p> <p>A 30-year-old man was allegedly driving the Yaris that struck her and was arrested at the scene. </p> <p>He was charged with dangerous driving causing death and appeared at the Perth Magistrates Court on Wednesday.</p> <p><em>Image: news.com.au/ 7News</em></p>

Caring

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The anatomy of a hot flush – and whether it can really make your head steam

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/michelle-spear-172043">Michelle Spear</a>, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</a></em></p> <p>A hot flush is a phenomenon as disruptive as it is commonplace. One moment, life proceeds as usual. The next, a wave of heat rises, spreading from the chest to the face – leaving behind flushed skin and beads of sweat. For many, this sudden warmth is accompanied by an <a href="https://www.mayoclinic.org/diseases-conditions/hot-flashes/symptoms-causes/syc-20352790">accelerated heartbeat and a faint sense of unease</a>. Though brief – typically lasting anywhere from 30 seconds to five minutes – its intensity can be startling and made worse by unpredictable timing.</p> <p>A recent viral video has brought attention to just how intense a hot flush can be. The video depicts a woman named Tracey Monique <a href="https://uk.style.yahoo.com/menopause-hot-flush-flash-symptoms-134536113.html?guccounter=1">experiencing a hot flush</a> while at an outdoor event. In the video, her head is literally steaming.</p> <p>The sight of wisps of vapour escaping her head highlighted the dramatic effects of this common <a href="https://www.nhs.uk/conditions/menopause/symptoms/">perimenopausal symptom</a>. Often misunderstood or trivialised, the image of a hot flush brings fresh attention to a phenomenon that affects an estimated <a href="https://www.hopkinsmedicine.org/health/conditions-and-diseases/introduction-to-menopause">75% of people experiencing perimenopause</a>.</p> <p>The video has also sparked debate on social media – reflecting the complexity of hot flushes themselves. Some argue the steam escaping Monique’s head was caused by her removing her hat while being in the cold. But many women have commented, saying the video perfectly encapsulates what a hot flush feels like.</p> <p>Let’s take a look at what’s actually happening during a hot flush and why they can feel so severe.</p> <h2>Hormonal instigators</h2> <p>At the heart of a hot flush lies oestrogen – a hormone critical role in regulating body temperature in women. Oestrogen directly <a href="https://my.clevelandclinic.org/health/body/22566-hypothalamus">influences the hypothalamus</a>, a small but essential structure in the brain often referred to as the <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6397692/">body’s thermostat</a>. The hypothalamus monitors and adjusts body temperature to maintain balance.</p> <p>Under normal circumstances, the hypothalamus keeps the body within a narrow temperature range – adjusting blood flow and sweat production as needed. But during perimenopause, <a href="https://www.rcog.org.uk/for-the-public/browse-our-patient-information/treatment-for-symptoms-of-the-menopause/?utm_source=chatgpt.com">oestrogen levels fluctuate</a> unpredictably and eventually decline. These hormonal shifts disrupt the hypothalamus’s ability to maintain its usual set temperature.</p> <p>Declining oestrogen levels also make the hypothalamus overly sensitive to small changes in body temperature – misinterpreting these as <a href="https://pubmed.ncbi.nlm.nih.gov/31001050/">signs of overheating</a>. This triggers an exaggerated response aimed at cooling the body down: a hot flush. The result is a sudden dilation of blood vessels, particularly in the skin of the upper body, to allow heat to radiate outward. Simultaneously, sweat glands activate – intensifying the sensation of heat.</p> <p><a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC3956631/">Luteinising hormone</a>, which primarily regulates ovulation, also plays a secondary role in hot flushes. As oestrogen levels decline, the pituitary gland (which regulates key hormones that control growth, reproduction and metabolism) <a href="https://academic.oup.com/endo/article/163/2/bqab268/6490154">releases erratic surges</a> of lutenising hormone. These spikes appear to further heighten the hypothalamus’s sensitivity, amplifying its misinterpretation of normal body temperature as overheating.</p> <h2>The cooling response</h2> <p>During a hot flush the hypothalamus sends urgent signals to the autonomic nervous system, which governs involuntary functions such as heart rate, blood pressure and sweating. This prompts blood vessels near the skin to dilate – a <a href="https://www.ncbi.nlm.nih.gov/books/NBK557562/">process called vasodilation</a>. This allows more blood to flow to the surface to release heat. This is why the face, neck and chest can feel intensely warm and look visibly flushed during a hot flush.</p> <p>Almost simultaneously, the hypothalamus activates sweat glands in the upper body. Sweating is meant to <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC6773238/">cool the body</a> through evaporation. In cold environments, this sweat may produce visible steam – as seen in Monique’s viral video.</p> <p>But once the hypothalamus realises the body isn’t actually overheated, vasodilation subsides and blood vessels return to their normal state. But the rapid cooling effect from sweating can leave women <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4612529/">feeling chilled</a>. This creates a rollercoaster of sensations during and after the hot flush.</p> <p>This sequence – heat, flush, sweat and chill – reflects the body’s struggle to regain equilibrium in response to a misfiring thermostat.</p> <h2>The debate</h2> <p>While the sensation of heat is undeniable, whether hot flushes significantly raise skin temperature remains debated.</p> <p><a href="https://www.maturitas.org/article/0378-5122(79)90009-4/abstract">Thermographic studies</a>, which use infrared imaging to measure heat patterns and surface temperature, have demonstrated measurable skin temperature rises – particularly in the face, neck and chest.</p> <p>But other research has found only <a href="https://www.obgproject.com/2019/07/24/are-menopausal-hot-flushes-really-triggered-by-core-temperature/">minor or negligible changes</a> in skin temperature. This raises questions about whether the perception of heat correlates directly with physiological changes.</p> <p>Critics suggest that the sensation of heat stems more from the brain’s altered thermoregulation than from actual warming of the skin. Tools such as thermographic imaging may also miss subtle or transient temperature changes – or these changes may be masked by sweat evaporation.</p> <p>It may also be the case that <a href="https://pmc.ncbi.nlm.nih.gov/articles/PMC4612529/">skin temperature changes</a>, like other perimenopausal symptoms, vary widely between people. The <a href="https://bmcwomenshealth.biomedcentral.com/articles/10.1186/1472-6874-9-13">variability in oestrogen levels</a> contributes significantly – with those experiencing more erratic hormonal changes often reporting more intense or frequent flushes. Factors such as <a href="https://www.mdpi.com/2072-6643/16/5/655">genetics, lifestyle and environmental triggers</a>, all add to the diversity of experiences and how intense symptoms might be.</p> <p>Hot flushes are a complex interplay of hormonal, neurological and vascular responses. While the scientific debate about skin temperature changes remains unresolved, the lived experience of heat and discomfort is undeniable. For many, these symptoms are disruptive and even debilitating, profoundly affecting daily life.</p> <p>Monique’s viral video, with the striking image of steam rising from her head, has resonated deeply with countless women – offering stark visual evidence of what they’ve felt but often struggled to articulate. Understanding the anatomy of a hot flush not only sheds light on its mechanisms but also underscores the importance of empathy and tailored approaches to managing this multifaceted symptom.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/244452/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/michelle-spear-172043">Michelle Spear</a>, Professor of Anatomy, <a href="https://theconversation.com/institutions/university-of-bristol-1211">University of Bristol</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/the-anatomy-of-a-hot-flush-and-whether-it-can-really-make-your-head-steam-244452">original article</a>.</em></p> </div>

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New $1m reward for cold case murder of three children

<p>A new $1 million reward is being offered for information about each of the murders of three First Nations children around 34 years ago. </p> <p>Four-year-old Evelyn Greenup, Clinton Speedy-Duroux, 16, and Colleen Walker-Craig, 16, disappeared from Bowraville, a town in northern NSW over a five-month period from September 1990. </p> <p>Evelyn and Clinton's remains were found in nearby bushland, but Colleen's have never been found. </p> <p>The murders were initially investigated separately before being linked by the homicide squad. </p> <p>Now, after various appeals over the decades, NSW Police have issued a re-appeal for information into the murders, with a particular focus on locating the remains of Colleen.</p> <p>“A $1 million reward for information that leads to the arrest and conviction of the person or persons responsible for each of the children’s murder remains in place, as well as for information leading to the location and recovery of Colleen’s remains,” NSW Police said on Monday.</p> <p>Detectives are also going to be spending the week in Bowraville to  speak to locals who may have information about the children's deaths. </p> <p>A man, who can't be named for legal reasons, was acquitted of Clinton's murder in 1994, and Evelyn's murder in 2006. </p> <p>The case was the subject of two police investigations, multiple trials, a coronial inquest, and a parliamentary inquiry. </p> <p>In 2018, the government tried to convince the NSW court of criminal appeal that there was fresh and compelling evidence – related to the disappearance of Colleen – in attempt to overturn the two acquittals and instead have a new single trial on three murder charges. </p> <p>However, the court refused to grant special leave to the NSW government to appeal against the decision. </p> <p>In 2019, hundreds protested in front of the gates of the Court of Appeal when a retrial was denied. </p> <p><em>Images: 7pm TV News NSW/ ABC News</em></p>

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I have a stuffy nose, how can I tell if it’s hay fever, COVID or something else?

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/deryn-thompson-1449312">Deryn Thompson</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p>Hay fever (also called allergic rhinitis) affects <a href="https://www.abs.gov.au/statistics/health/health-conditions-and-risks/national-health-survey-state-and-territory-findings/latest-release">24%</a> of Australians. <a href="https://www.allergy.org.au/patients/allergic-rhinitis-hay-fever-and-sinusitis/allergic-rhinitis-or-hay-fever">Symptoms</a> include sneezing, a runny nose (which may feel blocked or stuffy) and itchy eyes. People can also experience an itchy nose, throat or ears.</p> <p>But COVID is still <a href="https://theconversation.com/xec-is-now-in-australia-heres-what-we-know-about-this-hybrid-covid-variant-239292">spreading</a>, and <a href="https://theconversation.com/i-feel-sick-how-do-i-know-if-i-have-the-flu-covid-rsv-or-something-else-234266">other viruses</a> can cause cold-like symptoms. So how do you know which one you’ve got?</p> <h2>Remind me, how does hay fever cause symptoms?</h2> <p><a href="https://www.allergy.org.au/hp/papers/allergic-rhinitis-clinical-update">Hay fever</a> happens when a person has become “sensitised” to an allergen trigger. This means a person’s body is always primed to react to this trigger.</p> <p>Triggers can include allergens in the air (such as pollen from trees, grasses and flowers), mould spores, animals or house dust mites which mostly live in people’s mattresses and bedding, and feed on shed skin.</p> <p>When the body is exposed to the trigger, it produces IgE (immunoglobulin E) antibodies. These cause the release of many of the body’s own chemicals, including histamine, which result in hay fever symptoms.</p> <p>People who have asthma may find their asthma symptoms (cough, wheeze, tight chest or trouble breathing) worsen when exposed to airborne allergens. Spring and sometimes into summer can be the worst time for people with grass, tree or flower allergies.</p> <p>However, animal and house dust mite symptoms usually happen year-round.</p> <h2>What else might be causing my symptoms?</h2> <p>Hay fever does not cause a fever, sore throat, muscle aches and pains, weakness, loss of taste or smell, nor does it cause you to cough up mucus.</p> <p>These symptoms are likely to be caused by a virus, such as COVID, influenza, respiratory syncytial virus (RSV) or a “cold” (often caused by rhinoviruses). These conditions can occur all year round, with some overlap of symptoms:</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=582&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=582&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=582&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=731&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=731&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/624085/original/file-20241007-16-xf6euv.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=731&amp;fit=crop&amp;dpr=3 2262w" alt="" /></a><figcaption><span class="attribution"><a class="source" href="https://theconversation.com/i-feel-sick-how-do-i-know-if-i-have-the-flu-covid-rsv-or-something-else-234266">Natasha Yates/The Conversation</a></span></figcaption></figure> <p>COVID still <a href="https://theconversation.com/xec-is-now-in-australia-heres-what-we-know-about-this-hybrid-covid-variant-239292">surrounds</a> us. <a href="https://www.sahealth.sa.gov.au/wps/wcm/connect/public+content/sa+health+internet/about+us/health+statistics/surveillance+of+notifiable+conditions/respiratory+infections+dashboard">RSV and influenza</a> rates appear higher than before the COVID pandemic, but it may be <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10888990/#:%7E:text=Increases%20in%20RSV%20patient%20volume,with%20an%20RSV%20diagnosis%20occurred">due to more testing</a>.</p> <p>So if you have a fever, sore throat, muscle aches/pains, weakness, fatigue, or are coughing up mucus, stay home and avoid mixing with others to limit transmission.</p> <p>People with COVID symptoms can take a rapid antigen test (<a href="https://www.health.gov.au/sites/default/files/2024-04/coronavirus-covid-19-rapid-antigen-tests.pdf">RAT</a>), ideally when <a href="https://www.cochrane.org/CD013705/INFECTN_how-accurate-are-rapid-antigen-tests-diagnosing-covid-19">symptoms start</a>, then isolate until symptoms disappear. <a href="https://www.mja.com.au/journal/2023/219/11/covid-19-rapid-antigen-tests-approved-self-testing-australia-published">One negative RAT alone</a> can’t rule out COVID if symptoms are still present, so test again 24–48 hours after your initial test if symptoms persist.</p> <p>You can now test yourself for COVID, RSV and influenza in a <a href="https://www.tga.gov.au/sites/default/files/2024-02/covid-19-rapid-antigen-self-tests-are-approved-australia-ifu-406813.PDF">combined RAT</a>. But again, a negative test doesn’t rule out the virus. If your symptoms continue, <a href="https://www.tga.gov.au/sites/default/files/2024-02/covid-19-rapid-antigen-self-tests-are-approved-australia-ifu-406813.PDF">test again</a> 24–48 hours after the previous test.</p> <h2>If it’s hay fever, how do I treat it?</h2> <p>Treatment involves blocking the body’s histamine release, by taking antihistamine medication which helps reduce the symptoms.</p> <p>Doctors, nurse practitioners and pharmacists can develop a <a href="https://www.allergy.org.au/images/pc/ASCIA_Allergic_Rhinitis_Treatment_Plan_2024.pdf">hay fever care plan</a>. This may include using a nasal spray containing a topical corticosteroid to help reduce the swelling inside the nose, which causes stuffiness or blockage.</p> <p>Nasal sprays need to delivered <a href="https://allergyfacts.org.au/are-you-using-your-nasal-spray-correctly/">using correct technique</a> and used over several weeks to work properly. Often these sprays can also help lessen the itchy eyes of hay fever.</p> <p>Drying bed linen and pyjamas inside during spring can <a href="https://www.allergy.org.au/patients/allergy-treatments/allergen-minimisation">lessen symptoms</a>, as can putting a <a href="https://www.nps.org.au/consumers/managing-hay-fever">smear of Vaseline</a> in the nostrils when going outside. Pollen sticks to the Vaseline, and gently blowing your nose later removes it.</p> <p>People with asthma should also have an <a href="https://asthma.org.au/manage-asthma/asthma-action-plan/">asthma plan</a>, created by their doctor or nurse practitioner, explaining how to adjust their asthma reliever and preventer medications in hay fever seasons or on allergen exposure.</p> <p>People with asthma also need to be <a href="https://www.nationalasthma.org.au/living-with-asthma/resources/patients-carers/factsheets/thunderstorm-asthma">alert for thunderstorms</a>, where pollens can burst into tinier particles, be inhaled deeper in the lungs and cause a severe asthma attack, and even death.</p> <h2>What if it’s COVID, RSV or the flu?</h2> <p>Australians aged 70 and over and others with underlying health conditions who test positive for COVID are <a href="https://www.healthdirect.gov.au/covid-19/medications#at-home">eligible for antivirals</a> to reduce their chance of severe illness.</p> <p>Most other people with COVID, RSV and influenza will recover at home with rest, fluids and paracetamol to relieve symptoms. However some groups are at greater risk of serious illness and may require additional treatment or hospitalisation.</p> <p>For <a href="https://www.health.nsw.gov.au/Infectious/factsheets/Pages/respiratory-syncytial-virus.aspx">RSV</a>, this includes premature infants, babies 12 months and younger, children under two who have other medical conditions, adults over 75, people with heart and lung conditions, or health conditions that lessens the immune system response.</p> <p>For influenza, people at <a href="https://www.health.nsw.gov.au/Infectious/Influenza/Pages/at-risk.aspx">higher risk</a> of severe illness are pregnant women, Aboriginal people, people under five or over 65 years, or people with long-term medical conditions, such as kidney, heart, lung or liver disease, diabetes and decreased immunity.</p> <p>If you’re concerned about severe symptoms of COVID, RSV or influenza, consult your doctor or call 000 in an emergency.</p> <p>If your symptoms are mild but persist, and you’re not sure what’s causing them, book an appointment with your doctor or nurse practitioner. Although hay fever season is here, we need to avoid spreading other serious infectious.</p> <p><em>For more information, you can call the healthdirect helpline on 1800 022 222 (known as NURSE-ON-CALL in Victoria); use the <a href="https://www.healthdirect.gov.au/symptom-checker">online Symptom Checker</a>; or visit <a href="http://healthdirect.gov.au/">healthdirect.gov.au</a> or the <a href="https://www.allergy.org.au/patients/allergy-treatments/allergen-minimisation">Australian Society of Clinical Immunology and Allergy</a>.</em><!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/240453/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/deryn-thompson-1449312">Deryn Thompson</a>, Eczema and Allergy Nurse; Lecturer, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p><em>Image credits: Shutterstock</em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/i-have-a-stuffy-nose-how-can-i-tell-if-its-hay-fever-covid-or-something-else-240453">original article</a>.</em></p> </div>

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Manhunt after stranger pours scalding hot coffee on baby in public park

<p>Queensland Police have released footage of the man they believe burned a baby with a scalding hot drink in a public park. </p> <p>On Wednesday, the unknown man approached the family at Hanlon Park in Brisbane and poured hot coffee on the nine-month-old baby boy.</p> <p>He was rushed to the Queensland Children’s Hospital with burns to his face, upper body and arms, with the burns covering 60 per cent of his body.</p> <p>Queensland Police have now released CCTV footage from the area, showing a man running from the park.</p> <p>He appears approximately 30 to 40 years old, with a proportionate build and tanned skin, and was wearing a black hat, glasses, a shirt and shorts.</p> <p>Anyone who recognises the man has been urged to contact the police with information. </p> <p>An off-duty nurse heard the commotion in the park from the balcony of her apartment, telling <em><a href="https://7news.com.au/news/footage-of-man-who-burnt-baby-with-hot-drink-at-hanlon-park-in-stones-corner-released-c-15856522" target="_blank" rel="noopener">7News</a></em> she went outside to investigate when she heard screaming. </p> <p>She said she heard the child’s mother yelling “my baby, my baby”.</p> <p>The nurse rushed down to the park to help the boy, taking him to her nearby apartment where he was placed under a cold shower before paramedics arrived.</p> <p>Locals told 7News the attack was “terrible” and they were shocked it had happened in their community.</p> <p>“It’s really scary when you think that we haven’t got a community that looks after our young and vulnerable,” one woman said.</p> <p><em>Image credits: Queensland Police</em></p>

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40°C in August? A climate expert explains why Australia is ridiculously hot right now

<div class="theconversation-article-body"><a href="https://theconversation.com/profiles/andrew-king-103126">Andrew King</a>, <em><a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>It’s winter in Australia, but as you’ve probably noticed, the weather is unusually warm. The top temperatures over large parts of the country this weekend were well above average for this time of year.</p> <p>The outback town of Oodnadatta in South Australia recorded 38.5°C on Friday and 39.4°C on Saturday – about 16°C above average. Both days were well above the state’s previous winter temperature record. In large parts of Australia, the heat is expected to persist into the coming week.</p> <p>A high pressure system is bringing this unusual heat – and it’s hanging around. So temperature records have already fallen and may continue to be broken for some towns in the next few days.</p> <p>It’s no secret the world is warming. In fact, 2024 is shaping up to be <a href="https://www.carbonbrief.org/state-of-the-climate-2024-now-very-likely-to-be-warmest-year-on-record/">the hottest year on record</a>. Climate change is upon us. Historical averages are becoming just that: a thing of the past.</p> <p>That’s why this winter heat is concerning. The warming trend will continue for at least as long as we keep burning fossil fuels and polluting the atmosphere. Remember, this is only August. The heatwaves of spring and summer are only going to be hotter.</p> <figure><iframe src="https://www.youtube.com/embed/GmhMKjxEGQo?wmode=transparent&amp;start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Widespread heat forecast for Australia in August, 2024 (Bureau of Meteorology)</span></figcaption></figure> <h2>Records broken across Australia</h2> <p>The Bureau of Meteorology was expecting many records to be broken over the weekend across several states. On Thursday, bureau meteorologist Angus Hines described:</p> <blockquote> <p>A scorching end to winter, with widespread heat around the country in coming days, including the chance of winter records across multiple states for maximum temperature.</p> </blockquote> <p>The amount of heat plunging into central Australia was particularly unusual, Hines said.</p> <p>On Friday, temperatures across northern South Australia and southern parts of the Northern Territory were as much as 15°C above average.</p> <p>Temperatures continued to soar across northern parts of Western Australia over the weekend, with over 40°C recorded at Fitzroy Crossing on Sunday. It has been 2–12°C above average from Townsville all the way down to Melbourne for several days in a row.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/615457/original/file-20240825-18-d8f6ho.gif?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=3 2262w" alt="Animated maximum temperature anomaly map showing heat building across central Australia" /></a><figcaption><span class="caption">Maximum temperature anomalies from August 19-24, showing heat building across Australia.</span> <span class="attribution"><span class="source">Bureau of Meteorology</span>, <a class="license" href="http://creativecommons.org/licenses/by/4.0/">CC BY</a></span></figcaption></figure> <p>Bear in mind, it’s only August. As Hines said, the fire weather season hasn’t yet hit most of Australia – but the current conditions – hot, dry and sometimes windy – are bringing moderate to high fire danger across Australia. It may also bring dusty conditions to central Australia.</p> <p>And for latitudes north of Sydney and Perth, most of the coming week will be warm.</p> <h2>What’s causing the winter warmth?</h2> <p><a href="http://www.bom.gov.au/australia/charts/synoptic_col.shtml">In recent days</a> a stubborn high pressure system has sat over eastern Australia and the Tasman Sea. It has kept skies clear over much of the continent and brought northerly winds over many areas, transporting warm air to the south.</p> <p>High pressure promotes warm weather – both through clearer skies that bring more sunshine, and by promoting the descent of air which <a href="https://media.bom.gov.au/social/blog/2544/explainer-what-influences-air-temperature/">causes heating</a>.</p> <p>By late August, both the intensity of the sun and the length of the day has increased. So the centre of Australia can really warm up when under the right conditions.</p> <p>High pressure in June can be associated with cooler conditions, because more heat is lost from the surface during those long winter nights. But that’s already less of an issue by late August.</p> <p>This kind of weather setup has occurred in the past. Late-winter or early-spring heat does sometimes occur in Australia. However, this warm spell is exceptional, as highlighted by the broken temperature records across the country.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=450&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=450&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=450&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=566&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=566&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/615284/original/file-20240823-20-1mu7h0.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=566&amp;fit=crop&amp;dpr=3 2262w" alt="Graph of August Australian-average temperatures increasing since 1910" /></a><figcaption><span class="caption">August temperatures have been rising over the past century.</span> <span class="attribution"><span class="source">Bureau of Meteorology</span></span></figcaption></figure> <h2>Feeling the heat</h2> <p>The consequences of humanity’s continued greenhouse gas emissions are clear. Australia’s winters are getting warmer overall. And winter “heatwaves” are becoming warmer.</p> <p>Australia’s three warmest Augusts on record have all occurred since 2000 – and <a href="https://theconversation.com/why-is-australia-having-such-a-warm-winter-a-climate-expert-explains-210693">last August was the second-warmest since 1910</a>. When the right weather conditions occur for winter warmth across Australia, the temperatures are higher than a century ago.</p> <p>The warmth we are experiencing now comes off the back of <a href="https://theconversation.com/earth-has-just-ended-a-13-month-streak-of-record-heat-heres-what-to-expect-next-236655">a recent run of global temperature records</a> and <a href="https://theconversation.com/extreme-heat-is-breaking-global-records-why-this-isnt-just-summer-and-what-climate-change-has-to-do-with-it-234249">extreme heat events across the Northern Hemisphere</a>.</p> <p>This warm spell is set to continue, with temperatures above 30°C forecast from Wednesday through to Sunday in Brisbane. The outlook for spring points to continued <a href="http://www.bom.gov.au/climate/outlooks/#/temperature/maximum/median/seasonal/0">above-normal temperatures</a> across the continent, but as always we will likely see both warm and cold spells at times.</p> <p>Such winter warmth is exceptional and already breaking records. Climate change is already increasing the frequency and intensity of this kind of winter heat – and future warm spells will be hotter still, if humanity’s greenhouse gas emissions continue.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/237398/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/andrew-king-103126">Andrew King</a>, Senior Lecturer in Climate Science, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/40-c-in-august-a-climate-expert-explains-why-australia-is-ridiculously-hot-right-now-237398">original article</a>.</em></p> </div>

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I’ve recovered from a cold but I still have a hoarse voice. What should I do?

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/yeptain-leung-1563747">Yeptain Leung</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>Cold, flu, COVID and <a href="https://theconversation.com/rsv-is-everywhere-right-now-what-parents-need-to-know-about-respiratory-syncytial-virus-208855">RSV</a> have been <a href="https://www.abc.net.au/news/2024-06-21/flu-whooping-cough-rsv-cases-up-as-covid-cases-unkown/104002964">circulating across Australia this winter</a>. Many of us have caught and recovered from <a href="https://theconversation.com/i-feel-sick-how-do-i-know-if-i-have-the-flu-covid-rsv-or-something-else-234266">one of these</a> common upper respiratory tract infections.</p> <p>But for some people their impact is ongoing. Even if your throat isn’t <a href="https://theconversation.com/sore-throats-suck-do-throat-lozenges-help-at-all-184454">sore</a> anymore, your voice may still be hoarse or croaky.</p> <p>So what happens to the voice when we get a virus? And what happens after?</p> <p>Here’s what you should know if your voice is still hoarse for days – or even weeks – after your other symptoms have resolved.</p> <h2>Why does my voice get croaky during a cold?</h2> <p>A healthy voice is normally clear and strong. It’s powered by the lungs, which push air past the vocal cords to make them vibrate. These vibrations are amplified in the throat and mouth, creating the voice we hear.</p> <p>The vocal cords are two elastic muscles situated in your throat, around the level of your laryngeal prominence, or Adam’s apple. (Although everyone has one, it tends to be more pronounced in males.) The vocal cords are small and delicate – around the size of your fingernail. Any small change in their structure will affect how the voice sounds.</p> <p>When the vocal cords become inflamed – known as laryngitis – your voice will sound different. Laryngitis is a common part of upper respiratory tract infections, but can also be caused through misuse.</p> <figure class="align-center "><img src="https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=366&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=460&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=460&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/614706/original/file-20240821-17-nzg1mc.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=460&amp;fit=crop&amp;dpr=3 2262w" alt="Two drawn circles comparing normal vocal cords with inflamed, red vocal cords." /><figcaption><span class="caption">Viruses such as the common cold can inflame the vocal cords.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-vector/dry-sore-loss-cough-virus-viral-1821458117">Pepermpron/Shutterstock</a></span></figcaption></figure> <p>Catching a virus triggers the body’s defence mechanisms. White blood cells are recruited to kill the virus and heal the tissues in the vocal cords. They become inflamed, but also stiffer. It’s harder for them to vibrate, so the voice comes out hoarse and croaky.</p> <p>In some instances, you may find it hard to speak in a loud voice or have a reduced pitch range, meaning you can’t go as high or loud as normal. You may even “lose” your voice altogether.</p> <p>Coughing can also make things worse. It is the body’s way of trying to clear the airways of irritation, including your own mucus dripping onto your throat (<a href="https://www.health.harvard.edu/staying-healthy/treatments-for-post-nasal-drip">post-nasal drip</a>). But coughing slams the vocal cords together with force.</p> <p>Chronic coughing can lead to persistent inflammation and even thicken the vocal cords. This thickening is the body trying to protect itself, similar to developing a callus when a pair of new shoes rubs.</p> <p>Thickening on your vocal cords can lead to physical changes in the vocal cords – such as developing a growth or “nodule” – and further deterioration of your voice quality.</p> <figure class="align-center "><img src="https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=376&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=376&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=376&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=473&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=473&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/614707/original/file-20240821-21-vizs73.jpg?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=473&amp;fit=crop&amp;dpr=3 2262w" alt="Diagram compares healthy vocal cords with cords that have nodules, two small bumps." /><figcaption><span class="caption">Coughing and exertion can cause inflamed vocal cords to thicken and develop nodules.</span> <span class="attribution"><a class="source" href="https://www.shutterstock.com/image-vector/dry-sore-loss-cough-virus-viral-1821458126">Pepermpron/Shutterstock</a></span></figcaption></figure> <h2>How can you care for your voice during infection?</h2> <p>People who use their voices a lot professionally – such as teachers, call centre workers and singers – are often desperate to resume their vocal activities. They are <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7478078/">more at risk</a> of forcing their voice before it’s ready.</p> <p>The good news is most viral infections resolve themselves. Your voice is usually restored within five to ten days of recovering from a cold.</p> <p>Occasionally, your pharmacist or doctor may prescribe cough suppressants to limit additional damage to the vocal cords (among other reasons) or mucolytics, which break down mucus. But the most effective treatments for viral upper respiratory tract infections are hydration and rest.</p> <p>Drink plenty of water, avoid alcohol and exposure to cigarette smoke. <a href="https://www.healthdirect.gov.au/laryngitis#:%7E:text=You%20can%20help%20your%20voice%20recover%20by%3A%201,avoid%20nasal%20decongestants%20%28these%20make%20your%20throat%20drier%29">Inhaling steam</a> by making yourself a cup of hot water will also help clear blocked noses and hydrate your vocal cords.</p> <p>Rest your voice by talking as little as possible. If you do need to talk, don’t whisper – this <a href="https://www.sciencedirect.com/science/article/abs/pii/S0892199704001730">strains the muscles</a>.</p> <p>Instead, consider using “<a href="https://www.instagram.com/reel/C0d-oNIMM1y/">confidential voice</a>”. This is a soft voice – not a whisper – that gently vibrates your vocal cords but puts less strain on your voice than normal speech. Think of the voice you use when communicating with someone close by.</p> <p>During the first five to ten days of your infection, it is important not to push through. Exerting the voice by talking a lot or loudly will only exacerbate the situation. Once you’ve recovered from your cold, you can speak as you would normally.</p> <h2>What should you do if your voice is still hoarse after recovery?</h2> <p>If your voice hasn’t returned to normal after <a href="https://www.healthdirect.gov.au/laryngitis">two to three weeks</a>, you should seek medical attention from your doctor, who may refer you to an ear nose and throat specialist.</p> <p>If you’ve developed a nodule, the specialist would likely refer you to a speech pathologist who will show you how to take care of your voice. Many nodules can be <a href="https://britishvoiceassociation.org.uk/voicecare_vocal-nodules.htm">treated</a> with voice therapy and don’t require surgery.</p> <p>You may have also developed a habit of straining your vocal cords, if you forced yourself to speak or sing while they were inflamed. This can be a reason why some people continue to have a hoarse voice even when they’ve recovered from the cold.</p> <p>In those cases, a speech pathologist may play a valuable role. They may teach you to exercises that make voicing more efficient. For example, <a href="https://www.youtube.com/watch?v=fwNPp-RS4IY">lip trills</a> (blowing raspberries) are a fun and easy way you can learn to relax the voice. This can help break the habit of straining your voice you may have developed during infection.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/236398/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/yeptain-leung-1563747">Yeptain Leung</a>, Postdoctoral Research and Lecturer of Speech Pathology, School of Health Sciences, <em><a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>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/ive-recovered-from-a-cold-but-i-still-have-a-hoarse-voice-what-should-i-do-236398">original article</a>.</p> </div>

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No, your aches and pains don’t get worse in the cold. So why do we think they do?

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/manuela-ferreira-161420">Manuela Ferreira</a>, <a href="https://theconversation.com/institutions/george-institute-for-global-health-874">George Institute for Global Health</a> and <a href="https://theconversation.com/profiles/leticia-deveza-1550633">Leticia Deveza</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a></em></p> <p>It’s cold and wet outside. As you get out of bed, you can feel it in your bones. Your right knee is flaring up again. That’ll make it harder for you to walk the dog or go to the gym. You think it must be because of the weather.</p> <p>It’s a common idea, but a myth.</p> <p>When we looked at the evidence, <a href="https://www.sciencedirect.com/science/article/pii/S0049017224000337">we found</a> no direct link between most common aches and pains and the weather. In the first study of its kind, we found no direct link between the temperature or humidity with most joint or muscle aches and pains.</p> <p>So why are so many of us convinced the weather’s to blame? Here’s what we think is really going on.</p> <h2>Weather can be linked to your health</h2> <p>The weather is often associated with the risk of new and ongoing health conditions. For example, cold temperatures <a href="https://pubmed.ncbi.nlm.nih.gov/27021573/">may worsen</a> asthma symptoms. Hot temperatures <a href="https://www.thelancet.com/journals/lanplh/article/PIIS2542-5196(22)00117-6/fulltext">increase the risk</a> of heart problems, such as arrhythmia (irregular heartbeat), cardiac arrest and coronary heart disease.</p> <p>Many people are also convinced the weather is linked to their aches and pains. For example, <a href="https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1479-8077.2004.00099.x?casa_token=jvpSbA4szqoAAAAA%3ATyHyGaqXmfevWyuJe6LW_3Pap3IPHC8HSMTl3RN63mFzNO0X7ozQjBb6Bi3yVFuPjqkrf-WlB-J5A1q1">two in every three</a> people with knee, hip or hand osteoarthritis <a href="https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/1471-2474-15-66">say</a> cold temperatures trigger their symptoms.</p> <p>Musculoskeletal conditions affect more than <a href="https://www.aihw.gov.au/reports/chronic-musculoskeletal-conditions/musculoskeletal-conditions-comorbidity-australia/summary">seven million Australians</a>. So we set out to find out whether weather is really the culprit behind winter flare-ups.</p> <h2>What we did</h2> <p>Very few studies have been specifically and appropriately designed to look for any direct link between weather changes and joint or muscle pain. And ours is the first to evaluate data from these particular studies.</p> <p>We looked at data from more than 15,000 people from around the world. Together, these people reported more than 28,000 episodes of pain, mostly back pain, knee or hip osteoarthritis. People with rheumatoid arthritis and gout were also included.</p> <p>We then compared the frequency of those pain reports between different types of weather: hot or cold, humid or dry, rainy, windy, as well as some combinations (for example, hot and humid versus cold and dry).</p> <h2>What we found</h2> <p>We found changes in air temperature, humidity, air pressure and rainfall do not increase the risk of knee, hip or lower back pain symptoms and are not associated with people seeking care for a new episode of arthritis.</p> <p>The results of this study suggest we do not experience joint or muscle pain flare-ups as a result of changes in the weather, and a cold day will not increase our risk of having knee or back pain.</p> <p>In order words, there is no <em>direct</em> link between the weather and back, knee or hip pain, nor will it give you arthritis.</p> <p>It is important to note, though, that very cold air temperatures (under 10°C) were rarely studied so we cannot make conclusions about worsening symptoms in more extreme changes in the weather.</p> <p>The only exception to our findings was for gout, an inflammatory type of arthritis that can come and go. Here, pain increased in warmer, dry conditions.</p> <p>Gout has a very different underlying biological mechanism to back pain or knee and hip osteoarthritis, which may explain our results. The combination of warm and dry weather may lead to increased dehydration and consequently increased concentration of uric acid in the blood, and deposition of uric acid crystals in the joint in people with gout, resulting in a flare-up.</p> <h2>Why do people blame the weather?</h2> <p>The weather can influence other factors and behaviours that consequently shape how we perceive and manage pain.</p> <p>For example, some people may change their physical activity routine during winter, choosing the couch over the gym. And we know <a href="https://pubmed.ncbi.nlm.nih.gov/28700451/">prolonged sitting</a>, for instance, is directly linked to worse back pain. Others may change their sleep routine or sleep less well when it is either too cold or too warm. Once again, a bad night’s sleep can trigger your <a href="https://link.springer.com/article/10.1007/s00586-021-06730-6">back</a> and <a href="https://www.sciencedirect.com/science/article/pii/S1063458421007020">knee</a> pain.</p> <p>Likewise, changes in mood, often experienced in cold weather, trigger increases in both <a href="https://link.springer.com/article/10.1007/s00586-021-06730-6">back</a> and <a href="https://www.sciencedirect.com/science/article/pii/S1063458421007020">knee</a> pain.</p> <p>So these changes in behaviour over winter may contribute to more aches and pains, and not the weather itself.</p> <p>Believing our pain will feel worse in winter (even if this is not the case) may also make us feel worse in winter. This is known as the <a href="https://link.springer.com/article/10.1186/s12891-018-1943-8">nocebo effect</a>.</p> <h2>What to do about winter aches and pains?</h2> <p>It’s best to focus on risk factors for pain you can control and modify, rather than ones you can’t (such as the weather).</p> <p>You can:</p> <ul> <li> <p>become more physically active. This winter, and throughout the year, aim to walk more, or talk to your health-care provider about gentle exercises you can safely do at home, with a physiotherapist, personal trainer or at the pool</p> </li> <li> <p>lose weight if obese or overweight, as this is linked to <a href="https://jamanetwork.com/journals/jama/article-abstract/2799405">lower levels</a> of joint pain and better physical function</p> </li> <li> <p>keep your body warm in winter if you feel some muscle tension in uncomfortably cold conditions. Also ensure your bedroom is nice and warm as we tend to sleep <a href="https://www.sciencedirect.com/science/article/pii/S0033350623003359">less well</a> in cold rooms</p> </li> <li> <p>maintain a healthy diet and <a href="https://www.thelancet.com/journals/lanrhe/article/PIIS2665-9913(23)00098-X/fulltext">avoid smoking</a> or drinking high levels of alcohol. These are among <a href="https://ard.bmj.com/content/annrheumdis/82/1/48.full.pdf">key lifestyle recommendations</a> to better manage many types of arthritis and musculoskeletal conditions. For people with back pain, for example, a healthy lifestyle is linked with <a href="https://pubmed.ncbi.nlm.nih.gov/36208321/">higher levels</a> of physical function.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/235117/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> </li> </ul> <p><em><a href="https://theconversation.com/profiles/manuela-ferreira-161420">Manuela Ferreira</a>, Professor of Musculoskeletal Health, Head of Musculoskeletal Program, <a href="https://theconversation.com/institutions/george-institute-for-global-health-874">George Institute for Global Health</a> and <a href="https://theconversation.com/profiles/leticia-deveza-1550633">Leticia Deveza</a>, Rheumatologist and Research Fellow, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/no-your-aches-and-pains-dont-get-worse-in-the-cold-so-why-do-we-think-they-do-235117">original article</a>.</em></p> </div>

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Major breakthrough solves 44-year-old cold case

<p>A decades-old mystery surrounding a human jawbone found on Umina Beach on the NSW Central Coast has been solved, thanks to advances in DNA analysis techniques. The jawbone, discovered by a dog walker in June 2020, was recently identified as belonging to a teenager who tragically drowned nearly half a century ago.</p> <p>Police announced the breakthrough in a statement on Sunday, revealing that the jawbone belonged to Henry Coleman, a 17-year-old who died in an accidental drowning on the Central Coast in August 1980. The remains, though blackened, were remarkably well-preserved and still contained some teeth when found on the beach.</p> <p>Detectives initially determined the remains were human and male, but extensive traditional inquiries failed to establish an identity. It wasn't until March 2023 that a major breakthrough was made using new DNA analysis technology. This technology, which combines advanced DNA analysis with traditional genealogy, allowed investigators to use commercial DNA databases to identify suspects and unknown remains.</p> <p>The key to solving the case was a genetic link to a possible living relative. A voluntary DNA sample from this relative confirmed the jawbone belonged to Coleman. The young man had been laid to rest in the 1980s, but it was not known at the time that part of his jaw was missing.</p> <p>Detective Inspector Ritchie Sim highlighted the importance of public participation in resolving missing persons cases. "This investigation showcases the importance of DNA testing in missing person cases," he said. "Without the combined efforts of our detectives, scientists, and analysts, we would not have been able to return these remains to their resting place and provide closure to Mr Coleman’s family."</p> <p>Sim went on to urge those who have reported a family member missing to police, and who have the Event number, to provide their DNA at a local police station. "Just like in Mr Coleman’s case, your relationship with the missing person can be several generations apart," he added.</p> <p><em>Images: 7News</em></p>

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Ted Bundy cold case finally solved after 51 years

<p>In March 1973 the half-naked body of Ann Woodward was found brutally murdered on the floor inside the pub that she owned with her husband.</p> <p>The 46-year-old mother's body was discovered between two pool tables, with <span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">her shirt unbuttoned and </span><span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">pants used to strangle her.</span></p> <p>Her murder has haunted the small US desert town of Moab, Utah for over half a century. While police were never able to find her killer, they believed Ted Bundy was the likely culprit, as he had raped and killed multiple women in the area around the time of her death. </p> <p>While Bundy admitted to thirty murders, his real victim count is unknown. </p> <p>However, they had not been able to prove that he was the culprit due to a lack of evidence, so police assumed she was just another one of his unnamed victims. </p> <p>25 other men, including Douglas Keith Chudomelka, had also been of interest to police after the crime, as witnesses spotted Chudomelka's sedan parked near the victims car on the night of the murder. </p> <p>However, when Chudomelka was interviewed the next day, he denied being at the bar, and insisted that he was at a nearby tavern. </p> <p>His girlfriend at the time, a woman named Joyce, also backed his statement and said he was home at the time of the murder on March 2, 1973. </p> <p>A few months later, Chudomelka was arrested on a domestic violence charge, with an angry Joyce claiming he had been the one who killed Ann Woodward, but she soon retracted her statement. </p> <p>With no new leads, the case went cold, but forward-thinking Police Chief Melvin Dalton, decided to keep DNA evidence from both the victim and all potential suspects anyways, in hopes that one day the right technology would be used to identify the killer. </p> <p>In 2006, Dalton reopened the case, <span style="font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;">but had no luck until September 2023, when Detective Jeremy Dexler decided to uncover the two boxes of evidence collected from the initial investigation and send it to the crime lab. </span></p> <p>The DNA evidence had sat at the Moab police department's storage units for over 50 years and was not easy to locate as it had been moved to another building. </p> <p>The evidence was crucial in solving the cold case. </p> <p>When results from the crime lab came back at the end of May 2024, they confirmed that a substantial amount of Chudomelka’s DNA was on the inside of Ann’s pants and on all of the buttons of her shirt.</p> <p>This was enough to confirm that Chudomelka was the one responsible for Ann Woodward's murder. He was 36 when he committed the crime.</p> <p>Chudomelka was not known to the victim, but Detective Drexler believes that he may have played a game of poker with Ann when he visited the pub, and may have been angry at her for beating him. </p> <p>He added that it could have also been a crime of opportunity rather than rage as he had a violent history. </p> <p>Detective Drexler praised Dalton's forward-thinking for being the reason why they solved the case. </p> <p>“This case hinged on the hair Dalton pulled in 1973,” Drexler said.</p> <p>“I have no idea how he knew that we would be able to do that today. Dalton made this case very easy for us in that aspect.”</p> <p>Chudomelka passed away in 2002 at the age of 67 without ever paying for his crime, but County Lawyer Stephen Stocks believes that if he was still alive, he would've been found guilty of murder. </p> <p>“I hope today brings some closure to the family,”  he said. </p> <p>“I truly believe had this been presented to a jury, Chudomelka would have been found guilty beyond reasonable doubt for the murder of Ann Woodward.”</p> <p><em>Images: Moab Police Department</em></p> <p> </p>

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Southern Australia is freezing. How can it be so cold in a warming climate?

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/andrew-king-103126">Andrew King</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>People living in southern Australia won’t have failed to notice how cold it is. Frosty nights and chilly days have been the weather for many of us since the start of July.</p> <p>As winter continues, we are left wondering how unusual the cold is and whether we can expect several more months of this. Warmer conditions are in the forecast but winter has a long way to go. Further cold snaps could occur.</p> <p>Cold conditions have been in place across southern Australia for the past few days. Temperatures have fallen below zero overnight in many places.</p> <p>It’s not just the nights that have been cold. Maximum temperatures have also been below or well below average across most of the country.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=412&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/604809/original/file-20240704-20-l50kpt.gif?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=518&amp;fit=crop&amp;dpr=3 2262w" alt="" /></a><figcaption><span class="caption">Maximum temperatures have been below average across most of the continent since the last day of June.</span> <span class="attribution"><a class="source" href="http://www.bom.gov.au/jsp/awap/temp/index.jsp">Bureau of Meteorology</a>, <a class="license" href="http://creativecommons.org/licenses/by/4.0/">CC BY</a></span></figcaption></figure> <h2>What’s causing the cold?</h2> <p>A <a href="http://www.bom.gov.au/australia/charts/synoptic_col.shtml">persistent and strong high-pressure system</a> has been hanging around over southeast Australia. The atmospheric pressure was so high it approached the Australian record of 1,044.3 hPa set on June 7 1967. An <a href="https://www.abc.net.au/news/2024-07-04/australias-highest-air-pressure-recorded-weather/104055462">initial observation</a> of a new record has since been disregarded, but nonetheless this is an exceptional, near-record high-pressure pattern.</p> <p>This high-pressure system has kept the weather dry but clear nights have allowed strong cooling of the land surface. The long nights and short days of early July mean that temperatures struggle to rise during the day and can fall quickly in the evenings.</p> <p>In winter we expect cold weather across most of Australia and occasional cold snaps that bring widespread frosty and icy conditions. However, this current cold weather is pretty unusual and we are seeing some records fall.</p> <p>Notably, Tasmania has had its <a href="https://www.weatherzone.com.au/news/tasmanias-2ndcoldest-night-on-record/1889603">lowest July temperature on record</a> and the second-lowest minimum temperature for any time of year with –13.5°C at Liawenee in central Tasmania early on Thursday morning.</p> <p>While Tasmania has produced the most remarkable records, the cold conditions have been unusual elsewhere too. Adelaide recorded its lowest temperature in 18 years on Wednesday morning. And many suburbs of Melbourne experienced a sub-zero night and consecutive nights of <a href="https://www.metoffice.gov.uk/weather/learn-about/weather/types-of-weather/frost-and-ice/frost">ground frost</a>.</p> <h2>Winters are warming but cold spells still occur</h2> <p>As the world is warming, it might seem surprising we can still break cold records. Indeed, across Australia <a href="http://www.bom.gov.au/cgi-bin/climate/change/timeseries.cgi?graph=tmean&amp;area=aus&amp;season=0608&amp;ave_yr=0&amp;ave_period=6190">winters have been warming</a>. The <a href="http://www.bom.gov.au/cgi-bin/climate/change/extremes/trendmaps.cgi?map=CN05&amp;period=1950">frequency</a> and <a href="http://www.bom.gov.au/cgi-bin/climate/change/extremes/trendmaps.cgi?map=TNmn&amp;period=1950">intensity</a> of very low temperatures have been decreasing over the past few decades.</p> <p>We also see many more hot records than cold records being set in Australia and around the globe. This is <a href="https://theconversation.com/why-hot-weather-records-continue-to-tumble-worldwide-86158">due to human-caused climate change</a>. However, when we have the right weather conditions, cold records are still occasionally broken locally.</p> <p>As we continue to warm the planet, it’s getting harder for us to find cold records, particularly over larger regions or longer time periods. While we still see record cold temperatures at individual weather stations, we won’t see another cold record in the global average temperature and probably not even in the Australian average temperature.</p> <p>As this week shows, we still occasionally get daily cold records in the current climate. But it’s much harder to get record cold months, and record cold years at a given location are almost impossible.</p> <p>As we average weather conditions across locations or over time, the climate change signal becomes clearer over background weather variability. It makes new cold records much less likely to occur.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip"><img src="https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=426&amp;fit=crop&amp;dpr=1 600w, https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=426&amp;fit=crop&amp;dpr=2 1200w, https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=426&amp;fit=crop&amp;dpr=3 1800w, https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=536&amp;fit=crop&amp;dpr=1 754w, https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=536&amp;fit=crop&amp;dpr=2 1508w, https://images.theconversation.com/files/605048/original/file-20240704-21-7ep1rt.png?ixlib=rb-4.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=536&amp;fit=crop&amp;dpr=3 2262w" alt="A graphic showing the increase in annual average temperature for Australia from 1910 to 2023" /></a><figcaption><span class="caption">The climate change signal is becoming clearer as Australia’s annual average temperature continues to increase with each decade, widening the difference from the long-term mean.</span> <span class="attribution"><a class="source" href="http://www.bom.gov.au/climate/current/annual/aus/#tabs=Temperature">Bureau of Meteorology</a>, <a class="license" href="http://creativecommons.org/licenses/by/4.0/">CC BY</a></span></figcaption></figure> <h2>How much longer will this cold snap last?</h2> <p>Southern Australia is experiencing a cold snap at close to the coldest time of year. It’s not long after the winter solstice, when we experience the longest night of the year. We still have a few more cold days and nights ahead in parts of southeastern Australia.</p> <p>By early next week, the forecast suggests <a href="http://www.bom.gov.au/australia/charts/viewer/index.shtml">warmer conditions</a> will return as the high-pressure system moves east and winds turn northerly.</p> <p>The outlook for the rest of winter points firmly to <a href="http://www.bom.gov.au/climate/outlooks/#/overview/summary">above-average daytime and night-time temperatures</a>. This is partly because a historical average (1981–2018) is used and warming since then means above-average temperatures are going to happen most of the time.</p> <p>In any winter, Australia has cold outbreaks. So, even if the next few months are likely to be warmer than normal, we should expect a few cold days and nights at some point. Learning to live with the cold and improving the <a href="https://www.theguardian.com/news/ng-interactive/2024/jul/03/why-so-many-australian-homes-are-either-too-hot-or-too-cold">quality of insulation in Australian homes</a> would help make our winter cold snaps seem a lot less harsh.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/233977/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><a href="https://theconversation.com/profiles/andrew-king-103126"><em>Andrew King</em></a><em>, Senior Lecturer in Climate Science, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/southern-australia-is-freezing-how-can-it-be-so-cold-in-a-warming-climate-233977">original article</a>.</em></p> </div>

Domestic Travel

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Flight attendant reveals the unexpected reason why it's so cold on planes

<p dir="ltr">When it comes to packing essentials in your carry-on for your next flight, many people add a jumper, extra socks, or even their own blanket to their bags. </p> <p dir="ltr">Because one thing’s for sure: you’ll probably be cold on your flight. </p> <p dir="ltr">But have you ever stopped to think of the reason why the cabin of a plane is so cold?</p> <p dir="ltr">According to a Canadian flight attendant, it's to do with keeping you feeling good.</p> <p dir="ltr">Vanessa Settimi told <em>Reader's Digest</em> that a cooler cabin helps passengers who are prone to fainting or have motion sickness during turbulence. </p> <p dir="ltr">She also clarified that despite what travellers may think, cabin crew don’t have control over the cabin temperature.</p> <p dir="ltr">"Temperature in the cabin is controlled by the pilots. Even though travellers often ask to get the temperature turned up during flights, it is kept on the cooler side."</p> <p dir="ltr">She went on to say that the key to staying warm on your next flight is bringing extra layers. </p> <p dir="ltr">"Now this might just be the flight attendant in me," says Settimi, "but you will never catch me flying as a traveller in sandals and a tank top!"</p> <p dir="ltr"><em>Image credits: Shutterstock </em></p>

Travel Trouble

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Cold Chisel share major announcement

<p>Cold Chisel have announced a national tour to celebrate their 50th anniversary. </p> <p>The iconic Aussie rock band will visit a number of capital cities for <a href="https://www.coldchisel.com/tour/" target="_blank" rel="noopener">The Big Five-O tour</a>, which will be a celebration of their biggest hits spanning five decades.</p> <p>The anniversary party will kick off in the NSW city of Armidale on October 5th, paying tribute to the town where they based themselves out of in the early days of their career. </p> <p>In the months after undergoing open heart surgery, Cold Chisel frontman Jimmy Barnes said touring Australia was a number one priority. </p> <p>"The Big Five-0 is a landmark moment," Barnes said.</p> <p>"There have been plenty of times where I never thought I'd live to see this day so I'm going to make the most of it."</p> <p>"I can't wait to celebrate with my mates and with all the fans who have been such a big part of our story. We're gonna smash it!"</p> <p>In addition to the tour, the band will be releasing a Best Of album in August, which is set to be jam packed with all their biggest hits. </p> <p>Check out the dates for The Big Five-O tour below.</p> <ul> <li>October 5 - Petersons Winery, Armidale, NSW (Red Hot Summer tour)</li> <li>October 8 - Gold Coast Convention and Exhibition Centre</li> <li>October 11 - The Entertainment Quarter, Moore Park, Sydney</li> <li>October 15 - WIN Entertainment Centre, Wollongong</li> <li>October 19 - Sandalford Wines, Swan Valley, WA (Red Hot Summer Tour)</li> <li>October 25 - Flemington Racecourse, Melbourne</li> <li>November 2 - Victoria Park, Brisbane</li> <li>November 6 - Newcastle Entertainment Centre</li> <li>November 9 - Victoria Park, Ballarat (Red Hot Summer tour)</li> <li>November 13 - MyState Bank Arena, Hobart</li> <li>November 17 - VAILO Adelaide 500, Post Race Concert, Adelaide</li> </ul> <p>Fan Presale will begin from 12pm on Friday May 31st, while General Public tickets will go on sale from 12pm on June 4th. </p> <p><em>Image credits: SplashNews.com/Shutterstock Editorial </em></p>

Domestic Travel

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Why a cold beer is best – chemically speaking

<p>A quiet moment in a bar has led two researchers to study how alcohol tastes at different temperatures. No, this is real science.</p> <div class="copy"> <p>“Two years ago, Xiaotao Yang and I were drinking beer together. He had just finished his doctorate degree thesis and asked me, ‘what should we do next?’” says Lei Jiang, lead author of a new study <a href="https://doi.org/10.1016/j.matt.2024.03.017" target="_blank" rel="noopener">published</a> in the materials science journal <em>Matter</em>.</p> <p>Yang and Jiang are material scientists at the Chinese Academy of Sciences.</p> <p>“At the time, I was a scientific committee member of one of the biggest Chinese alcoholic beverage companies, and I had the idea to ask the question ‘why does Chinese baijiu have a very particular concentration of alcohol, either 38%–42%, 52%–53%, or 68%–75%?’”</p> <p>Baijiu is a clear grain liquor from East Asia. It’s typically distilled from fermented sorghum (a type of grass), though it is also sometimes made from rice, wheat, barley or millet.</p> <p>“Then we decided, let’s try something, so I put a drop of beer on my hand to see the contact angle,” says Jiang.</p> <p>Contact angle is a measure of surface tension. For example, water has a low contact angle which is why it appears bead-like when placed on a surface. Solutions with high <a href="https://cosmosmagazine.com/health/body-and-mind/debunks-vices-alcohol/">alcohol</a> concentration, however, have a higher contact angle meaning they flatten and spread out.</p> <p>Contact angle also reveals how molecules within the droplet interact with each other and the surface below.</p> <p>After plotting the concentration of ethanol (alcohol) against contact angle, the scientists were surprised with what they found. There is no linear relationship between alcohol concentration and contact angle.</p> <p>Instead, increasing the amount of alcohol leads to a series of plateaus and sharp rises in the plot. Further experiments showed that this arises out of the formation of clusters of ethanol and water in the solutions.</p> <p>At low concentrations, ethanol forms pyramid-like structures around the water molecules. At high concentrations, the ethanol molecules arrange end-to-end in a chain.</p> <p>They also found that these structures change depending on temperature.</p> <p>For example, 38%–42% and 52%–53% ethanol solutions have distinct cluster structures at around room temperature, but this difference disappears at higher temperatures, like 40°C.</p> <p>“Although there is only 1% difference, the taste of baijiu at 51% and 52% is noticeably different; the taste of baijiu at 51% is similar to that of lower alcohol content, such as 38%–42%. So, in order to achieve the same taste at a lower alcohol content, the distribution of baijiu products ranges most within the 38%–42% and 52%–53% categories,” says Jiang.</p> <p>The researchers also found that there is an increase in ethanol chains at 5°C in 5% and 11% ethanol solutions – the concentration range of beer – giving it a more “ethanol-like” taste which is generally preferred.</p> <p>“At low temperature, the tetrahedral (pyramid-shaped) clusters become the low concentration amount, and this is why we drink cold beer,” says Jiang.</p> <p>The researchers say their research could help beverage companies produce the best flavour with the lowest alcohol concentration.</p> <p><em>Image credits: Shutterstock </em></p> <div> <p align="center"><noscript data-spai="1"><em><img decoding="async" fetchpriority="high" class="aligncenter size-full wp-image-198773" src="https://cdn.shortpixel.ai/spai/q_lossy+ret_img+to_auto/cosmosmagazine.com/wp-content/uploads/2023/11/Cosmos-Catch-Up-embed_728x150-1.jpg" data-spai-egr="1" alt="Sign up to our weekly newsletter" width="600" height="154" title="why a cold beer is best – chemically speaking 2"></em></noscript></p> </div> <p><em><!-- Start of tracking content syndication. Please do not remove this section as it allows us to keep track of republished articles --> <img id="cosmos-post-tracker" style="opacity: 0; height: 1px!important; width: 1px!important; border: 0!important; position: absolute!important; z-index: -1!important;" src="https://syndication.cosmosmagazine.com/?id=303282&amp;title=Why+a+cold+beer+is+best+%E2%80%93+chemically+speaking" width="1" height="1" loading="lazy" aria-label="Syndication Tracker" data-spai-target="src" data-spai-orig="" data-spai-exclude="nocdn" /> <!-- End of tracking content syndication --></em></div> <div id="contributors"> <p><em><a href="https://cosmosmagazine.com/science/chemistry/beer-taste-temperature/">This article</a> was originally published on <a href="https://cosmosmagazine.com">Cosmos Magazine</a> and was written by <a href="https://cosmosmagazine.com/contributor/evrim-yazgin/">Evrim Yazgin</a>. </em></p> </div>

Food & Wine

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Dog care below freezing − how to keep your pet warm and safe from cold weather, road salt and more this winter

<div class="theconversation-article-body"> <p><em><a href="https://theconversation.com/profiles/erik-christian-olstad-1505284">Erik Christian Olstad</a>, <a href="https://theconversation.com/institutions/university-of-california-davis-1312">University of California, Davis</a></em></p> <p>Time outside with your dog in the spring, summer and fall can be lovely. Visiting your favorite downtown café on a cool spring morning, going to a favorite dog park on a clear summer evening or going on walks along a river when the leaves are changing color are all wonderful when the weather is favorable. But in much of the country, when winter rolls around, previously hospitable conditions can <a href="https://theconversation.com/is-winter-miserable-for-wildlife-108734">quickly turn chilly and dangerous</a> for people and pups alike.</p> <p>Winter brings some unique challenges for dog owners, since dogs still need activity and socialization during colder seasons. Studies have shown that dog owners are almost 50% less likely to walk their dogs <a href="https://doi.org/10.3390/ani11113302">when the weather gets cold</a>. Knowing the basics of winter safety is critical to maintaining a healthy lifestyle for your dog.</p> <p>I am an <a href="https://www.vetmed.ucdavis.edu/faculty/erik-olstad">assistant professor</a> at the University of California Davis School of Veterinary Medicine who weathered polar vortexes with my dog while living in Michigan early in my career. While I’ve since moved to sunny California, I’ve seen how quickly frigid temperatures can turn dangerous for pets.</p> <h2>Breed and age differences</h2> <p>Not all dogs have the same abilities to deal with cold weather. A short-coated dog like a Chihuahua is much more susceptible to the dangers of cold weather than a thick-coated husky. When the weather dips below 40 degrees Fahrenheit (4 degrees Celsius), the well-acclimated husky may be comfortable, whereas the Chihuahua would shiver and be at risk of hypothermia.</p> <p>Additionally, if your dog is used to warm weather, but you decide to move to a colder region, the dog will need time to acclimate to that colder weather, even if they have a thick coat.</p> <p>Age also affects cold-weather resilience. Puppies and elderly dogs can’t withstand the chill as well as other dogs, but every dog is unique – each may have individual health conditions or physical attributes that make them more or less resilient to cold weather.</p> <h2>When is my dog too cold?</h2> <p>Pet owners should be able to recognize the symptoms of a dog that is getting too cold. Dogs will shiver, and some may vocalize or whine. Dogs may resist putting their feet down on the cold ground, or burrow, or try to find warmth in their environment when they are uncomfortable.</p> <p>Just like people, <a href="https://vcahospitals.com/know-your-pet/frostbite-in-dogs">dogs can get frostbite</a>. And just like people, the signs can take days to appear, making it hard to assess them in the moment. The most common sites for frostbite in dogs are their ears and the tips of their tails. Some of the initial signs of frostbite are skin discoloring, turning paler than normal, or purple, gray or even black; red, blistered skin; swelling; pain at the site; <a href="https://www.britannica.com/science/ulcer">or ulceration</a>.</p> <p>Other <a href="https://vcahospitals.com/know-your-pet/frostbite-in-dogs">serious signs of hypothermia</a> include sluggishness or lethargy, and if you observe them, please visit your veterinarian immediately. A good rule to live by is if it is too cold for you, it is too cold for your dog.</p> <p>Getting your dog a <a href="https://www.cnn.com/cnn-underscored/pets/best-winter-dog-coats-jackets">sweater or jacket</a> and <a href="https://www.akc.org/expert-advice/vets-corner/protect-dogs-paws-snow-ice-salt/">paw covers</a> can provide them with protection from the elements and keep them comfortable. Veterinarians also recommend closely monitoring your dog and limiting their time outside when the temperature nears the freezing point or drops below it.</p> <h2>Road salt dangers</h2> <p>Road salt that treats ice on streets and sidewalks <a href="https://www.cbc.ca/news/canada/kitchener-waterloo/ice-salt-toxic-for-pets-1.5020088">can also harm dogs</a>. When dogs walk on the salt, the sharp, rough edges of the salt crystals can irritate the sensitive skin on their paws.</p> <p>Dogs will often lick their feet when they’re dirty, wet or irritated, and if they ingest any salt doing that, they may face GI upset, dehydration, kidney failure, seizures or even death. Even small amounts of pure salt can <a href="https://www.petpoisonhelpline.com/pet-tips/my-dog-ate-road-salt-will-they-be-okay/">disrupt critical body functions</a> in dogs.</p> <p>Some companies make pet-safe salt, but in public it can be hard to tell what type of salt is on the ground. After walking your dog, wash off their feet or boots. You can also keep their paw fur trimmed to prevent snow from balling up or salt collecting in the fur. Applying a thin layer of petroleum jelly or <a href="https://www.akc.org/expert-advice/lifestyle/how-to-make-your-own-paw-balm-for-winter/">paw pad balm</a> to the skin of the paw pads can also help protect your pet’s paws from irritation.</p> <h2>Antifreeze risks</h2> <p><a href="https://www.britannica.com/science/antifreeze-chemical-substance">Antifreeze, or ethylene glycol</a>, is in most vehicles to prevent the fluids from freezing when it gets cold out. Some people pour antifreeze into their toilets when away from their home to prevent the water in the toilet from freezing.</p> <p>Antifreeze is an exceptionally dangerous chemical to dogs and cats, as it tastes sweet but can be deadly when ingested. If a pet ingests even a small amount of antifreeze, the substance causes a chemical cascade in their body that results in severe kidney damage. If left untreated, the pet may have <a href="https://www.petpoisonhelpline.com/pet-owner-blog/antifreeze-poisoning/">permanent kidney damage or die</a>.</p> <p>There are safer antifreeze options on the market that use ingredients other than ethylene glycol. If your dog ingests antifreeze, please see your veterinarian immediately for treatment.</p> <p>When temperatures dip below freezing, the best thing pet owners can do is keep the time spent outside as minimal as possible. Try some <a href="https://www.akc.org/expert-advice/lifestyle/great-indoor-games-to-play-with-your-dog/">indoor activities</a>, like hide-and-seek with low-calorie treats, fetch or even an interactive obstacle course. Food puzzles can also keep your dog mentally engaged during indoor time.</p> <p>Although winter presents some unique challenges, it can still be an enjoyable and healthy time for you and your canine companion.<!-- Below is The Conversation's page counter tag. Please DO NOT REMOVE. --><img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/221709/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /><!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https://theconversation.com/republishing-guidelines --></p> <p><em><a href="https://theconversation.com/profiles/erik-christian-olstad-1505284">Erik Christian Olstad</a>, Health Sciences Assistant Professor of Clinical Veterinary Medicine, <a href="https://theconversation.com/institutions/university-of-california-davis-1312">University of California, Davis</a></em></p> <p><em>Image credits: Getty Images </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/dog-care-below-freezing-how-to-keep-your-pet-warm-and-safe-from-cold-weather-road-salt-and-more-this-winter-221709">original article</a>.</em></p> </div>

Family & Pets

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Huge reward to help solve cold case of missing mum

<p>Police are offering a $500,000 reward for information to help solve a cold case that suspect was a murder. </p> <p>Tammy Lisa Dyson, also known as Tamela Menzies, was 23 when went missing from the Currumbin area in 1995. </p> <p>The mother of two was picked up from a drug rehab clinic by a woman claiming to be her sister on July 20, 1995 and has not been seen since. </p> <p>Dyson was born and raised in Victoria before moving to Brisbane in 1988, where she worked in the adult entertainment industry under the nickname "Pebbles". </p> <p>Police believe she began mixing with criminals and using drugs while working in strip clubs on the Gold Coast.</p> <p>In early 1995 Dyson arranged for her young sons, Jyles and Rainey, to stay with their grandmother in Victoria temporarily.</p> <p>A few months later she made a distressed call to her sister Olivia, who said she had been assaulted. </p> <p>Olivia and her partner then dropped Dyson off to a drug rehabilitation centre at Currumbin on the Gold Coast, and on July 20, 1995 she was picked up by someone claiming to be her sister. </p> <p>The following day, Tammy completed a statutory declaration signed by a Justice of the Peace in Tweed Heads, giving custody of her children and her possessions to her mother.</p> <p>She also called her sister one last time, with Olivia recalling that Tammy "didn't sound like herself" and she had mentioned underworld figures. </p> <p>Police have received a number of reported sightings of Tammy since 1995 but all proof of life inquiries have  been proven negative.</p> <p>In 2012, the Queensland coroner said that they believed Tammy was deceased and indicated that she may have been a victim of violence, although a certain date, time and cause of death have not been determined. </p> <p>Police are now offering the huge reward for new information and immunity from prosecution for any accomplice who comes forward.</p> <p>"Tammy associated with criminals that were known to police and vanished without a trace after giving custody of her children and possessions to her mother; we believe the circumstances of her disappearance is suspicious," Detective Senior Sergeant Tara Kentwell said.</p> <p>On Wednesday, her sons, who were only three and one when their mother disappeared, made an emotional appeal for public help to find her. </p> <p>"Growing up without mum and not knowing what happened to her has been very hard," Jyles Lebler said through tears during a media conference. </p> <p>"Whoever has picked her up, I'm not saying they have done something but they must know something bad has happened."</p> <p>"We hope we find out what to mum to give grandma some closure before it's too late," Rainey added.</p> <p><em>Images: Queensland Police</em></p>

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