More research shows COVID-19 vaccines are safe for young adults

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What you need to know

  • Myocarditis, or inflammation of the heart muscle, is most commonly caused by a viral infection like COVID-19, not by vaccination.
  • In line with previous research, a recent CDC study found no association between COVID-19 vaccination and sudden cardiac death in previously healthy young people.
  • A COVID-19 infection is much more likely to cause inflammation of the heart muscle than a COVID-19 vaccine, and those cases are typically more severe.

Since the approval of the first COVID-19 vaccines, anti-vaccine advocates have raised concerns about heart muscle inflammation, also called myocarditis, after vaccination to suggest that vaccines are unsafe. They’ve also used concerns about myocarditis to spread false claims that vaccines cause sudden deaths, which is not true.

Research has consistently shown that cases of myocarditis after vaccination are extremely rare and usually mild, and a new study from the CDC found no association between sudden cardiac death and COVID-19 vaccination in young adults.

Read on to learn more about myocarditis and what the latest research says about COVID-19 vaccine safety.

What is myocarditis?

Myocarditis is inflammation of the myocardium, or the middle muscular layer of the heart wall. This inflammation weakens the heart’s ability to pump blood. Symptoms may include fatigue, shortness of breath, chest pain, rapid or irregular heartbeat, and flu-like symptoms.

Myocarditis may resolve on its own. In rare cases, it may lead to stroke, heart failure, heart attack, or death.

What causes myocarditis?

Myocarditis is typically caused by a viral infection like COVID-19. Bacteria, parasites, fungi, chemicals, and certain medications can also cause myocarditis.

In very rare cases, some people develop myocarditis after receiving a COVID-19 vaccine, but these cases are usually mild and resolve on their own. In contrast, a COVID-19 infection is much more likely to cause myocarditis, and those cases are typically more severe.

Staying up to date on vaccines reduces your risk of developing myocarditis from a COVID-19 infection.

Are COVID-19 vaccines safe for young people?

Yes. COVID-19 vaccines have been rigorously tested and monitored over the past three years and have been determined to be safe for everyone 6 months and older. A recent CDC study found no association between COVID-19 vaccination and sudden cardiac death in previously healthy young adults.

The benefits of vaccination outweigh any potential risks. Staying up to date on COVID-19 vaccines reduces your risk of severe illness, hospitalization, death, long COVID, and COVID-19-related complications, such as myocarditis.

The CDC recommends people 65 and older and immunocompromised people receive an additional dose of the updated COVID-19 vaccine this spring—if at least four months have passed since they received a COVID-19 vaccine.

For more information, talk to your health care provider.

This article first appeared on Public Good News and is republished here under a Creative Commons license.

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  • ‘It’s okay to poo at work’: new health campaign highlights a common source of anxiety

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    For most people, the daily or near-daily ritual of having a bowel motion is not something we give a great deal of thought to. But for some people, the need to do a “number two” in a public toilet or at work can be beset with significant stress and anxiety.

    In recognition of the discomfort people may feel around passing a bowel motion at work, the Queensland Department of Health recently launched a social media campaign with the message “It’s okay to poo at work”.

    The campaign has gained significant traction on Instagram and Facebook. It has been praised by health and marketing experts for its humorous handling of a taboo topic.

    A colourful Instagram post is accompanied by a caption warning of the health risks of “holding it in”, including haemorrhoids and other gastrointestinal problems. The caption also notes:

    If you find it extremely difficult to poo around other people, you might have parcopresis.

    Queensland Health/Instagram

    What is parcopresis?

    Parcopresis, sometimes called “shy bowel”, occurs when people experience a difficulty or inability to poo in public toilets due to fear of perceived scrutiny by others.

    People with parcopresis may find it difficult to go to the toilet in public places such as shopping centres, restaurants, at work or at school, or even at home when friends or family are around.

    They may fear being judged by others about unpleasant smells or sounds when they have a bowel motion, or how long they take to go, for example.

    Living with a gastrointestinal condition (at least four in ten Australians do) may contribute to parcopresis due to anxiety about the need to use a toilet frequently, and perceived judgment from others when doing so. Other factors, such as past negative experiences or accessibility challenges, may also play a role.

    A man in office attire holding a roll of toilet paper.
    Some people may feel uncomfortable about using the toilet at work. Motortion Films/Shutterstock

    For sufferers, anxiety can present in the form of a faster heart rate, rapid breathing, sweating, muscle tension, blushing, nausea, trembling, or a combination of these symptoms. They may experience ongoing worry about situations where they may need to use a public toilet.

    Living with parcopresis can affect multiple domains of life and quality of life overall. For example, sufferers may have difficulties relating to employment, relationships and social life. They might avoid travelling or attending certain events because of their symptoms.

    How common is parcopresis?

    We don’t really know how common parcopresis is, partly due to the difficulty of evaluating this behaviour. It’s not necessarily easy or appropriate to follow people around to track whether they use or avoid public toilets (and their reasons if they do). Also, observing individual bathroom activities may alter the person’s behaviour.

    I conducted a study to try to better understand how common parcopresis is. The study involved 714 university students. I asked participants to respond to a series of vignettes, or scenarios.

    In each vignette participants were advised they were at a local shopping centre and they needed to have a bowel motion. In the vignettes, the bathrooms (which had been recently cleaned) had configurations of either two or three toilet stalls. Each vignette differed by the configuration of stalls available.

    The rate of avoidance was just over 14% overall. But participants were more likely to avoid using the toilet when the other stalls were occupied.

    Around 10% avoided going when all toilets were available. This rose to around 25% when only the middle of three toilets was available. Men were significantly less likely to avoid going than women across all vignettes.

    For those who avoided the toilet, many either said they would go home to poo, use an available disabled toilet, or come back when the bathroom was empty.

    Parcopresis at work

    In occupational settings, the rates of anxiety about using shared bathrooms may well be higher for a few reasons.

    For example, people may feel more self-conscious about their bodily functions being heard or noticed by colleagues, compared to strangers in a public toilet.

    People may also experience guilt, shame and fear about being judged by colleagues or supervisors if they need to make extended or frequent visits to the bathroom. This may particularly apply to people with a gastrointestinal condition.

    Reducing restroom anxiety

    Using a public toilet can understandably cause some anxiety or be unpleasant. But for a small minority of people it can be a real problem, causing severe distress and affecting their ability to engage in activities of daily living.

    If doing a poo in a toilet at work or another public setting causes you anxiety, be kind to yourself. A number of strategies might help:

    • identify and challenge negative thoughts about using public toilets and remind yourself that using the bathroom is normal, and that most people are not paying attention to others in the toilets
    • try to manage stress through relaxation techniques such as deep breathing and progressive muscle relaxation, which involves tensing and relaxing different muscles around the body
    • engaging in gradual exposure can be helpful, which means visiting public toilets at different times and locations, so you can develop greater confidence in using them
    • use grounding or distraction techniques while going to the toilet. These might include listening to music, watching something on your phone, or focusing on your breathing.

    If you feel parcopresis is having a significant impact on your life, talk to your GP or a psychologist who can help identify appropriate approaches to treatment. This might include cognitive behavioural therapy.

    Simon Robert Knowles, Associate Professor and Clinical Psychologist, Swinburne University of Technology

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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

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    It has been a long winter, filled with many viruses and cost-of-living pressures, on top of the usual mix of work, study, life admin and caring responsibilities.

    Stress is an inevitable part of life. In short bursts, our stress response has evolved as a survival mechanism to help us be more alert in fight or flight situations.

    But when stress is chronic, it weakens the immune system and makes us more vulnerable to illnesses such as the common cold, flu and COVID.

    Pexels/Ketut Subiyanto

    Stress makes it harder to fight off viruses

    When the immune system starts to break down, a virus that would normally have been under control starts to flourish.

    Once you begin to feel sick, the stress response rises, making it harder for the immune system to fight off the disease. You may be sick more often and for longer periods of time, without enough immune cells primed and ready to fight.

    In the 1990s, American psychology professor Sheldon Cohen and his colleagues conducted a number of studies where healthy people were exposed to an upper respiratory infection, through drops of virus placed directly into their nose.

    These participants were then quarantined in a hotel and monitored closely to determine who became ill.

    One of the most important factors predicting who got sick was prolonged psychological stress.

    Cortisol suppresses immunity

    “Short-term stress” is stress that lasts for a period of minutes to hours, while “chronic stress” persists for several hours per day for weeks or months.

    When faced with a perceived threat, psychological or physical, the hypothalamus region of the brain sets off an alarm system. This signals the release of a surge of hormones, including adrenaline and cortisol.

    Human brain illustration
    The hypothalamus sets off an alarm system in response to a real or perceived threat. stefan3andrei/Shutterstock

    In a typical stress response, cortisol levels quickly increase when stress occurs, and then rapidly drop back to normal once the stress has subsided. In the short term, cortisol suppresses inflammation, to ensure the body has enough energy available to respond to an immediate threat.

    But in the longer term, chronic stress can be harmful. A Harvard University study from 2022 showed that people suffering from psychological distress in the lead up to their COVID infection had a greater chance of experiencing long COVID. They classified this distress as depression, probable anxiety, perceived stress, worry about COVID and loneliness.

    Those suffering distress had close to a 50% greater risk of long COVID compared to other participants. Cortisol has been shown to be high in the most severe cases of COVID.

    Stress causes inflammation

    Inflammation is a short-term reaction to an injury or infection. It is responsible for trafficking immune cells in your body so the right cells are present in the right locations at the right times and at the right levels.

    The immune cells also store a memory of that threat to respond faster and more effectively the next time.

    Initially, circulating immune cells detect and flock to the site of infection. Messenger proteins, known as pro-inflammatory cytokines, are released by immune cells, to signal the danger and recruit help, and our immune system responds to neutralise the threat.

    During this response to the infection, if the immune system produces too much of these inflammatory chemicals, it can trigger symptoms such as nasal congestion and runny nose.

    Man blows nose
    Our immune response can trigger symptoms such as a runny nose. Alyona Mandrik/Shutterstock

    What about chronic stress?

    Chronic stress causes persistently high cortisol secretion, which remains high even in the absence of an immediate stressor.

    The immune system becomes desensitised and unresponsive to this cortisol suppression, increasing low-grade “silent” inflammation and the production of pro-inflammatory cytokines (the messenger proteins).

    Immune cells become exhausted and start to malfunction. The body loses the ability to turn down the inflammatory response.

    Over time, the immune system changes the way it responds by reprogramming to a “low surveillance mode”. The immune system misses early opportunities to destroy threats, and the process of recovery can take longer.

    So how can you manage your stress?

    We can actively strengthen our immunity and natural defences by managing our stress levels. Rather than letting stress build up, try to address it early and frequently by:

    1) Getting enough sleep

    Getting enough sleep reduces cortisol levels and inflammation. During sleep, the immune system releases cytokines, which help fight infections and inflammation.

    2) Taking regular exercise

    Exercising helps the lymphatic system (which balances bodily fluids as part of the immune system) circulate and allows immune cells to monitor for threats, while sweating flushes toxins. Physical activity also lowers stress hormone levels through the release of positive brain signals.

    3) Eating a healthy diet

    Ensuring your diet contains enough nutrients – such as the B vitamins, and the full breadth of minerals like magnesium, iron and zinc – during times of stress has a positive impact on overall stress levels. Staying hydrated helps the body to flush out toxins.

    4) Socialising and practising meditation or mindfulness

    These activities increase endorphins and serotonin, which improve mood and have anti-inflammatory effects. Breathing exercises and meditation stimulate the parasympathetic nervous system, which calms down our stress responses so we can “reset” and reduce cortisol levels.

    Sathana Dushyanthen, Academic Specialist & Lecturer in Cancer Sciences & Digital Health| Superstar of STEM| Science Communicator, The University of Melbourne

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  • The Path to Longevity – by Dr. Luigi Fontana

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    We’ve reviewed other “expand your healthspan” books, and while they’re good (or else we wouldn’t include them), this is top-tier, up there with Dr. Greger’s books while being more accessible (more on this later).

    This book is far more informational than opinionated, and while some reviewers have described the book as motivating them, that’s not at all the tone, and it’s clear that (beyond hoping for the reader to have to information to promote a long healthy life), the author has no particular agenda to push.

    One example: while he gives a whole-foods, plant-based diet a “A+” rating, he puts the (often meat/fish-heavy) paleo diet at a close “A-“, depending on the animal products chosen (which can swing it a lot, and he discusses this in some detail).

    In the category of criticism… This reviewer has none. Sometimes it seemed something was going unaddressed, but it would be addressed later.

    Stylistically, the text is easy-reading and/but has a lot of references to hard science, complete with charts, diagrams, and so forth. The impression that this reviewer got is that Dr. Fontana took pains to convey as much science as possible, with (unlike Dr. Greger) as little jargon as possible. And that goes a long way.

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  • Regular Nail Polish vs Gel Nail Polish – Which is Healthier?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Our Verdict

    When comparing regular nail polish to gel nail polish, we picked the regular.

    Why?

    This one’s less about what’s in the bottle, and more about what gets done to your hands:

    • Regular nail polish application involves carefully brushing it on.
    • Regular nail polish removal involves wiping with acetone.

    …whereas:

    • Gel nail polish application involves deliberately damaging (roughing up) the nail to allow the color coat to adhere, then when the top coat is applied, holding the nails (and thus, the attached fingers) under a UV light to set it. That UV lamp exposure is very bad for the skin.
    • Gel nail polish removal involves soaking in acetone, which is definitely worse than wiping with acetone. Failure to adequately soak it will result in further damage to the nail while trying to get the base coat off the nail that you already deliberately damaged when first applying it.

    All in all, regular nail polish isn’t amazing for nail health (healthiest is for nails to be free and naked), but for those of us who like a little bit of color there, regular is a lot better than gel.

    Gel nail polish damages the nail itself by necessity, and presents a cumulative skin cancer risk and accelerated aging of the skin, by way of the UV lamp use.

    For your interest, here are the specific products that we compared, but the above goes for any of this kind:

    Regular nail polish | Gel nail polish

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  • Is still water better for you than sparkling water?

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    Still or sparkling? It’s a question you’ll commonly hear in a café or restaurant and you probably have a preference. But is there any difference for your health?

    If you love the fizz, here’s why you don’t have to pass on the sparkling water.

    Brent Hofacker/Shutterstock

    What makes my water sparkle?

    This article specifically focuses on comparing still filtered water to carbonated filtered water (called “sparkling water” or “unflavoured seltzer”). Soda water, mineral water, tonic water and flavoured water are similar, but not the same product.

    The bubbles in sparkling water are created by adding carbon dioxide to filtered water. It reacts to produce carbonic acid, which makes sparkling water more acidic (a pH of about 3.5) than still (closer to neutral, with a pH around 6.5-8.5).

    Which drink is healthiest?

    Water is the best way to hydrate our bodies. Research shows when it comes to hydration, still and sparkling water are equally effective.

    Some people believe water is healthier when it comes from a sealed bottle. But in Australia, tap water is monitored very carefully. Unlike bottled water, it also has the added benefit of fluoride, which can help protect young children against tooth decay and cavities.

    Sparkling or still water is always better than artificially sweetened flavoured drinks or juices.

    Isn’t soda water bad for my teeth and bones?

    There’s no evidence sparkling water damages your bones. While drinking a lot of soft drinks is linked to increased fractures, this is largely due to their association with higher rates of obesity.

    Sparkling water is more acidic than still water, and acidity can soften the teeth’s enamel. Usually this is not something to be too worried about, unless it is mixed with sugar or citrus, which has much higher levels of acidity and can harm teeth.

    However, if you grind your teeth often, the softening could enhance the damage it causes. If you’re undertaking a home whitening process, sparkling water might discolour your teeth.

    In most other cases, it would take a lot of sparkling water to pass by the teeth, for a long period of time, to cause any noticeable damage.

    How does drinking water affect digestion?

    There is a misconception drinking water (of any kind) with a meal is bad for digestion.

    While theoretically water could dilute stomach acid (which breaks down food), the practice of drinking it doesn’t appear to have any negative effect. Your digestive system simply adapts to the consistency of the meal.

    Some people do find that carbonated beverages cause some stomach upset. This is due to the build-up of gases, which can cause bloating, cramping and discomfort. For people with an overactive bladder, the acidity might also aggravate the urinary system.

    Interestingly, the fizzy “buzz” you feel in your mouth from sparkling water fades the more you drink it.

    Is cold water harder to digest?

    You’ve chosen still or sparkling water. What about its temperature?

    There are surprisingly few studies about the effect of drinking cold water compared to room temperature. There is some evidence colder water (at two degrees Celsius) might inhibit gastric contractions and slow down digestion. Ice water may constrict blood vessels and cause cramping.

    However other research suggests drinking cold water might temporarily boost metabolism, as the body needs to expend energy to warm it up to body temperature. This effect is minimal and unlikely to lead to significant weight loss.

    Which water wins?

    The bottom line is water is essential, hydrates us and has countless other health benefits. Water, with carbonated bubbles or without, will always be the healthiest drink to choose.

    And if you’re concerned about any impact to teeth enamel, one trick is to follow sparkling water with a glass of still. This helps rinse the teeth and return your mouth’s acidity back to normal.

    Christian Moro, Associate Professor of Science & Medicine, Bond University and Charlotte Phelps, Senior Teaching Fellow, Medical Program, Bond University

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • Greek Yogurt vs Cottage Cheese – Which is Healthier?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Our Verdict

    When comparing Greek yogurt to cottage cheese, we picked the yogurt.

    Why?

    These are both dairy products popularly considered healthy, mostly for their high-protein, low-carb, low-fat profile. We’re going to assume that both were made without added sugars. Thus, their macro profiles are close to identical, and nothing between them there.

    In the category of vitamins, both are a good source of some B vitamins, and neither are good source of much else. The B-vitamins they have most of, B2 and B12, Greek yogurt has more.

    We’ll call this a small win for Greek yogurt.

    As they are dairy products, you might have expected them to contain vitamin D—however (unless they have been artificially fortified, as is usually done with plant-based equivalents) they contain none or trace amounts only.

    When it comes to minerals, both are reasonable sources of calcium, selenium, and phosphorus. Of these, they’re equal on the selenium, while cottage cheese has more phosphorus and Greek yogurt has more calcium.

    Since it’s also a mineral (even if it’s usually one we’re more likely to be trying to get less of), it’s also worth noting here that cottage cheese is quite high in sodium, while Greek yogurt is not.

    Another win for Greek yogurt.

    Beyond those things, we’d be remiss not to mention that Greek yogurt contains plenty of probiotic bacteria, while cottage cheese does not.

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    Take care!

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