How much time should you spend sitting versus standing? New research reveals the perfect mix for optimal health

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People have a pretty intuitive sense of what is healthy – standing is better than sitting, exercise is great for overall health and getting good sleep is imperative.

However, if exercise in the evening may disrupt our sleep, or make us feel the need to be more sedentary to recover, a key question emerges – what is the best way to balance our 24 hours to optimise our health?

Our research attempted to answer this for risk factors for heart disease, stroke and diabetes. We found the optimal amount of sleep was 8.3 hours, while for light activity and moderate to vigorous activity, it was best to get 2.2 hours each.

Finding the right balance

Current health guidelines recommend you stick to a sensible regime of moderate-to vigorous-intensity physical activity 2.5–5 hours per week.

However mounting evidence now suggests how you spend your day can have meaningful ramifications for your health. In addition to moderate-to vigorous-intensity physical activity, this means the time you spend sitting, standing, doing light physical activity (such as walking around your house or office) and sleeping.

Our research looked at more than 2,000 adults who wore body sensors that could interpret their physical behaviours, for seven days. This gave us a sense of how they spent their average 24 hours.

At the start of the study participants had their waist circumference, blood sugar and insulin sensitivity measured. The body sensor and assessment data was matched and analysed then tested against health risk markers — such as a heart disease and stroke risk score — to create a model.

Using this model, we fed through thousands of permutations of 24 hours and found the ones with the estimated lowest associations with heart disease risk and blood-glucose levels. This created many optimal mixes of sitting, standing, light and moderate intensity activity.

When we looked at waist circumference, blood sugar, insulin sensitivity and a heart disease and stroke risk score, we noted differing optimal time zones. Where those zones mutually overlapped was ascribed the optimal zone for heart disease and diabetes risk.

You’re doing more physical activity than you think

We found light-intensity physical activity (defined as walking less than 100 steps per minute) – such as walking to the water cooler, the bathroom, or strolling casually with friends – had strong associations with glucose control, and especially in people with type 2 diabetes. This light-intensity physical activity is likely accumulated intermittently throughout the day rather than being a purposeful bout of light exercise.

Our experimental evidence shows that interrupting our sitting regularly with light-physical activity (such as taking a 3–5 minute walk every hour) can improve our metabolism, especially so after lunch.

While the moderate-to-vigorous physical activity time might seem a quite high, at more than 2 hours a day, we defined it as more than 100 steps per minute. This equates to a brisk walk.

It should be noted that these findings are preliminary. This is the first study of heart disease and diabetes risk and the “optimal” 24 hours, and the results will need further confirmation with longer prospective studies.

The data is also cross-sectional. This means that the estimates of time use are correlated with the disease risk factors, meaning it’s unclear whether how participants spent their time influences their risk factors or whether those risk factors influence how someone spends their time.

Australia’s adult physical activity guidelines need updating

Australia’s physical activity guidelines currently only recommend exercise intensity and time. A new set of guidelines are being developed to incorporate 24-hour movement. Soon Australians will be able to use these guidelines to examine their 24 hours and understand where they can make improvements.

While our new research can inform the upcoming guidelines, we should keep in mind that the recommendations are like a north star: something to head towards to improve your health. In principle this means reducing sitting time where possible, increasing standing and light-intensity physical activity, increasing more vigorous intensity physical activity, and aiming for a healthy sleep of 7.5–9 hours per night.

Beneficial changes could come in the form of reducing screen time in the evening or opting for an active commute over driving commute, or prioritising an earlier bed time over watching television in the evening.

It’s also important to acknowledge these are recommendations for an able adult. We all have different considerations, and above all, movement should be fun.

Christian Brakenridge, Postdoctoral research fellow at Swinburne University Centre for Urban Transitions, Swinburne University of Technology

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

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  • How To Engage Your Whole Brain

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    The Stroke Of Insight That Nobody Wants

    This is Dr. Jill Bolte Taylor. She’s a neuroanatomist, who, at the age of 37 (when she was a post-doctoral fellow at Harvard Medical School), had what she refers to as her “stroke of insight”.

    That is to say, she had a massive stroke, and after a major brain surgery to remove a clot the size of a golf ball, she spent the next 8 years re-learning to do everything.

    Whereas previously she’d been busy mapping the brain to determine how cells communicate with each other, now she was busy mapping whether socks or shoes should go on first. Needless to say, she got an insight into neuroplasticity that few people would hope for.

    What does she want us to know?

    Dr. Taylor (now once again a successful scientist, lecturer, and author) advocates for “whole brain living”, which involves not taking parts of our brain for granted.

    About those parts…

    Dr. Taylor wants us to pay attention to all the parts regardless of size, ranging from the two hemispheres, all the way down to the billions of brain cells, and yet even further, to the “trillions of molecular geniuses”—because each brain cell is itself reliant on countless molecules of the many neurochemicals that make up our brain.

    For a quick refresher on some of the key players in that latter category, see our Neurotransmitter Cheatsheet 😎

    When it comes to the hemispheres, there has historically been a popular belief that these re divided into:

    • The right brain: emotional, imaginative, creative, fluid feeling
    • The left brain: intellectual, analytical, calculating, crystal thinking

    …which is not true, anatomically speaking, because there are cells on both sides doing their part of both of these broad categories of brain processes.

    However, Dr. Taylor found, while one hemisphere of her brain was much more damaged than the other, that nevertheless she could recover some functions more quickly than others, which, once she was able to resume her career, inspired her model of four distinct ways of cogitating that can be switched-between and played with or against each other:

    Meet The Four Characters Inside Your Brain

    Why this matters

    As she was re-learning everything, the way forward was not quick or easy, and she also didn’t know where she was going, because for obvious reasons, she couldn’t remember, much less plan.

    Looking backwards after her eventual full recovery, she noted a lot of things that she needed during that recovery, some of which she got and some of which she didn’t.

    Most notably for her, she needed the right kind of support that would allow all four of the above “characters” as she puts it, to thrive and grow. And, when we say “grow” here we mean that literally, because of growing new brain cells to replace the lost ones (as well as the simple ongoing process of slowly replacing brain cells).

    For more on growing new brain cells, by the way, see:

    How To Grow New Brain Cells (At Any Age)

    In order to achieve this in all of the required brain areas (i.e., and all of the required brain functions), she also wants us to know… drumroll please

    When to STFU

    Specifically, the ability to silence parts of our brain that while useful in general, aren’t necessarily being useful right now. Since it’s very difficult to actively achieve a negative when it comes to brain-stuff (don’t think of an elephant), this means scheduling time for other parts of our brain to be louder. And that includes:

    • scheduling time to feel (emotionally)
    • scheduling time to feel (gut feelings)
    • scheduling time to feel (kinesthetically)

    …amongst others.

    Note: those three are presented in that order, from least basic to most basic. And why? Because, clever beings that we are, we typically start from a position that’s not remotely basic, such as “overthinking”, for example. So, there’s a wind-down through thinking just the right amount, thinking through simpler concepts, feeling, noticing one’s feelings, noticing noticing one’s feelings, all the way down to what, kinesthetically, are we actually physically feeling.

    ❝It is interesting to note that although our limbic system fucntions throughout our lifetime, it does not mature. As a result, when our emotional “buttons” are pushed, we retain the ability to react to incoming stimulation as though we were a two-year-old, even when we are adults.❞

    ~ Dr. Jill Taylor

    Of course, sometimes the above is not useful, which is why the ability to switch between brain modes is a very important and useful skill to develop.

    And how do we do that? By practising. Which is something that it’s necessary to take up consciously, and pursue consistently. When children are at school, there are (hopefully, ideally) curricula set out to ensure they engage and train all parts of their brain. As adults, this does not tend to get the same amount of focus.

    “Children’s brains are still developing”—indeed, and so are adult brains:

    The Brain As A Work-In-Progress

    Dr. Taylor had the uncommon experience of having to, in many ways, neurologically speaking, redo childhood. And having had a second run at it, she developed an appreciation of the process that most of us didn’t necessarily get when doing childhood just the once.

    In other words: take the time to feel stuff; take the time to quiet down your chatty mind, take the time engage your senses, and take it seriously! Really notice, as though for the first time, what the texture of your carpet is like. Really notice, as though for the first time, what it feels like to swallow some water. Really notice, as though for the first time, what it feels like to experience joy—or sadness, or comfort, or anger, or peace. Exercise your imagination. Make some art (it doesn’t have to win awards; it just has to light up your brain!). Make music (again, it’s about wiring your brain in your body, not about outdoing Mozart in composition and/or performance). Make changes! Make your brain work in the ways it’s not in the habit of doing.

    If you need a little help switching off parts of your brain that are being too active, so that you can better exercise other parts of your brain that might otherwise have been neglected, you might want to try:

    The Off-Button For Your Brain

    Enjoy!

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  • We looked at over 166,000 psychiatric records. Over half showed people were admitted against their will

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    Picture two people, both suffering from a serious mental illness requiring hospital admission. One was born in Australia, the other in Asia.

    Hopefully, both could be treated on a voluntary basis, taking into account their individual needs, preferences and capacity to consent. If not, you might imagine they should be equally likely to receive treatment against their will (known colloquially as being “sectioned” or “scheduled”).

    However, our research published in British Journal of Psychiatry Open suggests this is not the case.

    In the largest study globally of its kind, we found Australians are more likely to be treated in hospital for their acute mental illness against their will if they are born overseas, speak a language other than English or are unemployed.

    What we did and what we found

    We examined more than 166,000 episodes of voluntary and involuntary psychiatric care in New South Wales public hospitals between 2016 and 2021. Most admissions (54%) included at least one day of involuntary care.

    Being brought to hospital via legal means, such as by police or via a court order, was strongly linked to involuntary treatment.

    While our study does not show why this is the case, it may be due to mental health laws. In NSW, which has similar laws to most jurisdictions in Australia, doctors may treat a person on an involuntary basis if they present with certain symptoms indicating serious mental illness (such as hallucinations and delusions) which cause them to require protection from serious harm, and there is no other less-restrictive care available. Someone who has been brought to hospital by police or the courts may be more likely to meet the legal requirement of requiring protection from serious harm.

    The likelihood of involuntary care was also linked to someone’s diagnosis. A person with psychosis or organic brain diseases, such as dementia and delirium, were about four times as likely to be admitted involuntarily compared to someone with anxiety or adjustment disorders (conditions involving a severe reaction to stressors).

    However, our data suggest non-clinical factors contribute to the decision to impose involuntary care.

    Compared with people born in Australia, we found people born in Asia were 42% more likely to be treated involuntarily.

    People born in Africa or the Middle East were 32% more likely to be treated this way.

    Overall, people who spoke a language other than English were 11% more likely to receive involuntary treatment compared to those who spoke English as their first language.

    Some international researchers have suggested higher rates of involuntary treatment seen in people born overseas might be due to higher rates of psychotic illness. But our research found a link between higher rates of involuntary care in people born overseas or who don’t speak English regardless of their diagnosis.

    We don’t know why this is happening. It is likely to reflect a complex interplay of factors about both the people receiving treatment and the way services are provided to them.

    People less likely to be treated involuntarily included those who hold private health insurance, and those referred through a community health centre or outpatients unit.

    Our findings are in line with international studies. These show higher rates of involuntary treatment among people from Black and ethnic minority groups, and people living in areas of higher socioeconomic disadvantage.

    A last resort? Or should we ban it?

    Both the NSW and Australian mental health commissions have called involuntary psychiatric care an avoidable harm that should only be used as a last resort.

    Despite this, one study found Australia’s rate of involuntary admissions has increased by 3.4% per year and it has one of the highest rates of involuntary admissions in the world.

    Involuntary psychiatric treatment is also under increasing scrutiny globally.

    When Australia signed up to the UN Convention on the Rights of Persons with Disabilities, it added a declaration noting it would allow for involuntary treatment of people with mental illness where such treatments are “necessary, as a last resort and subject to safeguards”.

    However, the UN has rejected this, saying it is a fundamental human right “to be free from involuntary detention in a mental health facility and not to be forced to undergo mental health treatment”.

    Others question if involuntary treatment could ever be removed entirely.

    Where to from here?

    Our research not only highlights concerns regarding how involuntary psychiatric treatment is implemented, it’s a first step towards decreasing its use. Without understanding how and when it is used it will be difficult to create effective interventions to reduce it.

    But Australia is still a long way from significantly reducing involuntary treatment.

    We need to provide more care options outside hospital, ones accessible to all Australians, including those born overseas, who don’t speak English, or who come from disadvantaged communities. This includes intervening early enough that people are supported to not become so unwell they end up being referred for treatment via police or the criminal justice system.

    More broadly, we need to do more to reduce stigma surrounding mental illness and to ensure poverty and discrimination are tackled to help prevent more people becoming unwell in the first place.

    Our study also shows we need to do more to respect the autonomy of someone with serious mental illness to choose if they are treated. That’s whether they are in NSW or other jurisdictions.

    And legal reform is required to ensure more states and territories more fully reflect the principal that people who have the capacity to make such decisions should have the right to decline mental health treatment in the same way they would any other health care.

    If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14.

    Amy Corderoy, Medical doctor and PhD candidate studying involuntary psychiatric treatment, School of Psychiatry, UNSW Sydney

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

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  • What’s the difference between shyness and social anxiety?

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    What’s the difference? is a new editorial product that explains the similarities and differences between commonly confused health and medical terms, and why they matter.

    The terms “shyness” and “social anxiety” are often used interchangeably because they both involve feeling uncomfortable in social situations.

    However, feeling shy, or having a shy personality, is not the same as experiencing social anxiety (short for “social anxiety disorder”).

    Here are some of the similarities and differences, and what the distinction means.

    pathdoc/Shutterstock

    How are they similar?

    It can be normal to feel nervous or even stressed in new social situations or when interacting with new people. And everyone differs in how comfortable they feel when interacting with others.

    For people who are shy or socially anxious, social situations can be very uncomfortable, stressful or even threatening. There can be a strong desire to avoid these situations.

    People who are shy or socially anxious may respond with “flight” (by withdrawing from the situation or avoiding it entirely), “freeze” (by detaching themselves or feeling disconnected from their body), or “fawn” (by trying to appease or placate others).

    A complex interaction of biological and environmental factors is also thought to influence the development of shyness and social anxiety.

    For example, both shy children and adults with social anxiety have neural circuits that respond strongly to stressful social situations, such as being excluded or left out.

    People who are shy or socially anxious commonly report physical symptoms of stress in certain situations, or even when anticipating them. These include sweating, blushing, trembling, an increased heart rate or hyperventilation.

    How are they different?

    Social anxiety is a diagnosable mental health condition and is an example of an anxiety disorder.

    For people who struggle with social anxiety, social situations – including social interactions, being observed and performing in front of others – trigger intense fear or anxiety about being judged, criticised or rejected.

    To be diagnosed with social anxiety disorder, social anxiety needs to be persistent (lasting more than six months) and have a significant negative impact on important areas of life such as work, school, relationships, and identity or sense of self.

    Many adults with social anxiety report feeling shy, timid and lacking in confidence when they were a child. However, not all shy children go on to develop social anxiety. Also, feeling shy does not necessarily mean a person meets the criteria for social anxiety disorder.

    People vary in how shy or outgoing they are, depending on where they are, who they are with and how comfortable they feel in the situation. This is particularly true for children, who sometimes appear reserved and shy with strangers and peers, and outgoing with known and trusted adults.

    Individual differences in temperament, personality traits, early childhood experiences, family upbringing and environment, and parenting style, can also influence the extent to which people feel shy across social situations.

    Shy child hiding behind tree
    Not all shy children go on to develop social anxiety. 249 Anurak/Shutterstock

    However, people with social anxiety have overwhelming fears about embarrassing themselves or being negatively judged by others; they experience these fears consistently and across multiple social situations.

    The intensity of this fear or anxiety often leads people to avoid situations. If avoiding a situation is not possible, they may engage in safety behaviours, such as looking at their phone, wearing sunglasses or rehearsing conversation topics.

    The effect social anxiety can have on a person’s life can be far-reaching. It may include low self-esteem, breakdown of friendships or romantic relationships, difficulties pursuing and progressing in a career, and dropping out of study.

    The impact this has on a person’s ability to lead a meaningful and fulfilling life, and the distress this causes, differentiates social anxiety from shyness.

    Children can show similar signs or symptoms of social anxiety to adults. But they may also feel upset and teary, irritable, have temper tantrums, cling to their parents, or refuse to speak in certain situations.

    If left untreated, social anxiety can set children and young people up for a future of missed opportunities, so early intervention is key. With professional and parental support, patience and guidance, children can be taught strategies to overcome social anxiety.

    Why does the distinction matter?

    Social anxiety disorder is a mental health condition that persists for people who do not receive adequate support or treatment.

    Without treatment, it can lead to difficulties in education and at work, and in developing meaningful relationships.

    Receiving a diagnosis of social anxiety disorder can be validating for some people as it recognises the level of distress and that its impact is more intense than shyness.

    A diagnosis can also be an important first step in accessing appropriate, evidence-based treatment.

    Different people have different support needs. However, clinical practice guidelines recommend cognitive-behavioural therapy (a kind of psychological therapy that teaches people practical coping skills). This is often used with exposure therapy (a kind of psychological therapy that helps people face their fears by breaking them down into a series of step-by-step activities). This combination is effective in-person, online and in brief treatments.

    Man working at home with laptop open on lap
    Treatment is available online as well as in-person. ImYanis/Shutterstock

    For more support or further reading

    Online resources about social anxiety include:

    We thank the Black Dog Institute Lived Experience Advisory Network members for providing feedback and input for this article and our research.

    Kayla Steele, Postdoctoral research fellow and clinical psychologist, UNSW Sydney and Jill Newby, Professor, NHMRC Emerging Leader & Clinical Psychologist, UNSW Sydney

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

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  • In Praise of Slowness – by Carl Honoré

    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.

    This isn’t just about “taking the time to smell the roses” although yes, that too. Rather, it’s mostly about looking at what drives us to speed everything up in the first place, and correcting where appropriate.

    If your ancestors had time to eat fruit and lie in the sun, then why, with all of modern technology now available, are you harangued 16+ hours a day by the pressures of universally synchronized timepieces?

    Honoré places a lot of the blame squarely on the industrial revolution; whereas previously our work would be limited by craftsmen who take a year to complete something, or the pace of animals in a field, now humans had to keep up with the very machines that were supposed to serve us—and it’s only got worse from there.

    This book takes a tour of many areas affected by this artificial “need for speed”, and how it harms not just our work-life balance, but also our eating habits, the medical attention we get, and even our love lives.

    The prescription is deceptively simple, “slow down”. But Honoré dedicates the final three chapters of the book to the “how” of this, when of course there’s a lot the outside world will not accommodate—but where we can slow down, there’s good to be gained.

    Bottom line: if you’ve ever felt that you could get all of your life into order if you could just pause the outside world for a week or two, this is the book for you.

    Click here to check out In Praise of Slowness, and make time for what matters most!

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  • When “Normal” Health Is Not What You Want

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    It’s Q&A Day at 10almonds!

    Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

    In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

    As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!

    So, no question/request too big or small

    ❝When going to sleep, I try to breathe through my nose (since everyone says that’s best). But when I wake I often find that I am breathing through my mouth. Is that normal, or should I have my nose checked out?❞

    It is quite normal, but when it comes to health, “normal” does not always mean “optimal”.

    • Good news: it is correctable!
    • Bad news: it is correctable by what may be considered rather an extreme practice that comes with its own inconveniences and health risks.

    Some people correct this by using medical tape to keep their mouth closed at night, ensuring nose-breathing. Advocates of this say that after using it for a while, nose-breathing in sleep will become automatic.

    We know of no hard science to confirm this, and cannot even offer a personal anecdote on this one. Here are some pop-sci articles that do link to the (very few) studies that have been conducted:

    This writer’s personal approach is simply to do breathing exercises when going to sleep and first thing upon awakening, and settle for imperfection in this regard while asleep.

    Meanwhile, take care!

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  • Life Extension Multivitamins vs Centrum Multivitamins – Which is Healthier

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    Our Verdict

    When comparing Life Extension Multivitamins to Centrum Multivitamins, we picked the Life Extension.

    Why?

    The clue here was on the label: “two per day”. It’s not so that they can sell extra filler! It’s because they couldn’t fit it all into one.

    While the Centrum Multivitamins is a (respectably) run-of-the-mill multivitamin (and multimineral) containing reasonable quantities of most vitamins and minerals that people supplement, the Life Extension product has the same plus more:

    • More of the vitamins and minerals; i.e. more of them are hitting 100%+ of the RDA
    • More beneficial supplements, including:
      • Inositol, Alpha lipoic acid, Bio-Quercetin phytosome, phosphatidylcholine complex, Marigold extract, Apigenin, Lycopene, and more that we won’t list here because it starts to get complicated if we do.

    We’ll have to write some main features on some of those that we haven’t written about before, but suffice it to say, they’re all good things.

    Main take-away for today: sometimes more is better; it just necessitates then reading the label to check.

    Want to get some Life Extension Multivitamins (and/or perhaps just read the label on the back)? Here they are on Amazon

    PS: it bears mentioning, since we are sometimes running brands against each other head-to-head in this section: nothing you see here is an advertisement/sponsor unless it’s clearly marked as such. We haven’t, for example, been paid by Life Extension or any agent of theirs, to write the above. It’s just our own research and conclusion.

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