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What’s the difference between a heart attack and cardiac arrest? One’s about plumbing, the other wiring

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/michael-todorovic-1210507">Michael Todorovic</a>, <a href="https://theconversation.com/institutions/bond-university-863">Bond University</a> and <a href="https://theconversation.com/profiles/matthew-barton-1184088">Matthew Barton</a>, <a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p>In July 2023, rising US basketball star Bronny James collapsed on the court during practice and was sent to hospital. The 18-year-old athlete, son of famous LA Lakers’ veteran LeBron James, had experienced a <a href="https://apnews.com/article/bronny-james-cardiac-arrest-3953eee8789e83f3cccfb6dd798bc54e">cardiac arrest</a>.</p> <p>Many media outlets incorrectly referred to the event as a “<a href="https://en.as.com/nba/lebron-james-son-bronny-plays-for-the-usc-trojans-for-the-first-time-since-suffering-a-heart-attack-n/">heart attack</a>” or used the terms interchangeably.</p> <p>A cardiac arrest and a heart attack are distinct yet overlapping concepts associated with the heart.</p> <p>With some background in <a href="https://www.youtube.com/watch?v=uKrgEv7-rVM&t=16s">how the heart works</a>, we can see how they differ and how they’re related.</p> <h2>Understanding the heart</h2> <p>The heart is a muscle that contracts to work as a pump. When it contracts it pushes blood – containing oxygen and nutrients – to all the tissues of our body.</p> <p>For the heart muscle to work effectively as a pump, it needs to be fed its own blood supply, delivered by the coronary arteries. If these arteries are blocked, the heart muscle doesn’t get the blood it needs.</p> <p>This can cause the heart muscle to become injured or die, and results in the heart not pumping properly.</p> <h2>Heart attack or cardiac arrest?</h2> <p>Simply put, a heart attack, technically known as a myocardial infarction, describes injury to, or death of, the heart muscle.</p> <p>A cardiac arrest, sometimes called a sudden cardiac arrest, is when the heart stops beating, or put another way, stops working as an effective pump.</p> <p>In other words, both relate to the heart not working as it should, but for different reasons. As we’ll see later, one can lead to the other.</p> <h2>Why do they happen? Who’s at risk?</h2> <p>Heart attacks typically result from blockages in the coronary arteries. Sometimes this is called coronary artery disease, but in Australia, we tend to refer to it as ischaemic heart disease.</p> <p>The underlying cause in about <a href="https://www.ncbi.nlm.nih.gov/books/NBK507799/#:%7E:text=It%20has%20been%20reported%20that,increases%20beyond%20age%2050%20years.">75% of people</a> is a process called <a href="https://youtu.be/jwL4lkSlvSA?si=H2as7dQkhbIqWWkU">atherosclerosis</a>. This is where fatty and fibrous tissue build up in the walls of the coronary arteries, forming a plaque. The plaque can block the blood vessel or, in some instances, lead to the formation of a blood clot.</p> <p>Atherosclerosis is a long-term, stealthy process, with a number of risk factors that can sneak up on anyone. High blood pressure, high cholesterol, diet, diabetes, stress, and your genes have all been implicated in this plaque-building process.</p> <p>Other causes of heart attacks include spasms of the coronary arteries (causing them to constrict), chest trauma, or anything else that reduces blood flow to the heart muscle.</p> <p>Regardless of the cause, blocking or reducing the flow of blood through these pipes can result in the heart muscle not receiving enough oxygen and nutrients. So cells in the heart muscle can be injured or die.</p> <figure class="align-center zoomable"><a href="https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=45&auto=format&w=1000&fit=clip"><img src="https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&fit=clip" sizes="(min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px" srcset="https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=45&auto=format&w=600&h=338&fit=crop&dpr=1 600w, https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=30&auto=format&w=600&h=338&fit=crop&dpr=2 1200w, https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=15&auto=format&w=600&h=338&fit=crop&dpr=3 1800w, https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=45&auto=format&w=754&h=424&fit=crop&dpr=1 754w, https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=30&auto=format&w=754&h=424&fit=crop&dpr=2 1508w, https://images.theconversation.com/files/597616/original/file-20240531-17-o2j0w.png?ixlib=rb-4.1.0&q=15&auto=format&w=754&h=424&fit=crop&dpr=3 2262w" alt="Heart attack vs cardiac arrest" /></a><figcaption><span class="caption">Here’s a simple way to remember the difference.</span> <span class="attribution"><span class="source">Author provided</span></span></figcaption></figure> <p>But a cardiac arrest is the result of heartbeat irregularities, making it harder for the heart to pump blood effectively around the body. These heartbeat irregularities are generally due to <a href="https://www.youtube.com/watch?v=M_soKG-Tzh0&t=903s">electrical malfunctions</a> in the heart. There are four distinct types:</p> <ul> <li> <p><strong>ventricular tachycardia:</strong> a rapid and abnormal heart rhythm in which the heartbeat is more than <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10541285/">100 beats per minute</a> (normal adult, resting heart rate is generally 60-90 beats per minute). This fast heart rate prevents the heart from filling with blood and thus pumping adequately</p> </li> <li> <p><strong>ventricular fibrillation:</strong> instead of regular beats, the heart quivers or “fibrillates”, resembling a bag of worms, resulting in an irregular heartbeat greater than 300 beats per minute</p> </li> <li> <p><strong>pulseless electrical activity:</strong> arises when the heart muscle fails to generate sufficient pumping force after electrical stimulation, resulting in no pulse</p> </li> <li> <p><strong>asystole:</strong> the classic flat-line heart rhythm you see in movies, indicating no electrical activity in the heart.</p> </li> </ul> <p>Cardiac arrest can arise from numerous underlying conditions, both heart-related and not, such as drowning, trauma, asphyxia, electrical shock and drug overdose. James’ cardiac arrest was attributed to a <a href="https://www.espn.com.au/mens-college-basketball/story/_/id/38260006/bronny-james-cardiac-arrest-caused-congenital-heart-defect">congenital heart defect</a>, a heart condition he was born with.</p> <p>But among the many causes of a cardiac arrest, ischaemic heart disease, such as a heart attack, stands out as the most common cause, accounting <a href="https://pubmed.ncbi.nlm.nih.gov/11898927/">for 70%</a> of all cases.</p> <p>So how can a heart attack cause a cardiac arrest? You’ll remember that during a heart attack, heart muscle can be damaged or parts of it may die. This damaged or dead tissue can disrupt the heart’s ability to conduct electrical signals, increasing the risk of developing arrhythmias, possibly causing a cardiac arrest.</p> <p>So while a heart attack is a common cause of cardiac arrest, a cardiac arrest generally does not cause a heart attack.</p> <h2>What do they look like?</h2> <p>Because a cardiac arrest results in the sudden loss of effective heart pumping, the most common signs and symptoms are a sudden loss of consciousness, absence of pulse or heartbeat, stopping of breathing, and pale or blue-tinged skin.</p> <p>But the common signs and symptoms of a heart attack include chest pain or discomfort, which can show up in other regions of the body such as the arms, back, neck, jaw, or stomach. Also frequent are shortness of breath, nausea, light-headedness, looking pale, and sweating.</p> <h2>What’s the take-home message?</h2> <p>While both heart attack and cardiac arrest are disorders related to the heart, they differ in their mechanisms and outcomes.</p> <p>A heart attack is like a blockage in the plumbing supplying water to a house. But a cardiac arrest is like an electrical malfunction in the house’s wiring.</p> <p>Despite their different nature both conditions can have severe consequences and require immediate medical attention.<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/229633/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><a href="https://theconversation.com/profiles/michael-todorovic-1210507">Michael Todorovic</a>, Associate Professor of Medicine, <em><a href="https://theconversation.com/institutions/bond-university-863">Bond University</a></em> and <a href="https://theconversation.com/profiles/matthew-barton-1184088">Matthew Barton</a>, Senior lecturer, School of Nursing and Midwifery, <em><a href="https://theconversation.com/institutions/griffith-university-828">Griffith University</a></em></p> <p><em>Image credits: Shutterstock</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/whats-the-difference-between-a-heart-attack-and-cardiac-arrest-ones-about-plumbing-the-other-wiring-229633">original article</a>.</p> </div>

Body

Constipation increases your risk of a heart attack, new study finds – and not just on the toilet

<p><em><a href="https://theconversation.com/profiles/vincent-ho-141549">Vincent Ho</a>, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a></em></p> <p>If you Google the terms “constipation” and “heart attack” it’s not long before the name Elvis Presley crops up. Elvis had a longstanding history of chronic constipation and <a href="https://www.pbs.org/newshour/health/elvis-addiction-was-the-perfect-prescription-for-an-early-death">it’s believed</a> he was straining very hard to poo, which then led to a fatal heart attack.</p> <p>We don’t know what really happened to the so-called King of Rock “n” Roll back in 1977. There were likely several contributing factors to his death, and this theory is one of many.</p> <p>But after this famous case researchers took a strong interest in the link between constipation and the risk of a heart attack.</p> <p>This includes a recent <a href="https://journals.physiology.org/doi/abs/10.1152/ajpheart.00519.2024">study</a> led by Australian researchers involving data from thousands of people.</p> <h2>Are constipation and heart attacks linked?</h2> <p>Large <a href="https://www.nature.com/articles/s41598-023-38068-y">population</a> <a href="https://pubmed.ncbi.nlm.nih.gov/32873621/">studies</a> show constipation is linked to an increased risk of heart attacks.</p> <p>For example, an <a href="https://www.nature.com/articles/s41598-023-38068-y">Australian study</a> involved more than 540,000 people over 60 in hospital for a range of conditions. It found constipated patients had a higher risk of high blood pressure, heart attacks and strokes compared to non-constipated patients of the same age.</p> <p>A <a href="https://pubmed.ncbi.nlm.nih.gov/32873621/">Danish study</a> of more than 900,000 people from hospitals and hospital outpatient clinics also found that people who were constipated had an increased risk of heart attacks and strokes.</p> <p>It was unclear, however, if this relationship between constipation and an increased risk of heart attacks and strokes would hold true for healthy people outside hospital.</p> <p>These Australian and Danish studies also did not factor in the effects of drugs used to treat high blood pressure (hypertension), which can make you constipated.</p> <h2>How about this new study?</h2> <p>The recent <a href="https://journals.physiology.org/doi/abs/10.1152/ajpheart.00519.2024">international study</a> led by Monash University researchers found a connection between constipation and an increased risk of heart attacks, strokes and heart failure in a general population.</p> <p>The researchers analysed data from the <a href="https://www.ukbiobank.ac.uk">UK Biobank</a>, a database of health-related information from about half a million people in the United Kingdom.</p> <p>The researchers identified more than 23,000 cases of constipation and accounted for the effect of drugs to treat high blood pressure, which can lead to constipation.</p> <p>People with constipation (identified through medical records or via a questionnaire) were twice as likely to have a heart attack, stroke or heart failure as those without constipation.</p> <p>The researchers found a strong link between high blood pressure and constipation. Individuals with hypertension who were also constipated had a 34% increased risk of a major heart event compared to those with just hypertension.</p> <p>The study only looked at the data from people of European ancestry. However, there is good reason to believe the link between constipation and heart attacks applies to other populations.</p> <p>A <a href="https://pubmed.ncbi.nlm.nih.gov/26812003/">Japanese study</a> looked at more than 45,000 men and women in the general population. It found people passing a bowel motion once every two to three days had a higher risk of dying from heart disease compared with ones who passed at least one bowel motion a day.</p> <h2>How might constipation cause a heart attack?</h2> <p>Chronic constipation can lead to straining when passing a stool. This can result in <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8030287/">laboured breathing</a> and can lead to a rise in blood pressure.</p> <p>In <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8030287/">one Japanese study</a> including ten elderly people, blood pressure was high just before passing a bowel motion and continued to rise during the bowel motion. This increase in blood pressure lasted for an hour afterwards, a pattern not seen in younger Japanese people.</p> <p><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8030287/">One theory</a> is that older people have stiffer blood vessels due to atherosclerosis (thickening or hardening of the arteries caused by a build-up of plaque) and other age-related changes. So their high blood pressure can persist for some time after straining. But the blood pressure of younger people returns quickly to normal as they have more elastic blood vessels.</p> <p>As blood pressure rises, the risk of heart disease increases. The risk of developing heart disease <a href="https://pubmed.ncbi.nlm.nih.gov/12493255/">doubles</a> when systolic blood pressure (the top number in your blood pressure reading) rises permanently by 20 mmHg (millimetres of mercury, a standard measure of blood pressure).</p> <p>The systolic blood pressure rise with straining in passing a stool has been <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8030287/">reported to be</a> as high as 70 mmHg. This rise is only temporary but with persistent straining in chronic constipation this could lead to an increased risk of heart attacks.</p> <p><a href="https://pubmed.ncbi.nlm.nih.gov/22256893/">Some people</a> with chronic constipation may have an impaired function of their vagus nerve, which controls various bodily functions, including digestion, heart rate and breathing.</p> <p>This impaired function can result in abnormalities of heart rate and over-activation of the flight-fight response. This can, in turn, lead to elevated blood pressure.</p> <p>Another intriguing avenue of <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6399019/">research</a> examines the imbalance in gut bacteria in people with <a href="https://pubmed.ncbi.nlm.nih.gov/3596341/">constipation</a>.</p> <p>This imbalance, known as dysbiosis, can result in microbes and other substances leaking through the gut barrier into the bloodstream and triggering an immune response. This, in turn, can lead to low-grade inflammation in the blood circulation and arteries becoming stiffer, increasing the risk of a heart attack.</p> <p>This latest study also explored genetic links between constipation and heart disease. The researchers found shared genetic factors that underlie both constipation and heart disease.</p> <h2>What can we do about this?</h2> <p>Constipation affects around <a href="https://pubmed.ncbi.nlm.nih.gov/36826591/">19% of the global population</a> aged 60 and older. So there is a substantial portion of the population at an increased risk of heart disease due to their bowel health.</p> <p>Managing chronic constipation through dietary changes (particularly increased dietary fibre), increased physical activity, ensuring adequate hydration and using medications, if necessary, are all important ways to help improve bowel function and reduce the risk of heart disease.<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/237209/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><a href="https://theconversation.com/profiles/vincent-ho-141549"><em>Vincent Ho</em></a><em>, Associate Professor and clinical academic gastroenterologist, <a href="https://theconversation.com/institutions/western-sydney-university-1092">Western Sydney University</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/constipation-increases-your-risk-of-a-heart-attack-new-study-finds-and-not-just-on-the-toilet-237209">original article</a>.</em></p>

Body

"My heart is broken": Mariah Carey reveals sad double tragedy

<p>Mariah Carey has revealed a devastating double tragedy, as both her mother and sister passed away on the same day. </p> <p>In a heartbreaking statement to <em><a href="https://people.com/mariah-carey-mom-patricia-sister-alison-both-died-same-day-exclusive-8701561" target="_blank" rel="noopener">People</a></em>, the singer announced the deaths of her mum Patricia, 87, and sister Alison, 63, who died over the weekend. </p> <p>Carey's statement read, "My heart is broken that I've lost my mother this past weekend. Sadly, in a tragic turn of events, my sister lost her life on the same day."</p> <p>"I feel blessed that I was able to spend the last week with my mom before she passed."</p> <p>"I appreciate everyone's love and support and respect for my privacy during this impossible time."</p> <p>No cause of death has been revealed for either member of the family. </p> <p>Carey famously had a turbulent relationship with her mother and sister over the years, and was estranged from Alison for three decades before her untimely death.</p> <p>In 2016, Alison, who was a recovering drug addict, made a plea to her famous sister through the Daily Mail to ask for support, saying, "Mariah I love you, I desperately need your help."</p> <p>As well as substance abuse, Alison endured homelessness throughout her life and tested positive for the HIV virus. </p> <p>Mariah opened up about complicated relationships with her mom and sister in her 2020 memoir, <em>The Meaning Of Mariah Carey</em>.</p> <p>"Like many aspects of my life, my journey with my mother has been full of contradictions and competing realities. It's never been only black-and-white — it's been a whole rainbow of emotions," she explained. </p> <p>She said their relationship was a "prickly rope of pride, pain, shame, gratitude, jealousy, admiration, and disappointment", however the book was still dedicated to Patricia.</p> <p>"And to Pat, my mother, who, through it all, I do believe actually did the best she could," the singer penned in the dedication. "I will love you the best I can, always."</p> <p><em>Image credits: Paul Archuleta/Shutterstock Editorial </em></p>

Family & Pets

From maxing out to slowing down, how much do heart rates vary across sports?

<div class="theconversation-article-body"><em><a href="https://theconversation.com/profiles/theresa-larkin-952095">Theresa Larkin</a>, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a> and <a href="https://theconversation.com/profiles/gregory-peoples-1556509">Gregory Peoples</a>, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a></em></p> <p>A classic image of the Olympics and Paralympics is an athlete at the end of a race struggling for breath, their heart obviously racing.</p> <p>But at the other end of the scale are athletes such as archers and shooters, who need to slow their heart rates down as much as possible.</p> <p>Athletes in speed and endurance events regularly push their heart rate to the maximum. But these athletes usually have low heart rates at rest.</p> <p>What causes our heart rates and respiratory (breathing) rates to change so much, and is this healthy?</p> <h2>When heart rates and respiratory rates rise</h2> <p>If you are still and calm as you read this, your heart is probably beating 60–100 times per minute and you are likely breathing 12–20 times per minute.</p> <p>These are the <a href="https://theconversation.com/what-should-my-heart-rate-be-and-what-affects-it-98945">normal ranges for a resting adult</a>.</p> <p>During physical activity when muscles are contracting, the muscles need more oxygen to provide them with energy to work.</p> <p>To deliver this extra oxygen (<a href="https://theconversation.com/curious-kids-why-is-blood-red-229121#:%7E:text=Haemoglobin%20is%20like%20a%20red,oxygen%2C%20our%20blood%20is%20red.">carried in our blood</a>), our heart pumps blood faster. In other words, our heart rate increases.</p> <p>We also breathe faster to get more oxygen into our lungs to be delivered to the exercising muscles.</p> <figure><iframe src="https://www.youtube.com/embed/3YOap5k0R_8?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Your resting heart rate can tell you plenty about your health and fitness.</span></figcaption></figure> <h2>How fast can our heart rate get during exercise?</h2> <p>Aerobic means “with oxygen”. In <a href="https://my.clevelandclinic.org/health/articles/7050-aerobic-exercise">aerobic exercise</a> (“cardio”) you use large muscles repetitively and rhythmically. For example, walking, running, cycling, swimming and rowing.</p> <p>Muscles that are contracting during aerobic exercise use a lot of energy and need ten times <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4551211/">more oxygen than at rest</a>.</p> <p>High intensity aerobic events that involve large muscles or the entire body cause the highest heart rates.</p> <p>An <a href="https://www.heartonline.org.au/resources/calculators/target-heart-rate-calculator">estimate</a> of maximum heart rate (beats per minute) is 220 minus your age. This equates to 195 beats per minute for a 25-year-old – close to the average age of the Australian Olympic team of 26.5 years.</p> <p>Athletes competing in Olympic events of endurance or speed will reach their maximum heart rate.</p> <p>You can usually only maintain maximum heart rate for a few minutes. But in a 2000-metre rowing race, the rowers maintain intense effort at close to maximum heart rate for 6–8 minutes.</p> <p>This is one of the toughest events for the heart. It’s no wonder rowers often collapse in the boat <a href="https://www.bbc.com/news/uk-england-cambridgeshire-68731840">as they cross the finish line</a>.</p> <p>Highly trained endurance athletes can have a maximum heart rate higher than expected for their age. <a href="https://olympics.com/en/athletes/eliud-kipchoge">Eliud Kipchoge</a> from Kenya is considered the greatest marathon runner of all time. During his <a href="https://au.coros.com/stories?world-record">world record run</a> in the 2022 Berlin marathon, he ran with a heart rate of around 180 beats per minute for almost the entire race.</p> <h2>How does breathing change with exercise?</h2> <p>Our breathing changes with exercise to increase oxygen uptake from the air.</p> <p>At low-to-moderate intensity exercise, you start to take deeper breaths. This brings in more air and oxygen with each breath. However, there is a limit to how much the chest can expand.</p> <p>With higher intensity exercise, respiratory rate increases to increase oxygen intake.</p> <p>Elite athletes can breathe <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4818249/">more than 50 times</a> per minute. This is driven by <a href="https://theconversation.com/what-is-breathwork-and-do-i-need-to-do-it-231192">our diaphragm</a>, the most important muscle of breathing.</p> <p><a href="https://www.abc.net.au/news/2024-07-28/paris-olympics-grace-brown-cycling-gold-medal-australia/104151466">Grace Brown</a>, Olympic gold medal cyclist in Paris, <a href="https://inscyd.com/article/grace-brown-olympic-gold-physiology/">breathes close to a maximal oxygen uptake</a> when she is cycling at high intensity.</p> <h2>Some athletes need to slow things down</h2> <p>Archery and shooting athletes perform better with a lower heart rate. They time their shots to be <a href="https://pubmed.ncbi.nlm.nih.gov/3580727/#:%7E:text=Results%20showed%20that%20the%20champion,both%20during%20diastole%20and%20systole">between heart beats</a> when the body is the most still.</p> <p>This is easier with a slower heart rate, with more time between beats.</p> <p>Archers consciously lower their heart rate <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6441821/">prior to shooting</a> by <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6721071/">slowing their breathing</a>.</p> <p>Other Olympians use <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10224217/#:%7E:text=For%20practicing%20slow%20and%20deep,minutes%20before%20starting%20the%20exercise.">breathing techniques</a> to calm pre-race anticipation and high heart rates.</p> <p>Slowing the breath, <a href="https://theconversation.com/what-is-breathwork-and-do-i-need-to-do-it-231192">especially the exhale</a>, is the best way to lower your heart rate.</p> <p>Beta-blockers also reduce heart rate, by blocking adrenaline. This is why they are on the <a href="https://www.wada-ama.org/en/prohibited-list">prohibited substances list</a> of the World Anti-Doping Agency.</p> <h2>What about resting heart rates?</h2> <p>Athletes often have a <a href="https://www.health.harvard.edu/heart-health/is-a-low-heart-rate-worrisome">low resting heart rate</a>, around 40-50 beats per minute, and slower during sleep.</p> <p>Some are even lower – five time Tour de France winner Miguel Indurain famously had a resting heart rate of <a href="https://www.cyclingweekly.com/fitness/miguel-indurain-vs-your-body-34288">28 beats per minute</a>.</p> <p>Legendary US swimmer Michael Phelps is the <a href="https://olympics.com/en/news/michael-phelps-olympic-medals-record-how-many-gold-swimmer-world-record">most successful Olympian</a> of all time – he had a resting heart rate of <a href="https://www.reanfoundation.org/low-resting-heart-rate-and-lifespan/#:%7E:text=Studies%20on%20Athletes%20and%20Low%20Resting%20Heart%20Rate&text=It%20could%20also%20hint%20at,BPM%20throughout%20his%20professional%20career">less than 40 beats per minute</a>.</p> <p>Regular moderate-to-vigorous intensity aerobic exercise makes the <a href="https://www.medicalnewstoday.com/articles/athletes-heart-rate">heart stronger and more efficient</a>. A stronger heart pumps more blood per beat, which means it doesn’t need to beat as often.</p> <p>Exercise also <a href="https://pubmed.ncbi.nlm.nih.gov/12477376/">increases vagus nerve</a> activity to the heart and <a href="https://www.nature.com/articles/ncomms4775">slows down</a> the heart’s pacemaker cells. These both reduce heart rate.</p> <p><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6306777/">A large review</a> found endurance training and yoga were the best exercises to reduce resting heart rate. But training needs to be maintained to keep resting heart rate low.</p> <p>When elite athletes reduced their training volume by half during COVID lockdown, their <a href="https://www.mdpi.com/2071-1050/13/5/2970">resting heart rate increased</a>.</p> <h2>What does this mean for our health?</h2> <p>A slower resting heart rate is linked to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6306777/">longer life expectancy and reduced death from cardiovascular disease</a>. Indeed, <a href="https://bjsm.bmj.com/content/55/4/206">a study</a> of more than 8,000 Olympians from the United States found they lived longer than the general population.</p> <p>So it is healthy to do activities that increase your heart rate in the short-term, whether as an Olympian or Paralympian competing, or a fan with your heart racing watching a gold medal event.<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/235594/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/theresa-larkin-952095">Theresa Larkin</a>, Associate professor of Medical Sciences, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a> and <a href="https://theconversation.com/profiles/gregory-peoples-1556509">Gregory Peoples</a>, Senior Lecturer - Physiology, <a href="https://theconversation.com/institutions/university-of-wollongong-711">University of Wollongong</a></em></p> <p><em>Image credits: Shutterstock </em></p> <p><em>This article is republished from <a href="https://theconversation.com">The Conversation</a> under a Creative Commons license. Read the <a href="https://theconversation.com/from-maxing-out-to-slowing-down-how-much-do-heart-rates-vary-across-sports-235594">original article</a>.</em></p> </div>

Body

92-year-old grandma steals hearts in Paris

<p>Australian judo champion Aoife Coughlan stunned Olympic audiences with a tense showdown against German athlete Miriam Butkereit in Paris, but some audience members had their attention drawn elsewhere. </p> <p>The 28-year-old Aussie was holding her own against Butkereit, until sudden-death overtime saw Butkereit, 30, win at the last second in the women's 70kg judo round of 16.</p> <p>Despite the unbelievable scenes inside Grand Palais Éphémère in Champ de Mars in Paris, some spectators were quick to notice a special guest hovering behind the TV cameras, who has since drawn the world's attention. </p> <p>Coughlan's 92-year-old grandmother Pam Coughlan, from Ireland, scored a prime position mat-side to watch her granddaughter compete, with the judoka's cousin explaining just how his grandmother secured her prime, and unusual, spot on social media.</p> <blockquote class="twitter-tweet"> <p dir="ltr" lang="en">My 92 year old granny is at the Olympics today to watch her Australian grandchild in the Judo.</p> <p>She persuaded them to let her sit here. Never doubt the Dublin Granny. <a href="https://t.co/XevdsWxKnt">pic.twitter.com/XevdsWxKnt</a></p> <p>— Mark Coughlan (@Mark_Coughlan) <a href="https://twitter.com/Mark_Coughlan/status/1818561337212977605?ref_src=twsrc%5Etfw">July 31, 2024</a></p></blockquote> <p>"She persuaded them to let her sit here. Never doubt the Dublin Granny," Mark Coughlan wrote on X (formerly Twitter). </p> <p>Wearing sunglasses inside and a red, French-style beret to complete her look, Coughlan's grandmother Pam kept a watchful eye on her granddaughter, with Mark commentating from at home. </p> <p>"Judo is quicker than I knew, and harsh," Coughlan's cousin explained to his social media followers. "Round two 20 minutes after round one: Aoife lost on Judo's equivalent of extra time and penalties in the last minute."</p> <p>"Massive pride. What an achievement. Olympian and hugs from Granny afterwards."</p> <p>Pam Coughlan, Mark said, will "have to do the Paris look-around now" as she did eight years ago, when she flew aged 83 to spectate at Rio 2016.</p> <p>Mark's Twitter thread about his grandmother quickly went viral, with many applauding the older woman for her supportive nature. </p> <p>One fan wrote, "Dublin Granny…need you say more??" while another added, "All olympic grannies who can manage to attend in person should be given front row seats."</p> <p><em>Image credits: Nine </em></p>

Family & Pets

Dr Michael Mosley's wife shares heart-breaking tribute to her late husband

<p>Dr Michael Mosley's widow has shared a heart-breaking tribute to her late husband just weeks after his untimely death. </p> <p>Mosley first went missing while holidaying with his wife, Dr Clare Bailey, on the island of Symi on June 4th, and was tragically found dead five days later. </p> <p>Taking to Instagram on Saturday, Dr Bailey thanked the public for the “wonderfully supportive messages” and revealed that her family misses the father of four “so much.”</p> <p>“The outpouring of love from so many people has meant a huge amount to me and my family,” she wrote alongside a photo of her late husband.</p> <p>“I’m going to be quiet for a while. I’m sure you will understand. But I will be back here soon."</p> <p>Sharing her plans for the future, she added, “I very much want to continue with the work that gave Michael and myself so much joy and such a sense of purpose.”</p> <p>“Once more thank you so much for respecting my family’s privacy so kindly. Michael was an amazing man. Thank you for seeing that too. We miss him so much.” </p> <p>Dr Mosley was a popular TV talking head in the UK and in Australia, who regularly appeared on chat shows and presented documentaries about diet and exercise.</p> <p>Michael and Clare married in 1987 and share four adult children – sons, Dan, Alex and Jack, and daughter, Kate.</p> <p><em>Image credits: Instagram </em></p>

Caring

Major TV star's 7-year-old undergoes third open heart surgery

<p>Jimmy Kimmel's seven-year-old son has undergone his third, and hopefully final open heart surgery after being born with congenital heart disease. </p> <p>In 2017, Jimmy <a href="https://www.youtube.com/watch?v=MmWWoMcGmo0" target="_blank" rel="noopener">revealed</a> that Billy was only three days old when had to undergo his first open heart surgery, after doctors found “a hole in the wall of the left and right side of his heart” that was preventing enough oxygen from reaching his blood. </p> <p>Billy was only seven months old when he had to undergo his second open heart surgery, and over the weekend he had to undergo his third major surgery at the Children's Hospital Los Angeles. </p> <p>A few days later, the TV host took to Instagram to share an update following his son's successful surgery. </p> <p>"We went into this experience with a lot of optimism and nearly as much fear and came out with a new valve inside a happy, healthy kid," Kimmel wrote, alongside a picture of his youngest son smiling in a hospital bed. </p> <p>He then thanked all the surgeons, doctors and other medical staff who "came through for us with immeasurable kindness and expertise." </p> <p>"Walking around this hospital, meeting parents at their most vulnerable, children in pain and the miracle workers who do everything in their considerable power to save them is a humbling experience," Kimmel continued.</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/p/C7fE-p4S7YN/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/C7fE-p4S7YN/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Jimmy Kimmel (@jimmykimmel)</a></p> </div> </blockquote> <p>He then highlighted the hospital's dedication to providing help to families "regardless of their ability to pay". </p> <p>Jimmy then extended his thanks to his family and friends and the "loving strangers who took time to pray for and send positive energy to our baby".</p> <p>He gave a special shout out to his wife Molly – for "being stronger than is reasonable for any Mum to be". The pair also share daughter Jane, nine. </p> <p>The late night TV host then praised his son for being "the toughest (and funniest) 7 year-old we know."</p> <p>"There are so many parents and children who aren't fortunate enough to go home after five days," he added and encouraged his followers to send their thoughts and prayers to these families. </p> <p><em>Image: Instagram/ X</em></p> <p> </p>

Caring

Step up: take the stairs to help your heart

<p>Climbing stairs is associated with a longer life, according to research presented this week at an annual meeting of Europe’s leading cardiologists.</p> <div class="copy"> <p>The systematic review of 9 previous studies covering nearly 500,000 participants investigated whether climbing stairs as a form of physical activity could play a role in reducing the risks of <a href="https://cosmosmagazine.com/science/biology/how-organ-on-a-chip-technology-is-revolutionising-the-way-we-study-cardiovascular-disease/">cardiovascular diseases</a> and premature death.</p> <p>Study author Dr Sophie Paddock, of the Norfolk and Norwich University Hospital Foundation Trust, UK, says: “if you have the choice of taking the stairs or the lift, go for the stairs as it will help your heart”.</p> <p>“Even brief bursts of physical activity have beneficial health impacts, and short bouts of stair climbing should be an achievable target to integrate into daily routines.”</p> <p>Cardiovascular diseases (CVDs) are a group of disorders of the hearth and blood vessels. They are the leading cause of non-communicable disease death globally, with 17.9m people estimated to have died of one in 2019 alone. Physical inactivity is one of the most important behavioural risk factors for developing CVDs. More than 1 in 4 adults do not meet the global <a href="https://www.who.int/news-room/fact-sheets/detail/physical-activity" target="_blank" rel="noreferrer noopener">recommended levels</a> of physical activity.</p> <p>The <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3049418/" target="_blank" rel="noreferrer noopener">meta-analysis</a> on the best available science covered 480,479 individuals aged 35-84 years old. 53% of participants were women.</p> <p>Stair climbing was significantly associated with a 24% reduced risk of dying from any cause and a 39% lower likelihood of dying from cardiovascular disease, compared to not climbing stairs.</p> <p>It was also linked to a reduced <a href="https://cosmosmagazine.com/health/covid-19-impacts-on-cardiac-health/">risk of CVDs</a> including heart attack, heart failure and stroke.</p> <p>“Based on these results, we would encourage people to incorporate stair climbing into their day-to-day lives,” says Paddock.</p> <p>“Our study suggested that the more stairs climbed, the greater the benefits – but this needs to be confirmed. So, whether at work, home, or elsewhere, take the stairs.”</p> <p>The research was presented to <a href="https://www.escardio.org/Congresses-Events/Preventive-Cardiology" target="_blank" rel="noreferrer noopener">ESC Preventive Cardiology 2024</a>, an annual congress of the European Association of Preventive Cardiology in Greece this week.</p> <p><em>Image credits: Shutterstock </em></p> <div> <p align="center"> </p> </div> <p><em><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=302751&title=Step+up%3A+take+the+stairs+to+help+your+heart" width="1" height="1" loading="lazy" aria-label="Syndication Tracker" data-spai-target="src" data-spai-orig="" data-spai-exclude="nocdn" /></em></div> <div id="contributors"> <p><em><a href="https://cosmosmagazine.com/health/body-and-mind/step-up-take-the-stairs-to-help-your-heart/">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/imma-perfetto/">Imma Perfetto</a>. </em></p> </div>

Body

Menopause can bring increased cholesterol levels and other heart risks. Here’s why and what to do about it

<p><em><a href="https://theconversation.com/profiles/treasure-mcguire-135225">Treasure McGuire</a>, <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</a></em></p> <p>Menopause is a natural biological process that marks the end of a woman’s reproductive years, typically between 45 and 55. As women approach or experience menopause, common “change of life” <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9244939/">concerns</a> include hot flushes, sweats and mood swings, brain fog and fatigue.</p> <p>But many women may not be aware of the <a href="https://pubmed.ncbi.nlm.nih.gov/32705886/">long-term effects</a> of menopause on the heart and blood vessels that make up the cardiovascular system. Heart disease accounts for <a href="http://world-heart-federation.org/what-we-do/women-cvd/">35% of deaths</a> in women each year – more than all cancers combined.</p> <p>What should women – and their doctors – know about these risks?</p> <h2>Hormones protect hearts – until they don’t</h2> <p>As early as 1976, the <a href="https://pubmed.ncbi.nlm.nih.gov/970770/">Framingham Heart Study</a> reported more than twice the rates of cardiovascular events in postmenopausal than pre-menopausal women of the same age. Early menopause (younger than age 40) also <a href="https://pubmed.ncbi.nlm.nih.gov/25331207/">increases heart risk</a>.</p> <p>Before menopause, women tend to be protected by their circulating hormones: oestrogen, to a lesser extent progesterone and low levels of testosterone.</p> <p>These sex hormones help to relax and dilate blood vessels, reduce inflammation and <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10503403/">improve lipid (cholesterol) levels</a>. From the mid-40s, a decline in these hormone levels can <a href="https://pubmed.ncbi.nlm.nih.gov/10362825/">contribute to unfavourable changes</a> in cholesterol levels, blood pressure and weight gain – all risk factors for heart disease.</p> <h2>4 ways hormone changes impact heart risk</h2> <p><strong>1. Dyslipidaemia</strong>– Menopause often involves <a href="https://pubmed.ncbi.nlm.nih.gov/38002671/">atherogenic changes</a> – an unhealthy imbalance of lipids in the blood, with higher levels of total cholesterol, triglycerides, and low-density lipoprotein (LDL-C), dubbed the “bad” cholesterol. There are also reduced levels of high-density lipoprotein (HDL-C) – the “good” cholesterol that helps remove LDL-C from blood. These changes are a <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10503403/">major risk factor for heart attack or stroke</a>.</p> <p><strong>2. Hypertension</strong> – Declines in oestrogen and progesterone levels during menopause contribute to narrowing of the large blood vessels on the heart’s surface, arterial stiffness and <a href="https://pubmed.ncbi.nlm.nih.gov/35722103/">raise blood pressure</a>.</p> <p><strong>3. Weight gain</strong> – Females are born with one to two million eggs, which develop in follicles. By the time they <a href="https://www.thewomens.org.au/health-information/fertility-information/getting-pregnant/ovulation-and-conception">stop ovulating</a> in midlife, fewer than 1,000 remain. This depletion progressively changes fat distribution and storage, from the hips to the waist and abdomen. Increased waist circumference (greater than 80–88 cm) has been <a href="https://pubmed.ncbi.nlm.nih.gov/18359190/">reported to contribute to heart risk</a> – though it is <a href="https://theconversation.com/good-news-midlife-health-is-about-more-than-a-waist-measurement-heres-why-226019">not the only factor to consider</a>.</p> <p><strong>4. Comorbidities</strong> – Changes in body composition, sex hormone decline, increased food consumption, weight gain and sedentary lifestyles impair the body’s ability to effectively use insulin. This <a href="https://pubmed.ncbi.nlm.nih.gov/11133069/">increases the risk</a> of developing metabolic syndromes such as type 2 diabetes.</p> <p>While risk factors apply to both genders, hypertension, smoking, obesity and type 2 diabetes confer a greater relative risk for heart disease in women.</p> <h2>So, what can women do?</h2> <p>Every woman has a different level of baseline cardiovascular and metabolic risk pre-menopause. This is based on their genetics and family history, diet, and lifestyle. But all women can <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8351755/">reduce their post-menopause heart risk with</a>:</p> <ul> <li>regular moderate intensity exercise such as brisk walking, pushing a lawn mower, riding a bike or water aerobics for 30 minutes, four or five times every week</li> <li>a healthy heart diet with smaller portion sizes (try using a smaller plate or bowl) and more low-calorie, nutrient-rich foods such as vegetables, fruit and whole grains</li> <li>plant sterols (unrefined vegetable oil spreads, nuts, seeds and grains) each day. A review of 14 clinical trials found plant sterols, at doses of at least 2 grams a day, produced an average reduction in serum LDL-C (bad cholesterol) of about 9–14%. This could reduce the risk of heart disease by <a href="https://pubmed.ncbi.nlm.nih.gov/10731187/">25% in two years</a></li> <li>less unhealthy (saturated or trans) fats and more low-fat protein sources (lean meat, poultry, fish – especially oily fish high in omega-3 fatty acids), legumes and low-fat dairy</li> <li>less high-calorie, high-sodium foods such as processed or fast foods</li> <li>a reduction or cessation of smoking (nicotine or cannabis) and alcohol</li> <li>weight-gain management or prevention.</li> </ul> <h2>What about hormone therapy medications?</h2> <p>Hormone therapy remains the most effective means of <a href="https://pubmed.ncbi.nlm.nih.gov/15495039/">managing hot flushes and night sweats</a> and is beneficial for <a href="https://pubmed.ncbi.nlm.nih.gov/18418063/">slowing the loss of bone mineral density</a>.</p> <p>The decision to recommend oestrogen alone or a combination of oestrogen plus progesterone hormone therapy depends on whether a woman has had a hysterectomy or not. The choice also depends on whether the hormone therapy benefit outweighs the woman’s disease risks. Where symptoms are bothersome, hormone therapy has <a href="https://pubmed.ncbi.nlm.nih.gov/33841322/">favourable or neutral effects on coronary heart disease risk</a> and medication risks are low for healthy women younger than 60 or within ten years of menopause.</p> <p>Depending on the level of stroke or heart risk and the response to lifestyle strategies, some women may also require medication management to <a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8351755/">control high blood pressure or elevated cholesterol levels</a>. Up until the early 2000s, women were underrepresented in most outcome trials with lipid-lowering medicines.</p> <p>The <a href="https://pubmed.ncbi.nlm.nih.gov/25579834/">Cholesterol Treatment Trialists’ Collaboration</a> analysed 27 clinical trials of statins (medications commonly prescribed to lower cholesterol) with a total of 174,000 participants, of whom 27% were women. Statins were about as effective in women and men who had similar risk of heart disease in preventing events such as stroke and heart attack.</p> <p>Every woman approaching menopause should ask their GP for a 20-minute <a href="https://www.health.gov.au/news/heart-health">Heart Health Check</a> to help better understand their risk of a heart attack or stroke and get tailored strategies to reduce it.</p> <p><em><a href="https://theconversation.com/profiles/treasure-mcguire-135225">Treasure McGuire</a>, Assistant Director of Pharmacy, Mater Health SEQ in conjoint appointment as Associate Professor of Pharmacology, Bond University and as Associate Professor (Clinical), <a href="https://theconversation.com/institutions/the-university-of-queensland-805">The University of Queensland</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/menopause-can-bring-increased-cholesterol-levels-and-other-heart-risks-heres-why-and-what-to-do-about-it-228010">original article</a>.</em></p>

Body

What are heart rate zones, and how can you incorporate them into your exercise routine?

<p><em><a href="https://theconversation.com/profiles/hunter-bennett-1053061">Hunter Bennett</a>, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</a></em></p> <p>If you spend a lot of time exploring fitness content online, you might have come across the concept of heart rate zones. Heart rate zone training has become more popular in recent years partly because of the boom in wearable technology which, among other functions, allows people to easily track their heart rates.</p> <p><a href="https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6537749/">Heart rate zones</a> reflect different levels of intensity during aerobic exercise. They’re most often based on a percentage of your maximum heart rate, which is the highest number of beats your heart can achieve per minute.</p> <p>But what are the different heart rate zones, and how can you use these zones to optimise your workout?</p> <h2>The three-zone model</h2> <p>While there are several models used to describe heart rate zones, the most common model in the scientific literature is the <a href="https://journals.humankinetics.com/view/journals/ijspp/9/1/article-p100.xml">three-zone model</a>, where the zones may be categorised as follows:</p> <ul> <li> <p>zone 1: 55%–82% of maximum heart rate</p> </li> <li> <p>zone 2: 82%–87% of maximum heart rate</p> </li> <li> <p>zone 3: 87%–97% of maximum heart rate.</p> </li> </ul> <p>If you’re not sure what your maximum heart rate is, it can be calculated using <a href="https://www.jacc.org/doi/full/10.1016/S0735-1097%2800%2901054-8">this equation</a>: 208 – (0.7 × age in years). For example, I’m 32 years old. 208 – (0.7 x 32) = 185.6, so my predicted maximum heart rate is around 186 beats per minute.</p> <p>There are also other models used to describe heart rate zones, such as the <a href="https://journals.humankinetics.com/view/journals/ijspp/14/8/article-p1151.xml">five-zone model</a> (as its name implies, this one has five distinct zones). These <a href="https://journals.humankinetics.com/view/journals/ijspp/9/1/article-p100.xml">models</a> largely describe the same thing and can mostly be used interchangeably.</p> <h2>What do the different zones involve?</h2> <p>The three zones are based around a person’s <a href="https://link.springer.com/article/10.2165/00007256-200939060-00003">lactate threshold</a>, which describes the point at which exercise intensity moves from being predominantly aerobic, to predominantly anaerobic.</p> <p>Aerobic exercise <a href="https://www.healthline.com/health/fitness-exercise/difference-between-aerobic-and-anaerobic">uses oxygen</a> to help our muscles keep going, ensuring we can continue for a long time without fatiguing. Anaerobic exercise, however, uses stored energy to fuel exercise. Anaerobic exercise also accrues metabolic byproducts (such as lactate) that increase fatigue, meaning we can only produce energy anaerobically for a short time.</p> <p>On average your lactate threshold tends to sit around <a href="https://www.tandfonline.com/doi/full/10.2147/OAJSM.S141657">85% of your maximum heart rate</a>, although this varies from person to person, and can be <a href="https://journals.physiology.org/doi/full/10.1152/japplphysiol.00043.2013">higher in athletes</a>.</p> <p>In the three-zone model, each zone loosely describes <a href="https://www.frontiersin.org/journals/physiology/articles/10.3389/fphys.2015.00295/full">one of three types of training</a>.</p> <p><strong>Zone 1</strong> represents high-volume, low-intensity exercise, usually performed for long periods and at an easy pace, well below lactate threshold. Examples include jogging or cycling at a gentle pace.</p> <p><strong>Zone 2</strong> is threshold training, also known as tempo training, a moderate intensity training method performed for moderate durations, at (or around) lactate threshold. This could be running, rowing or cycling at a speed where it’s difficult to speak full sentences.</p> <p><strong>Zone 3</strong> mostly describes methods of high-intensity interval training, which are performed for shorter durations and at intensities above lactate threshold. For example, any circuit style workout that has you exercising hard for 30 seconds then resting for 30 seconds would be zone 3.</p> <h2>Striking a balance</h2> <p>To maximise endurance performance, you need to strike a balance between doing enough training to elicit positive changes, while avoiding over-training, injury and burnout.</p> <p>While zone 3 is thought to produce the largest improvements in <a href="https://www.sciencedirect.com/science/article/pii/S1440244018309198">maximal oxygen uptake</a> – one of the best predictors of endurance performance and overall health – it’s also the most tiring. This means you can only perform so much of it before it becomes too much.</p> <p>Training in different heart rate zones improves <a href="https://citeseerx.ist.psu.edu/document?repid=rep1&type=pdf&doi=38c07018c0636422d9d5a77316216efb3c10164f">slightly different physiological qualities</a>, and so by spending time in each zone, you ensure a <a href="https://link.springer.com/article/10.1007/bf00426304">variety of benefits</a> for performance and health.</p> <h2>So how much time should you spend in each zone?</h2> <p>Most <a href="https://www.frontiersin.org/articles/10.3389/fspor.2023.1258585/full">elite endurance athletes</a>, including runners, rowers, and even cross-country skiers, tend to spend most of their training (around 80%) in zone 1, with the rest split between zones 2 and 3.</p> <p>Because elite endurance athletes train a lot, most of it needs to be in zone 1, otherwise they risk injury and burnout. For example, some runners accumulate <a href="https://journals.humankinetics.com/view/journals/ijsnem/22/5/article-p392.xml?content=pdf">more than 250 kilometres per week</a>, which would be impossible to recover from if it was all performed in zone 2 or 3.</p> <p>Of course, most people are not professional athletes. The <a href="https://www.who.int/news-room/fact-sheets/detail/physical-activity">World Health Organization</a> recommends adults aim for 150–300 minutes of moderate intensity exercise per week, or 75–150 minutes of vigorous exercise per week.</p> <p>If you look at this in the context of heart rate zones, you could consider zone 1 training as moderate intensity, and zones 2 and 3 as vigorous. Then, you can use heart rate zones to make sure you’re exercising to meet these guidelines.</p> <h2>What if I don’t have a heart rate monitor?</h2> <p>If you don’t have access to a heart rate tracker, that doesn’t mean you can’t use heart rate zones to guide your training.</p> <p>The three heart rate zones discussed in this article can also be prescribed based on feel using a simple <a href="https://onlinelibrary.wiley.com/doi/10.1111/j.1600-0838.2004.00418.x">10-point scale</a>, where 0 indicates no effort, and 10 indicates the maximum amount of effort you can produce.</p> <p>With this system, zone 1 aligns with a 4 or less out of 10, zone 2 with 4.5 to 6.5 out of 10, and zone 3 as a 7 or higher out of 10.</p> <p>Heart rate zones are not a perfect measure of exercise intensity, but can be a useful tool. And if you don’t want to worry about heart rate zones at all, that’s also fine. The most important thing is to simply get moving.<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/228520/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/hunter-bennett-1053061">Hunter Bennett</a>, Lecturer in Exercise Science, <a href="https://theconversation.com/institutions/university-of-south-australia-1180">University of South Australia</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/what-are-heart-rate-zones-and-how-can-you-incorporate-them-into-your-exercise-routine-228520">original article</a>.</em></p>

Body

"Our Jimmy made it": Barnes' happy message from the ICU

<p>Iconic Australian rock singer Jimmy Barnes has emerged victorious from a challenging battle with a bacterial infection that led him to undergo emergency open heart surgery. The Cold Chisel frontman, at 67 years young, faced a sudden health setback but is now on the road to recovery in the ICU.</p> <p>The journey began at the end of last month when Barnes was <a href="https://www.oversixty.co.nz/health/caring/jimmy-barnes-hospitalised-with-major-health-issue" target="_blank" rel="noopener">hospitalised with pneumonia</a>. His wife, Jane, has now provided a heartening update on Instagram, sharing a photo from the hospital and revealing that the surgery was successful. Gratitude poured out to the dedicated medical team who played a crucial role in his recovery.</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-captioned="" data-instgrm-permalink="https://www.instagram.com/p/C0yULk4hvT6/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/C0yULk4hvT6/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Jimmy Barnes (@jimmybarnesofficial)</a></p> </div> </blockquote> <p>"I’m happy to let you know that our Jimmy has made it through his surgery and is now recovering in the ICU," Jane wrote. "We are so grateful for the incredible medical team looking after him. Thank you for all the love and support."</p> <p>Earlier, Barnes bravely shared the news that the bacterial infection had <a href="https://www.oversixty.co.nz/health/caring/bad-news-jimmy-barnes-rushed-into-emergency-open-heart-surgery" target="_blank" rel="noopener">spread to his heart</a>. Despite this unexpected challenge, he faced the situation with courage and underwent open heart surgery to clear out the infection and replace a valve. The infection had affected a valve replaced years ago due to a congenital defect.</p> <p>Barnes, who was set to headline the Rock the Boat 2023 cruise festival before falling ill, reflected on his recent peak fitness just weeks prior. The sudden turn of events required adjustments to upcoming shows, causing some frustration for the singer. However, his son, David Campbell, reassured fans on the <em>Today</em> show, emphasising his father's frustration for the fans and passion for supporting the music industry.</p> <p>"He is in wonderful hands," Campbell said, expressing confidence in the medical team. Barnes' son also encouraged fans to reach out to him on social media, assuring everyone that the rock legend would make a great recovery.</p> <p>As the music community rallies around Barnes, sending waves of positivity and healing energy, we look forward to a speedy recovery and many more years of rock and roll from the indomitable Jimmy Barnes!</p> <p><em>Images: Instagram</em></p>

Caring

"Bad news": Jimmy Barnes rushed into emergency open heart surgery

<p>Jimmy Barnes has shared a major health update with his fans, just hours before heading into an emergency surgery. </p> <p>The iconic musician took to Instagram to share that he is set to undergo open heart surgery, after a dangerous infection was unable to be controlled. </p> <p>The 67-year-old, who has only recently recovered from pneumonia, announced the news from his hospital bed on Wednesday. </p> <p>"Unfortunately I got some bad news yesterday….despite everyone's best efforts the bacterial infection I've been battling over the last fortnight has apparently now spread to my heart," Barnes wrote.</p> <p>"It's infected an otherwise healthy valve that was replaced some years ago due to a congenital defect, so l'll be getting open heart surgery over the next few hours to clear out this infection and put in a clean valve."</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/p/C0xKOuBhSpS/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/C0xKOuBhSpS/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Jimmy Barnes (@jimmybarnesofficial)</a></p> </div> </blockquote> <p>After announcing the news himself on social media, Barnes' son David Campbell spoke about his father's condition on <em><a href="https://9now.nine.com.au/today/jimmy-barnes-undergoes-open-heart-surgery-after-bacterial-infection-spreads/f4c56d1e-cd25-4a2d-8b24-11b592a4aae8" target="_blank" rel="noopener">Today Extra</a></em>, saying his dad was more frustrated at letting his fans down than anything else.</p> <p>Just before being struck down with the infection, Barnes was due to headline the Rock the Boat 2023 cruise festival.</p> <p>"I am here to allay everyone's fears, he is in wonderful hands," Campbell said.</p> <p>"He loves to work and he is frustrated for the fans who have been booking tickets and coming to his shows, he is passionate about getting crews back up and running in Australia and performing with his band, but is grateful for the nurses and doctors and if he hadn't got bacterial pneumonia, he wouldn't have had this picked up."</p> <p>Campbell said the family were confident in the medical staff looking after his dad and said "it was a blessing" that the infection was picked up when it was. </p> <p>"He is in great hands and he will make a great recovery, so reach out to him on social media because all the love in the world will be good for him," he said.</p> <p><em>Image credits: Getty Images</em></p>

Caring

Supernatural star has six heart attacks and dies four times

<p><em>Supernatural </em>star Mark Sheppard recently shared a harrowing experience that left fans and well-wishers in disbelief.</p> <p>The 59-year-old actor disclosed that he had faced six massive heart attacks over the weekend, defying the odds by surviving – despite dying and being revived four times during the ordeal.</p> <p>Sheppard recounted the dramatic incident in an Instagram post from his hospital bed, detailing how he collapsed in his kitchen at home. Urgently rushed to the hospital, medical professionals discovered a "100 per cent blockage" in his left anterior descending artery (LAD), a vital blood vessel supplying the front of the left side of the heart, according to John Hopkins Medicine.</p> <p>The actor expressed profound gratitude to his wife, the Los Angeles Fire Department at Mulholland, and the dedicated staff at Providence California St Joseph's, saying that without their prompt intervention, his chances of survival would have been "virtually nil".</p> <p>Despite the severity of the situation, Sheppard's resilience shone through. In his Instagram post, he shared the astonishing news of being resuscitated four times after experiencing the six massive cardiac events. The actor, best known for his role as the demon and King of Hell Crowley in <em>Supernatural</em>, acknowledged the miracle of his survival and thanked the medical professionals who played a crucial role in his recovery.</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-captioned="" data-instgrm-permalink="https://www.instagram.com/p/C0XZqCtSYeO/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/C0XZqCtSYeO/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Mark Sheppard (@realmarksheppard)</a></p> </div> </blockquote> <p>In the midst of his health crisis, Sheppard took a moment to express his gratitude for the support and care he received. His fans, too, flooded the comment section with well-wishes and messages of relief. One fan, acknowledging the actor's miraculous survival, commented, "All the best to you and your family!" Another, an experienced emergency room nurse, exclaimed, "As a 20-year ER nurse, you are a miracle!"</p> <p>Sheppard wrapped up his post on a positive note, announcing that he is on the mend, soon to be heading home, and "feeling great".</p> <p><em>Images: Instagram</em></p>

Caring

"This hurts the heart": Days of our Lives star's shock death at just 50

<p><em>General Hospital</em> and <em>Days of Our Lives</em> star Tyler Christopher has passed away at the age of 50 after a "cardiac event". The shocking news was confirmed by his <em>General Hospital </em>co-star, Maurice Benard, who expressed his deep sorrow and heartfelt tribute to his friend on social media.</p> <p>In an emotional Instagram post, Benard shared, "It is with great sadness that we share the news of the passing of Christopher. Tyler passed away this morning following a cardiac event in his San Diego apartment."</p> <p>He went on to describe Tyler as a "truly talented individual" who illuminated the screen with every performance, bringing joy to his devoted fans. He was not only a gifted actor but also a kind and compassionate soul who touched the lives of those who knew him.</p> <p>Benard also highlighted Christopher's advocacy for mental health and substance use treatment. Tyler was open about his personal struggles with bipolar depression and alcohol, using his platform to raise awareness and provide support to others facing similar challenges. His candour in addressing these issues endeared him to many and further solidified his legacy as an actor and an advocate.</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-captioned="" data-instgrm-permalink="https://www.instagram.com/p/CzFJiUXPyRK/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/CzFJiUXPyRK/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Maurice Benard (@mauricebenard)</a></p> </div> </blockquote> <p>The news of Christopher's passing resonated deeply with his fans and colleagues. Messages of love and support flooded social media, with one fan expressing, "This hurts the heart. I loved him on <em>General Hospital</em>. Sending love and prayers to his family and friends."</p> <p>The outpouring of grief from the public underscores the significant impact he had on the entertainment industry and his audience.</p> <p>Christopher is of course best known for his iconic roles as Nikolas Cassadine on <em>General Hospital</em> and Stefan DiMera on <em>Days of Our Lives</em>. His captivating performances and versatility as an actor made him a beloved figure in the world of daytime television.</p> <p>Tyler leaves behind two children from his previous marriage to reporter Brienne Pedigo. He was previously married to actress Eva Longoria from 2002 to 2004. In recent years, he appeared in the TV movie <em>Ice Storm</em> and featured in <em>Thor: God of Thunder</em> in 2022, demonstrating his enduring talent and commitment to his craft.</p> <p>The actor received recognition for his exceptional work, earning five Daytime Emmy nominations during his tenure on <em>General Hospital</em>. His dedication to his roles and his ability to connect with his characters and the audience was evident in his numerous accolades.</p> <p>Despite his professional success, Christopher faced personal challenges. In 2019, he was placed under the guardianship of his sister due to an accident and internal bleeding during an episode of "alcohol withdrawal". This period of his life was marked by legal and personal struggles. In May, he was arrested for "public intoxication". He also alleged that his sister had "used his finances" while serving as his guardian, a claim she vehemently denied. The guardianship ended in 2021, marking a challenging chapter in his life.</p> <p>Christopher will be remembered not only for his remarkable contributions to the entertainment industry but also for his courage in addressing his personal battles and advocating for those who needed a voice.</p> <p><em>Image: Instagram</em></p>

Caring

Our planet is burning in unexpected ways - here’s how we can protect people and nature

<p><em><a href="https://theconversation.com/profiles/luke-kelly-159658">Luke Kelly</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/david-bowman-4397">David Bowman</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>; <a href="https://theconversation.com/profiles/ella-plumanns-pouton-1470045">Ella Plumanns Pouton</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/grant-williamson-109967">Grant Williamson</a>, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/michael-shawn-fletcher-99786">Michael-Shawn Fletcher</a>, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a></em></p> <p>People have been using fire for millennia. It is a vital part of many ecosystems and cultures. Yet human activities in the current era, sometimes called the “<a href="https://theconversation.com/did-the-anthropocene-start-in-1950-or-much-earlier-heres-why-debate-over-our-world-changing-impact-matters-209869">Anthropocene</a>”, are reshaping patterns of fire across the planet.</p> <p><a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">In our new research</a>, published in the Annual Review of Environment and Resources, we used satellite data to create global maps of where and how fires are burning. We calculated about 3.98 million square kilometres of Earth’s land surface burns each year. We also examined research spanning archaeology, climatology, ecology, Indigenous knowledge and paleoecology, to better understand the causes and consequences of fires.</p> <p>Our international team found strong evidence fires are burning in unexpected places, at unusual times and in rarely observed ways. These changes in fire patterns are threatening human lives and modifying ecosystems.</p> <p>But the future does not have to be bleak. There are many opportunities to apply knowledge and practice of fire to benefit people and nature.</p> <h2>Here’s how fire patterns are changing</h2> <p>Exploring multiple approaches and scales enables a deeper understanding of where, when and how fires burn.</p> <p>Satellite data provide evidence of changes in fire patterns at a global scale. <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2020RG000726">Annual fire season length</a> increased by 14 days from 1979 to 2020 and <a href="https://www.nature.com/articles/s41586-021-04325-1">night fires</a>, which indicate fires that cannot be quickly controlled, increased in intensity by 7.2% from 2003 to 2020.</p> <p>Other changes are apparent only when we look at data from particular regions. An increase in fire size and the frequency of large fires has recently been observed in <a href="https://www.pnas.org/doi/abs/10.1073/pnas.2103135118">forests and woodlands of the western United States</a>. Meanwhile fire-dependent grasslands and savannahs across <a href="https://onlinelibrary.wiley.com/doi/full/10.1111/gcb.14711">Africa</a> and <a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019GL082327">Brazil</a> have experienced reductions in fire frequency.</p> <p>It’s also important to consider the timescale and type of fire when interpreting changes. In Australia, <a href="https://www.nature.com/articles/s41467-021-27225-4">satellite records show</a> the frequency of very large forest fires has increased over the past four decades. At longer time scales, <a href="https://link.springer.com/article/10.1007/s13280-020-01339-3">charcoal and pollen records</a> indicate the frequency of low-intensity fires <a href="https://esajournals.onlinelibrary.wiley.com/doi/10.1002/fee.2395">decreased in parts of southeastern Australia</a> following British colonisation in 1788.</p> <h2>Changes in fire affect air, land and water</h2> <p>Many animals and plants have evolved strategies that enable them to thrive under particular fire patterns. This means changes to fire characteristics can <a href="https://www.science.org/doi/10.1126/science.abb0355">harm populations and ecosystems</a>.</p> <p><a href="https://conbio.onlinelibrary.wiley.com/doi/full/10.1111/conl.12905">Large and intense fires</a> are reducing the available forest habitat preferred by the greater glider. But a <a href="https://theconversation.com/research-reveals-fire-is-pushing-88-of-australias-threatened-land-mammals-closer-to-extinction-185965">lack of fire can be problematic too</a>. Threatened species of native rodents can benefit from food resources and habitats that flourish shortly after fire.</p> <p>There is evidence that emissions from recent fires are already modifying the atmosphere. The historically exceptional 2019–20 Australian wildfires produced <a href="https://www.science.org/doi/10.1126/science.abe1415#:%7E:text=Intense%2C%20widespread%20bushfires%20in%20Australia,from%20a%20moderate%20volcanic%20eruption.">record-breaking levels of aerosols</a> over the Southern Hemisphere, as well as substantial carbon emissions.</p> <p>The <a href="https://www.nature.com/articles/s41893-020-00610-5">wildfire smoke-related health costs</a> of the 2019–20 wildfires in Australia included an estimated 429 smoke-related premature deaths as well as 3,230 hospital admissions for cardiovascular and respiratory disorders.</p> <p>Changes in fire patterns are modifying water cycles, too. In the western United States, <a href="https://www.pnas.org/doi/10.1073/pnas.2009717118">fires are reaching higher elevations</a> and having strong impacts on <a href="https://www.pnas.org/doi/10.1073/pnas.2200333119">snow</a> and water availability.</p> <p>New studies are revealing how the air, land and water that support life on Earth are connected by fires. Smoke plumes from the 2019–20 Australian wildfires transported nutrients to the Southern Ocean, resulting in <a href="https://www.nature.com/articles/s41586-021-03805-8">widespread phytoplankton blooms</a>.</p> <h2>Humans are responsible for the changes</h2> <p>Human drivers such as climate change, land use, fire use and suppression, and transportation and extinction of species <a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">are causing shifts in fire patterns</a>.</p> <p>Increasing global temperatures and more frequent heatwaves and droughts increase the likelihood of fire by promoting hot, dry and windy conditions. A pattern of extreme fire weather outside of natural climate variation is already emerging in <a href="https://onlinelibrary.wiley.com/doi/10.1111/gcb.15388">North America</a>, <a href="https://link.springer.com/article/10.1007/s10584-014-1183-3">southern Europe</a> and <a href="https://iopscience.iop.org/article/10.1088/1748-9326/ac1e3a/meta">the Amazon basin</a>.</p> <p>Humans modify fire regimes by changing land use for agricultural, forestry and urban purposes. Until recent decades, large fires in tropical forests were uncommon. But <a href="https://www.nature.com/articles/s41586-021-03876-7">deforestation fires</a> used to clear primary forest for agriculture often promotes more frequent and intense uncontrolled fires.</p> <p>Humans have transported plants and animals across the globe, resulting in novel mixes of species that modify fuels and fire regimes. In many parts of the world, <a href="https://www.pnas.org/doi/abs/10.1073/pnas.1908253116">invasive grasses</a> have increased flammability and fire activity.</p> <p>Social and economic changes propel these drivers. Colonisation by Europeans and the displacement of Indigenous peoples and their skilful use of fire has been linked with fire changes in <a href="https://esajournals.onlinelibrary.wiley.com/doi/10.1002/fee.2395">Australia</a>, <a href="https://www.pnas.org/doi/10.1073/pnas.2116264119">North America</a> and <a href="https://royalsocietypublishing.org/doi/10.1098/rstb.2015.0174">South America</a>.</p> <h2>Using knowledge and practice of fire to achieve sustainability goals</h2> <p><a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">The pace and scale of these changes</a> represent challenges to humanity, but knowledge and practice of fire can help to achieve sustainability goals.</p> <p>This includes:</p> <ul> <li><a href="https://royalsocietypublishing.org/doi/10.1098/rstb.2015.0174">good health and wellbeing</a>, by supporting community-owned solutions and fire practices that increase social cohesion and health</li> <li><a href="https://www.sciencedirect.com/science/article/pii/S0301479718314658">sustainable cities and communities</a>, by designing green firebreaks and mixed-use areas with low fuels, strategically located in the landscape</li> <li><a href="https://www.science.org/doi/10.1126/science.aam7672">life on land</a>, by tailoring use of fire to promote and restore species and ecosystems</li> <li><a href="https://www.nature.com/articles/s41561-021-00867-1">climate action</a>, by applying low-intensity fire to promote the stability of soil organic matter and increase carbon storage</li> <li><a href="https://www.mdpi.com/1660-4601/18/8/3921">reduced inequalities</a>, by allocating resources before, during, and after wildfires to at-risk communities and residents.</li> </ul> <p>As the world changes, society as a whole needs to keep learning about the interplay between people and fire.</p> <p>A deep understanding of fire is essential for achieving a sustainable future – in other words, <a href="https://www.annualreviews.org/doi/abs/10.1146/annurev-environ-120220-055357">a better Anthropocene</a>.<img style="border: none !important; box-shadow: none !important; margin: 0 !important; max-height: 1px !important; max-width: 1px !important; min-height: 1px !important; min-width: 1px !important; opacity: 0 !important; outline: none !important; padding: 0 !important;" src="https://counter.theconversation.com/content/213215/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><a href="https://theconversation.com/profiles/luke-kelly-159658"><em>Luke Kelly</em></a><em>, Associate Professor in Quantitative Ecology, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/david-bowman-4397">David Bowman</a>, Professor of Pyrogeography and Fire Science, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>; <a href="https://theconversation.com/profiles/ella-plumanns-pouton-1470045">Ella Plumanns Pouton</a>, PhD candidate, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</a>; <a href="https://theconversation.com/profiles/grant-williamson-109967">Grant Williamson</a>, Research Fellow in Environmental Science, <a href="https://theconversation.com/institutions/university-of-tasmania-888">University of Tasmania</a>, and <a href="https://theconversation.com/profiles/michael-shawn-fletcher-99786">Michael-Shawn Fletcher</a>, Professor in Biogeography, <a href="https://theconversation.com/institutions/the-university-of-melbourne-722">The University of Melbourne</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/our-planet-is-burning-in-unexpected-ways-heres-how-we-can-protect-people-and-nature-213215">original article</a>.</em></p>

Travel Trouble

If anxiety is in my brain, why is my heart pounding? A psychiatrist explains the neuroscience and physiology of fear

<p><em><a href="https://theconversation.com/profiles/arash-javanbakht-416594">Arash Javanbakht</a>, <a href="https://theconversation.com/institutions/wayne-state-university-989">Wayne State University</a></em></p> <p>Heart in your throat. Butterflies in your stomach. Bad gut feeling. These are all phrases many people use to describe fear and anxiety. You have likely felt anxiety inside your chest or stomach, and your brain usually doesn’t hurt when you’re scared. Many cultures tie cowardice and bravery more <a href="https://afosa.org/the-meaning-of-heart-qalb-in-quran/">to the heart</a> <a href="https://byustudies.byu.edu/article/bowels-of-mercy/">or the guts</a> than to the brain.</p> <p>But science has traditionally seen the brain as the birthplace and processing site of fear and anxiety. Then why and how do you feel these emotions in other parts of your body?</p> <p>I am a <a href="https://scholar.google.com/citations?user=UDytFmIAAAAJ&hl=en">psychiatrist and neuroscientist</a> who researches and treats fear and anxiety. In my book “<a href="https://rowman.com/ISBN/9781538170380/Afraid-Understanding-the-Purpose-of-Fear-and-Harnessing-the-Power-of-Anxiety">Afraid,</a>” I explain how fear works in the brain and the body and what too much anxiety does to the body. Research confirms that while emotions do originate in your brain, it’s your body that carries out the orders.</p> <h2>Fear and the brain</h2> <p>While your brain evolved to save you from a falling rock or speeding predator, the anxieties of modern life are often a lot more abstract. Fifty-thousand years ago, being rejected by your tribe could mean death, but not doing a great job on a public speech at school or at work doesn’t have the same consequences. Your brain, however, <a href="https://doi.org/10.1006/nimg.2002.1179">might not know the difference</a>.</p> <p>There are a few key areas of the brain that are heavily involved in processing fear.</p> <p>When you perceive something as dangerous, whether it’s a gun pointed at you or a group of people looking unhappily at you, these sensory inputs are first relayed to <a href="https://doi.org/10.1038%2Fnpp.2009.121">the amygdala</a>. This small, almond-shaped area of the brain located near your ears detects salience, or the emotional relevance of a situation and how to react to it. When you see something, it determines whether you should eat it, attack it, run away from it or have sex with it.</p> <p><a href="https://theconversation.com/the-science-of-fright-why-we-love-to-be-scared-85885">Threat detection</a> is a vital part of this process, and it has to be fast. Early humans did not have much time to think when a lion was lunging toward them. They had to act quickly. For this reason, the amygdala evolved to bypass brain areas involved in logical thinking and can directly engage physical responses. For example, seeing an angry face on a computer screen can immediately trigger a <a href="https://doi.org/10.1006/nimg.2002.1179">detectable response from the amygdala</a> without the viewer even being aware of this reaction.</p> <figure><iframe src="https://www.youtube.com/embed/xoU9tw6Jgyw?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">In response to a looming threat, mammals often fight, flee or freeze.</span></figcaption></figure> <p><a href="https://doi.org/10.1038/npp.2009.83">The hippocampus</a> is near and tightly connected to the amygdala. It’s involved in memorizing what is safe and what is dangerous, especially in relation to the environment – it puts fear in context. For example, seeing an angry lion in the zoo and in the Sahara both trigger a fear response in the amygdala. But the hippocampus steps in and blocks this response when you’re at the zoo because you aren’t in danger.</p> <p>The <a href="https://doi.org/10.1176/appi.ajp.2016.16030353">prefrontal cortex</a>, located above your eyes, is mostly involved in the cognitive and social aspects of fear processing. For example, you might be scared of a snake until you read a sign that the snake is nonpoisonous or the owner tells you it’s their friendly pet.</p> <p>Although the prefrontal cortex is usually seen as the part of the brain that regulates emotions, it can also teach you fear based on your social environment. For example, you might feel neutral about a meeting with your boss but immediately feel nervous when a colleague tells you about rumors of layoffs. Many <a href="https://theconversation.com/trump-the-politics-of-fear-and-racism-how-our-brains-can-be-manipulated-to-tribalism-139811">prejudices like racism</a> are rooted in learning fear through tribalism.</p> <h2>Fear and the rest of the body</h2> <p>If your brain decides that a fear response is justified in a particular situation, it activates a <a href="https://doi.org/10.1093/med/9780190259440.003.0019">cascade of neuronal and hormonal pathways</a> to prepare you for immediate action. Some of the fight-or-flight response – like heightened attention and threat detection – takes place in the brain. But the body is where most of the action happens.</p> <p>Several pathways prepare different body systems for intense physical action. The <a href="https://doi.org/10.3389/fnins.2014.00043">motor cortex</a> of the brain sends rapid signals to your muscles to prepare them for quick and forceful movements. These include muscles in the chest and stomach that help protect vital organs in those areas. That might contribute to a feeling of tightness in your chest and stomach in stressful conditions.</p> <figure><iframe src="https://www.youtube.com/embed/0IDgBlCHVsA?wmode=transparent&start=0" width="440" height="260" frameborder="0" allowfullscreen="allowfullscreen"></iframe><figcaption><span class="caption">Your sympathetic nervous system is involved in regulating stress.</span></figcaption></figure> <p>The <a href="https://www.ncbi.nlm.nih.gov/books/NBK542195/">sympathetic nervous system</a> is the gas pedal that speeds up the systems involved in fight or flight. Sympathetic neurons are spread throughout the body and are especially dense in places like the heart, lungs and intestines. These neurons trigger the adrenal gland to release hormones like adrenaline that travel through the blood to reach those organs and increase the rate at which they undergo the fear response.</p> <p>To assure sufficient blood supply to your muscles when they’re in high demand, signals from the sympathetic nervous system increase the rate your heart beats and the force with which it contracts. You feel both increased heart rate and contraction force in your chest, which is why you may connect the feeling of intense emotions to your heart.</p> <p>In your lungs, signals from the sympathetic nervous system dilate airways and often increase your breathing rate and depth. Sometimes this results in a feeling of <a href="https://theconversation.com/pain-and-anxiety-are-linked-to-breathing-in-mouse-brains-suggesting-a-potential-target-to-prevent-opioid-overdose-deaths-174187">shortness of breath</a>.</p> <p>As digestion is the last priority during a fight-or-flight situation, sympathetic activation slows down your gut and reduces blood flow to your stomach to save oxygen and nutrients for more vital organs like the heart and the brain. These changes to your gastrointestinal system can be perceived as the discomfort linked to fear and anxiety.</p> <h2>It all goes back to the brain</h2> <p>All bodily sensations, including those visceral feelings from your chest and stomach, are relayed back to the brain through the pathways <a href="https://www.ncbi.nlm.nih.gov/books/NBK555915/">via the spinal cord</a>. Your already anxious and highly alert brain then processes these signals at both conscious and unconscious levels.</p> <p><a href="https://doi.org/10.1176/appi.ajp.2016.16030353">The insula</a> is a part of the brain specifically involved in conscious awareness of your emotions, pain and bodily sensations. The <a href="https://doi.org/10.1038%2Fs41598-019-52776-4">prefrontal cortex</a> also engages in self-awareness, especially by labeling and naming these physical sensations, like feeling tightness or pain in your stomach, and attributing cognitive value to them, like “this is fine and will go away” or “this is terrible and I am dying.” These physical sensations can sometimes create a loop of increasing anxiety as they make the brain feel more scared of the situation because of the turmoil it senses in the body.</p> <p>Although the feelings of fear and anxiety start in your brain, you also feel them in your body because your brain alters your bodily functions. Emotions take place in both your body and your brain, but you become aware of their existence with your brain. As the rapper Eminem recounted in his song “Lose Yourself,” the reason his palms were sweaty, his knees weak and his arms heavy was because his brain was nervous.<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/210871/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><a href="https://theconversation.com/profiles/arash-javanbakht-416594"><em>Arash Javanbakht</em></a><em>, Associate Professor of Psychiatry, <a href="https://theconversation.com/institutions/wayne-state-university-989">Wayne State University</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/if-anxiety-is-in-my-brain-why-is-my-heart-pounding-a-psychiatrist-explains-the-neuroscience-and-physiology-of-fear-210871">original article</a>.</em></p>

Body

Bindi Irwin and Chandler Powell share heart-warming milestone

<p>Bindi Irwin has shared a sweet tribute to her husband Chandler Powell as the couple celebrate an important anniversary. </p> <p>The wildlife warrior couple posted a heartfelt snap to Instagram, celebrating that it had been four years since they got engaged. </p> <p>Bindi said yes when Chandler popped the question in 2019, after the pair met in late 2013 when they were teenagers.</p> <p>Irwin posted a photo to Instagram, showing the couple embracing in front of sunlit bushland.</p> <p>“Exactly four years ago, I said ‘yes’. Loving you is the greatest adventure. <a href="https://www.instagram.com/chandlerpowell/" target="_blank" rel="noopener" data-link-type="article-inline">@chandlerpowell</a>,” she wrote.</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/p/CvE_jP0h7af/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/CvE_jP0h7af/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Bindi Irwin (@bindisueirwin)</a></p> </div> </blockquote> <p>Husband Powell later responded, “Our adventure just keeps getting better. I love you and am forever grateful for you. ❤️”</p> <p>Fans were quick to comment how quickly the time has passed since the couple got engaged, with others sharing their admiration for their loving relationship. </p> <p>One person wrote, “This is what love is! To see this in a world with so much pain truly gives me hope!”</p> <p>The sweet anniversary post came just days after Bindi celebrated her 25th birthday with her husband and their daughter Grace Warrior. </p> <p>To celebrate his wife, Chandler released a video alongside Grace, 2, in which he and Grace sing Happy Birthday.</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/reel/CvDllbjBTxC/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/reel/CvDllbjBTxC/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Chandler Powell (@chandlerpowell)</a></p> </div> </blockquote> <p>Captioning the post, Powell wrote, “Happy birthday to the most strong, kind, & beautiful person that I know.”</p> <p>“Your kind heart is my favourite thing about you,” he added.</p> <p>“I have new admiration for the strength you have mustered to find your new chapter of health. It’s been incredible to watch you blossom as you continue to improve each day."</p> <p>“I love you. Grace loves you. You are our world.”</p> <p><em>Image credits: Instagram </em></p>

Family & Pets

Good news for weekend warriors: people who do much of their exercise on a couple of days still get heart benefits

<p><em><a href="https://theconversation.com/profiles/emmanuel-stamatakis-161783">Emmanuel Stamatakis</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/matthew-ahmadi-1241767">Matthew Ahmadi</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/raaj-kishore-biswas-1374060">Raaj Kishore Biswas</a>, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a></em></p> <p>Physical activity has <a href="https://bjsm.bmj.com/content/54/24/1451">established benefits</a> for health. The <a href="https://bjsm.bmj.com/content/54/24/1451">World Health Organization</a> recommends adults do a minimum of 150–300 minutes of moderate or 75–150 minutes of vigorous activity each week. This can include active transport from place-to-place, exercise for fun and fitness, energetic housework or physical activity at work.</p> <p>These amounts can be accrued by being, as the <a href="https://bjsm.bmj.com/content/54/24/1451">WHO recommends</a>, regularly active throughout the week, or being a “weekend warrior” who does the bulk of their activity on one to two days only, which don’t need to be consecutive.</p> <p>So far, experts haven’t fully established which of the two patterns is better for overall health. For many people, busy lifestyles may make it hard to be physically active every day. It may be more feasible to squeeze most physical activity and exercise into a few days.</p> <p>Fresh <a href="https://jamanetwork.com/journals/jama/fullarticle/2807286">analysis</a> of the large <a href="https://www.ukbiobank.ac.uk/">UK Biobank</a> database attempted to compare these two patterns of weekly activity and compare how they reduced cardiovascular risk for heart attacks, heart failure, irregular heart beat and stroke.</p> <h2>What the new study found</h2> <p>Researchers analysed records from 89,573 participants who wore a wrist activity tracker for seven days and were tracked for cardiovascular events for over six years.</p> <p>Those who did less than the WHO recommended 150 minutes of moderate-to-vigorous physical activity per week were considered inactive. About a third (33.7%) of participants were inactive. Some 42.2% were termed active “weekend warriors” (they did at least 150 minutes and more than half of it occurred within one to two days) and 24% were regularly active (at least 150 minutes with most activity spread out over three or more days).</p> <p>Researchers considered the potential factors that could explain the link between physical activity and new cases of cardiovascular events, such as smoking and alcohol intake. They found both active groups showed similarly lower risk of heart attack (a 27% reduction for weekend warriors and 35% for regularly active people, compared with inactive participants).</p> <p>For heart failure, weekend warriors had a 38% lower risk than inactive people, while regular exercisers had a 36% lower risk. Irregular heartbeat risk was 22% lower for weekend warriors and 19% lower for regularly actively people. Stroke was 21% and 17% lower for weekend warriors and regular exercisers, respectively.</p> <h2>Not so fast. Some study limitations</h2> <p>Although the information was recorded by activity trackers, researchers did not consider on which days of the week the activity was done. Some people may have been active on Saturdays and Sundays, others might have chosen Wednesday and Friday – or different days each week. In that sense, <a href="https://jamanetwork.com/journals/jama/fullarticle/2807286">the study</a> examined a “pseudo-weekend warrior” pattern.</p> <p>Despite the many advantages the UK Biobank activity trackers have over <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2596007">questionnaire-based studies</a>, these trackers are not great at capturing strength-training exercise, such as weights or pilates, and other static activities that have <a href="https://academic.oup.com/aje/article/187/5/1102/4582884">established cardiovascular</a> health benefits.</p> <h2>What other research in this area says</h2> <p>There have been several questionnaire based studies in this area in <a href="https://academic.oup.com/aje/article/160/7/636/136697">the past 20 years</a>.</p> <p>Our <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2596007">2017 study</a>, for example, combined data from 63,591 adults from England and Scotland and tracked them over 12 years. We looked at <a href="https://theconversation.com/weekend-warrior-exercise-is-it-good-for-you-70964">risk reductions</a> for death from any cause, cardiovascular disease and cancer causes. We found similar benefits among people who clocked at least 150 minutes of moderate-intensity physical activity or at least 75 minutes of vigorous-intensity physical activity in one to two sessions per week, compared with three sessions or more per week.</p> <p>Our more <a href="https://www.nature.com/articles/s41591-022-02100-x">recent studies</a> used activity trackers and emphasised the flexibility of activity patterns that benefit the heart and circulation. We found doing short one-minute-long bouts of incidental vigorous physical activity three to four times a day can cut the risk of death from cardiovascular causes by <a href="https://www.nature.com/articles/s41591-022-02100-x">almost half</a>.</p> <p>Similarly, in another study we found just 19 minutes of vigorous physical activity a week was associated with <a href="https://academic.oup.com/eurheartj/article/43/46/4801/6771381">40% reduction</a> in the risk of cardiovascular death, with steadily increasing benefits to the maximum amount of vigorous activity recorded (110 minutes a week linked to a 75% risk reduction).</p> <h2>What it means for you and your routine</h2> <p>Taken together, the <a href="https://jamanetwork.com/journals/jama/fullarticle/2807286">new study</a> and <a href="https://jamanetwork.com/journals/jamainternalmedicine/fullarticle/2596007">previous research</a> suggest the same thing: if it is difficult to find time to be active during a busy week, it is good enough to plan moderate to vigorous physical activities in a couple of weekdays or in the weekend.</p> <p>That said, there are benefits in being regularly physically active on most days of the week. A good session of aerobic exercise, for example, improves health indicators such as <a href="https://www.ahajournals.org/doi/full/10.1161/HYP.0000000000000196">blood pressure</a>, and <a href="https://link.springer.com/article/10.1007/s40279-021-01473-2">blood glucose</a> and <a href="https://lipidworld.biomedcentral.com/articles/10.1186/s12944-017-0515-5">cholesterol levels</a> for a day or longer. Such effects can moderate some of the long-term health risks of these factors and assist with their day-to-day management.</p> <p>But confirmation that we can be flexible about how physical activity is accumulated across the week for heart health benefits is encouraging. It offers more opportunities for more people to be active when it is convenient and practical for them.<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/210053/count.gif?distributor=republish-lightbox-basic" alt="The Conversation" width="1" height="1" /></p> <p><em><a href="https://theconversation.com/profiles/emmanuel-stamatakis-161783">Emmanuel Stamatakis</a>, Professor of Physical Activity, Lifestyle, and Population Health, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>; <a href="https://theconversation.com/profiles/matthew-ahmadi-1241767">Matthew Ahmadi</a>, Postdoctoral Research Fellow, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</a>, and <a href="https://theconversation.com/profiles/raaj-kishore-biswas-1374060">Raaj Kishore Biswas</a>, Research Fellow & Biostatistician, <a href="https://theconversation.com/institutions/university-of-sydney-841">University of Sydney</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/good-news-for-weekend-warriors-people-who-do-much-of-their-exercise-on-a-couple-of-days-still-get-heart-benefits-210053">original article</a>.</em></p>

Body

“My heart is breaking”: The Wiggles perform for dying young fan

<p dir="ltr">The Wiggles have made a young girl’s dreams come true, as they stood by her and performed just hours before she died. </p> <p dir="ltr">Purple Wiggle Lachlan Gillespie, new Blue Wiggle Lucia Field, and Dorothy the Dinosaur visited young Zahra’s bedside in Westmead Children’s Hospital, just before she passed away last month to perform a sweet rendition of <em>Twinkle Twinkle</em>.</p> <p dir="ltr">Earlier this week, Zahra’s mum posted the sweet video on TikTok, while sharing the story of how Zahra was diagnosed with Leigh syndrome, a rare neurometabolic disorder that affects the central nervous system.</p> <p dir="ltr">“On Zahra’s last day, she got a special visit from her fav Wiggles,” Zahra’s mum wrote in the video shared on her TikTok account. </p> <div class="embed" style="font-size: 16px; box-sizing: inherit; margin: 0px; padding: 0px; border: 0px; vertical-align: baseline; outline: none !important;"><iframe class="embedly-embed" style="box-sizing: inherit; margin: 0px; padding: 0px; border-width: 0px; vertical-align: baseline; width: 611px; max-width: 100%; outline: none !important;" title="tiktok embed" src="https://cdn.embedly.com/widgets/media.html?src=https%3A%2F%2Fwww.tiktok.com%2Fembed%2Fv2%2F7254527205701733633&display_name=tiktok&url=https%3A%2F%2Fwww.tiktok.com%2F%40keish_el%2Fvideo%2F7254527205701733633&image=https%3A%2F%2Fp16-sign-sg.tiktokcdn.com%2Fobj%2Ftos-alisg-p-0037%2FoACeAheW25teaIoFQJHPEC2YgpcNAKrzDgaksj%3Fx-expires%3D1689325200%26x-signature%3D8aPR7s6As4g3eiheXA%252B7PmnZSBk%253D&key=59e3ae3acaa649a5a98672932445e203&type=text%2Fhtml&schema=tiktok" width="340" height="700" frameborder="0" scrolling="no" allowfullscreen="allowfullscreen"></iframe></div> <p dir="ltr">In the caption, she added, “This day was so special to us, Zahra was obsessed with the Wiggles and for them to come and see her is a memory we will never forget.”</p> <p dir="ltr">She went on to say that on her last day on earth, her doctors and parents gave her “one full day” off the tube where she got to do “all her favourite things with family and friends”, including the Wiggles.</p> <p dir="ltr">Lucia, who is the daughter of original Blue Wiggle Anthony Field, commented, “Lachy and I were so grateful to have met your beautiful family. May your beautiful little girl be happily resting”.</p> <p dir="ltr">The video has racked up over two million views, with many sharing their condolences for the grieving family. </p> <p dir="ltr">One user said, “I can't handle it. I'm so sorry… my heart breaks for you.”</p> <p dir="ltr">Another emotional viewer wrote, “RIP you little angel, you have earned your wings.”</p> <p dir="ltr">One person wrote that they were praying for Zahra and her family, and her grieving mother responded, “Thank you so much for those prayers. I know they would have kept her with us for as long as she could.”</p> <p dir="ltr" style="line-height: 1.38; margin-top: 0pt; margin-bottom: 18pt;"><em>Image credits: TikTok</em><span id="docs-internal-guid-efb41070-7fff-f887-2ec2-5f55686b6eca"></span></p>

Caring

"A night in hospital and a trip to the burns unit later”: Concerned mum's warning against popular fruit

<p><em><strong>Warning: This article contains images that some readers may find distressing.</strong></em></p> <p>An Aussie mum has taken to the internet and shared photos of her son’s severe burns that came as a result of him playing with a popular fruit. “A night in hospital and a trip to the burns unit later.” She began in her Facebook post.</p> <p>Her son Otis was playing happily outside with a lime in the sunshine, but the next day horror ensued.</p> <p>“It wasn’t until the next day that we noticed a rash appeared.” The mother said.</p> <p>The parents had assumed the rash must’ve been an allergic reaction to the lime juice, however, the rash quickly developed into a “horrific burn,” she added.</p> <p>The parents took Otis to the hospital where they were informed their son was suffering from a condition called phytophotodermatitis.</p> <blockquote class="instagram-media" style="background: #FFF; border: 0; border-radius: 3px; box-shadow: 0 0 1px 0 rgba(0,0,0,0.5),0 1px 10px 0 rgba(0,0,0,0.15); margin: 1px; max-width: 540px; min-width: 326px; padding: 0; width: calc(100% - 2px);" data-instgrm-permalink="https://www.instagram.com/p/Cku5QH2thxE/?utm_source=ig_embed&utm_campaign=loading" data-instgrm-version="14"> <div style="padding: 16px;"> <div style="display: flex; flex-direction: row; align-items: center;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 40px; margin-right: 14px; width: 40px;"> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 100px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 60px;"> </div> </div> </div> <div style="padding: 19% 0;"> </div> <div style="display: block; height: 50px; margin: 0 auto 12px; width: 50px;"> </div> <div style="padding-top: 8px;"> <div style="color: #3897f0; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: 550; line-height: 18px;">View this post on Instagram</div> </div> <div style="padding: 12.5% 0;"> </div> <div style="display: flex; flex-direction: row; margin-bottom: 14px; align-items: center;"> <div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(0px) translateY(7px);"> </div> <div style="background-color: #f4f4f4; height: 12.5px; transform: rotate(-45deg) translateX(3px) translateY(1px); width: 12.5px; flex-grow: 0; margin-right: 14px; margin-left: 2px;"> </div> <div style="background-color: #f4f4f4; border-radius: 50%; height: 12.5px; width: 12.5px; transform: translateX(9px) translateY(-18px);"> </div> </div> <div style="margin-left: 8px;"> <div style="background-color: #f4f4f4; border-radius: 50%; flex-grow: 0; height: 20px; width: 20px;"> </div> <div style="width: 0; height: 0; border-top: 2px solid transparent; border-left: 6px solid #f4f4f4; border-bottom: 2px solid transparent; transform: translateX(16px) translateY(-4px) rotate(30deg);"> </div> </div> <div style="margin-left: auto;"> <div style="width: 0px; border-top: 8px solid #F4F4F4; border-right: 8px solid transparent; transform: translateY(16px);"> </div> <div style="background-color: #f4f4f4; flex-grow: 0; height: 12px; width: 16px; transform: translateY(-4px);"> </div> <div style="width: 0; height: 0; border-top: 8px solid #F4F4F4; border-left: 8px solid transparent; transform: translateY(-4px) translateX(8px);"> </div> </div> </div> <div style="display: flex; flex-direction: column; flex-grow: 1; justify-content: center; margin-bottom: 24px;"> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; margin-bottom: 6px; width: 224px;"> </div> <div style="background-color: #f4f4f4; border-radius: 4px; flex-grow: 0; height: 14px; width: 144px;"> </div> </div> <p style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; line-height: 17px; margin-bottom: 0; margin-top: 8px; overflow: hidden; padding: 8px 0 7px; text-align: center; text-overflow: ellipsis; white-space: nowrap;"><a style="color: #c9c8cd; font-family: Arial,sans-serif; font-size: 14px; font-style: normal; font-weight: normal; line-height: 17px; text-decoration: none;" href="https://www.instagram.com/p/Cku5QH2thxE/?utm_source=ig_embed&utm_campaign=loading" target="_blank" rel="noopener">A post shared by Tiny Hearts (@tinyheartseducation)</a></p> </div> </blockquote> <p>Phytophotodermatitis, more commonly known as margarita burn, is a little-known condition which causes burns to the skin when a chemical called furocoumarin reacts to sunlight.</p> <p>The chemical is found in limes, citrus fruit and some plants.</p> <p>“The small lime he had been innocently playing with - had now burnt his skin horrifically!“ The mum said. “If our story can help raise awareness into phytophotodermatitis at least something good has come out of our horrific experience!”</p> <p>The woman has urged parents to be on the lookout for this little-known skin condition.</p> <p>To minimise the risks of phytophotodermatitis, <a href="https://www.healthline.com/" target="_blank" rel="noopener">Healthline</a> suggests washing hands and other exposed parts of the skin immediately after being outdoors, wearing gloves when gardening, putting on sunscreen before going outdoors and wearing long-sleeved tops and pants in wooded areas.</p> <p>Photo credit: Getty</p>

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