The Obesity Code – by Dr. Jason Fung

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.

Firstly, if you have already read Dr. Fung’s other book, The Diabetes Code, which we reviewed a little while ago, you can probably skip this one. It has mostly the same information, presented with a different focus.

While The Diabetes Code assumes you are diabetic, or prediabetic, or concerned about avoiding/reversing those conditions, The Obesity Code assumes you are obese, or heading in that direction, or otherwise are concerned about avoiding/reversing obesity.

What it’s not, though, is a weight loss book. Will it help if you want to lose weight? Yes, absolutely. But there is no talk here of weight loss goals, nor any motivational coaching, nor week-by-week plans, etc.

Instead, it’s more an informative textbook. With exactly the sort of philosophy we like here at 10almonds: putting information into people’s hands, so everyone can make the best decisions for themselves, rather than blindly following someone else’s program.

Dr. Fung explains why various dieting approaches don’t work, and how we can work around such things as our genetics, as well as most external factors except for poverty. He also talks us through how to change our body’s insulin response, and get our body working more like a lean machine and less like a larder for hard times.

Bottom line: this is a no-frills explanation of why your body does what it does when it comes to fat storage, and how to make it behave differently about that.

Click here to check out The Obesity Code, and learn about your body’s relationship with the fat that it stores—and how to change that, if you so desire!

Don’t Forget…

Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

Recommended

  • Deskbound – by Kelly Starrett and Glen Cordoza
  • Superfood Soba Noodle Salad
    Whip up a nutrient-packed Japanese soba noodle salad with fresh veggies and a homemade dressing in just minutes!

Learn to Age Gracefully

Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Semaglutide for Weight Loss?

    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.

    Semaglutide for weight loss?

    Semaglutide is the new kid on the weight-loss block, but it’s looking promising (with some caveats!).

    Most popularly by brand names Ozempic and Wegovy, it was first trialled to help diabetics*, and is now sought-after by the rest of the population too. So far, only Wegovy is FDA-approved for weight loss. It contains more semaglutide than Ozempic, and was developed specifically for weight loss, rather than for diabetes.

    *Specifically: diabetics with type 2 diabetes. Because it works by helping the pancreas to make insulin, it’s of no help whatsoever to T1D folks, sadly. If you’re T1D and reading this though, today’s book of the day is for you!

    First things first: does it work as marketed for diabetes?

    It does! At a cost: a very common side effect is gastrointestinal problems—same as for tirzepatide, which (like semaglutide) is a GLP-1 agonist, meaning it works the same way. Here’s how they measure up:

    As you can see, both of them work wonders for pancreatic function and insulin sensitivity!

    And, both of them were quite unpleasant for around 20% of participants:

    ❝Tirzepatide, oral and SC semaglutide has a favourable efficacy in treating T2DM. Gastrointestinal adverse events were highly recorded in tirzepatide, oral and SC semaglutide groups.❞

    ~ Zaazouee et al., 2022

    What about for weight loss, if not diabetic?

    It works just the same! With just the same likelihood of gastro-intestinal unpleasantries, though. There’s a very good study that was done with 1,961 overweight adults; here it is:

    Once-Weekly Semaglutide in Adults with Overweight or Obesity

    The most interesting things here are the positive results and the side effects:

    ❝The mean change in body weight from baseline to week 68 was −14.9% in the semaglutide group as compared with −2.4% with placebo, for an estimated treatment difference of −12.4 percentage points (95% confidence interval [CI], −13.4 to −11.5; P<0.001).❞

    ~ Wilding et al., 2021

    In other words: if you take this, you’re almost certainly going to get something like 6x better weight loss results than doing the same thing without it.

    ❝Nausea and diarrhea were the most common adverse events with semaglutide; they were typically transient and mild-to-moderate in severity and subsided with time. More participants in the semaglutide group than in the placebo group discontinued treatment owing to gastrointestinal events (59 [4.5%] vs. 5 [0.8%])❞

    ~ ibid.

    In other words: you have about a 3% chance of having unpleasant enough side effects that you don’t want to continue treatment (contrast this with the 20%ish chance of unpleasant side effects of any extent)!

    Any other downsides we should know about?

    If you stop taking it, weight regain is likely. For example, a participant in one of the above-mentioned studies who lost 22% of her body weight with the drug’s help, says:

    ❝Now that I am no longer taking the drug, unfortunately, my weight is returning to what it used to be. It felt effortless losing weight while on the trial, but now it has gone back to feeling like a constant battle with food. I hope that, if the drug can be approved for people like me, my [doctor] will be able to prescribe the drug for me in the future.❞

    ~ Jan, a trial participant at UCLH

    Source: Gamechanger drug for treating obesity cuts body weight by 20% <- University College London Hospitals (NHS)

    Is it injection-only, or is there an oral option?

    An oral option exists, but (so far) is on the market only in the form of Rybelsus, another (slightly older) drug containing semaglutide, and it’s (so far) only FDA-approved for diabetes, not for weight loss. See:

    A new era for oral peptides: SNAC and the development of oral semaglutide for the treatment of type 2 diabetes ← for the science

    FDA approves first oral GLP-1 treatment for type 2 diabetes ← For the FDA statement

    Where can I get these?

    Availability and prescribing regulations vary by country (because the FDA’s authority stops at the US borders), but here is the website for each of them if you’d like to learn more / consider if they might help you:

    Rybelsus / Ozempic / Wegovy

    Share This Post

  • What is PNF stretching, and will it improve my flexibility?

    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.

    Whether improving your flexibility was one of your new year’s resolutions, or you’ve been inspired watching certain tennis stars warming up at the Australian Open, maybe 2025 has you keen to focus on regular stretching.

    However, a quick Google search might leave you overwhelmed by all the different stretching techniques. There’s static stretching and dynamic stretching, which can be regarded as the main types of stretching.

    But there are also some other potentially lesser known types of stretching, such as PNF stretching. So if you’ve come across PNF stretching and it piques your interest, what do you need to know?

    Undrey/Shutterstock

    What is PNF stretching?

    PNF stretching stands for proprioceptive neuromuscular facilitation. It was developed in the 1940s in the United States by neurologist Herman Kabat and physical therapists Margaret Knott and Dorothy Voss.

    PNF stretching was initially designed to help patients with neurological conditions that affect the movement of muscles, such as polio and multiple sclerosis.

    By the 1970s, its popularity had seen PNF stretching expand beyond the clinic and into the sporting arena where it was used by athletes and fitness enthusiasts during their warm-up and to improve their flexibility.

    Although the specifics have evolved over time, PNF essentially combines static stretching (where a muscle is held in a lengthened position for a short period of time) with isometric muscle contractions (where the muscle produces force without changing length).

    PNF stretching is typically performed with the help of a partner.

    There are 2 main types

    The two most common types of PNF stretching are the “contract-relax” and “contract-relax-agonist-contract” methods.

    The contract-relax method involves putting a muscle into a stretched position, followed immediately by an isometric contraction of the same muscle. When the person stops contracting, the muscle is then moved into a deeper stretch before the process is repeated.

    For example, to improve your hamstring flexibility, you could lie down and get a partner to lift your leg up just to the point where you begin to feel a stretch in the back of your thigh.

    Once this sensation eases, attempt to push your leg back towards the ground as your partner resists the movement. After this, your partner should now be able to lift your leg up slightly higher than before until you feel the same stretching sensation.

    This technique was based on the premise that the contracted muscle would fall “electrically silent” following the isometric contraction and therefore not offer its usual level of resistance to further stretching (called “autogenic inhibition”). The contract-relax method attempts to exploit this brief window to create a deeper stretch than would otherwise be possible without the prior muscle contraction.

    The contract-relax-agonist-contract method is similar. But after the isometric contraction of the stretched muscle, you perform an additional contraction of the muscle group opposing the muscle being stretched (referred to as the “agonist” muscle), before the muscle is moved into a static stretch once more.

    Again, if you’re trying to improve hamstring flexibility, immediately after trying to push your leg towards the ground you would attempt to lift it back towards the ceiling (this bit without partner resistance). You would do this by contracting the muscles on the front of the thigh (the quadriceps, the agonist muscle in this case).

    Likewise, after this, your partner should be able to lift your leg up slightly higher than before.

    The contract-relax-agonist-contract method is said to take advantage of a phenomenon known as “reciprocal inhibition.” This is where contracting the muscle group opposite that of the muscle being stretched leads to a short period of reduced activation of the stretched muscle, allowing the muscle to stretch further than normal.

    What does the evidence say?

    Research has shown PNF stretching is associated with improved flexibility.

    While it has been suggested that both PNF methods improve flexibility via changes in nervous system function, research suggests they may simply improve our ability to tolerate stretching.

    It’s worth noting most of the research on PNF stretching and flexibility has focused on healthy populations. This makes it difficult to provide evidence-based recommendations for people with clinical conditions.

    And it may not be the most effective method if you’re looking to improve your flexibility in the long term. A 2018 review found static stretching was better for improving flexibility compared to PNF stretching. But other research has found it could offer greater immediate benefits for flexibility than static stretching.

    At present, similar to other types of stretching, research linking PNF stretching to injury prevention and improved athletic performance is relatively inconclusive.

    PNF stretching may actually lead to small temporary deficits in performance of strength, power, and speed-based activities if performed immediately beforehand. So it’s probably best done after exercise or as a part of a standalone flexibility session.

    A man stretching his hamstring overlooking the ocean.
    Static stretching may be a more effective way to improve flexibility over the long-term. GaudiLab/Shutterstock

    How much should you do?

    It appears that a single contract-relax or contract-relax-agonist-contract repetition per muscle, performed twice per week, is enough to improve flexibility.

    The contraction itself doesn’t need to be hard and forceful – only about 20% of your maximal effort should suffice. The contraction should be held for at least three seconds, while the static stretching component should be maintained until the stretching sensation eases.

    So PNF stretching is potentially a more time-efficient way to improve flexibility, compared to, for example, static stretching. In a recent study we found four minutes of static stretching per muscle during a single session is optimal for an immediate improvement in flexibility.

    Is PNF stretching the right choice for me?

    Providing you have a partner who can help you, PNF stretching could be a good option. It might also provide a faster way to become more flexible for those who are time poor.

    However, if you’re about to perform any activities that require strength, power, or speed, it may be wise to limit PNF stretching to afterwards to avoid any potential deficits in performance.

    Lewis Ingram, Lecturer in Physiotherapy, University of South Australia and Hunter Bennett, Lecturer in Exercise Science, University of South Australia

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

    Share This Post

  • When Age Is A Flexible Number

    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.

    Aging, Counterclockwise!

    In the late 1970s, Dr. Ellen Langer hypothesized that physical markers of aging could be affected by psychosomatic means.

    Note: psychosomatic does not mean “it’s all in your head”.

    Psychosomatic means “your body does what your brain tells it to do, for better or for worse”

    She set about testing that, in what has been referred to since as…

    The Counterclockwise Study

    A small (n=16) sample of men in their late 70s and early 80s were recruited in what they were told was a study about reminiscing.

    Back in the 1970s, it was still standard practice in the field of psychology to outright lie to participants (who in those days were called “subjects”), so this slight obfuscation was a much smaller ethical aberration than in some famous studies of the same era and earlier (cough cough Zimbardo cough Milgram cough).

    Anyway, the participants were treated to a week in a 1950s-themed retreat, specifically 1959, a date twenty years prior to the experiment’s date in 1979. The environment was decorated and furnished authentically to the date, down to the food and the available magazines and TV/radio shows; period-typical clothing was also provided, and so forth.

    • The control group were told to spend the time reminiscing about 1959
    • The experimental group were told to pretend (and maintain the pretense, for the duration) that it really was 1959

    The results? On many measures of aging, the experimental group participants became quantifiably younger:

    ❝The experimental group showed greater improvement in joint flexibility, finger length (their arthritis diminished and they were able to straighten their fingers more), and manual dexterity.

    On intelligence tests, 63 percent of the experimental group improved their scores, compared with only 44 percent of the control group. There were also improvements in height, weight, gait, and posture.

    Finally, we asked people unaware of the study’s purpose to compare photos taken of the participants at the end of the week with those submitted at the beginning of the study. These objective observers judged that all of the experimental participants looked noticeably younger at the end of the study.❞

    ~ Dr. Ellen Langer

    Remember, this was after one week.

    Her famous study was completed in 1979, and/but not published until eleven years later in 1990, with the innocuous title:

    Higher stages of human development: Perspectives on adult growth

    You can read about it much more accessibly, and in much more detail, in her book:

    Counterclockwise: A Proven Way to Think Yourself Younger and Healthier – by Dr. Ellen Langer

    We haven’t reviewed that particular book yet, so here’s Linda Graham’s review, that noted:

    ❝Langer cites other research that has made similar findings.

    In one study, for instance, 650 people were surveyed about their attitudes on aging. Twenty years later, those with a positive attitude with regard to aging had lived seven years longer on average than those with a negative attitude to aging.

    (By comparison, researchers estimate that we extend our lives by four years if we lower our blood pressure and reduce our cholesterol.)

    In another study, participants read a list of negative words about aging; within 15 minutes, they were walking more slowly than they had before.❞

    ~ Linda Graham

    Read the review in full:

    Aging in Reverse: A Review of Counterclockwise

    The Counterclockwise study has been repeated since, and/but we are still waiting for the latest (exciting, much larger sample, 90 participants this time) study to be published. The research proposal describes the method in great detail, and you can read that with one click over on PubMed:

    PubMed | Ageing as a mindset: a study protocol to rejuvenate older adults with a counterclockwise psychological intervention

    It was approved, and has now been completed (as of 2020), but the results have not been published yet; you can see the timeline of how that’s progressing over on ClinicalTrials.gov:

    Clinical Trials | Ageing as a Mindset: A Counterclockwise Experiment to Rejuvenate Older Adults

    Hopefully it’ll take less time than the eleven years it took for the original study, but in the meantime, there seems to be nothing to lose in doing a little “Citizen Science” for ourselves.

    Maybe a week in a 20 years-ago themed resort (writer’s note: wow, that would only be 2004; that doesn’t feel right; it should surely be at least the 90s!) isn’t a viable option for you, but we’re willing to bet it’s possible to “microdose” on this method. Given that the original study lasted only a week, even just a themed date-night on a regular recurring basis seems like a great option to explore (if you’re not partnered then well, indulge yourself how best you see fit, in accord with the same premise; a date-night can be with yourself too!).

    Just remember the most important take-away though:

    Don’t accidentally put yourself in your own control group!

    In other words, it’s critically important that for the duration of the exercise, you act and even think as though it is the appropriate date.

    If you instead spend your time thinking “wow, I miss the [decade that does it for you]”, you will dodge the benefits, and potentially even make yourself feel (and thus, potentially, if the inverse hypothesis holds true, become) older.

    This latter is not just our hypothesis by the way, there is an established potential for nocebo effect.

    For example, the following study looked at how instructions given in clinical tests can be worded in a way that make people feel differently about their age, and impact the results of the mental and/or physical tests then administered:

    ❝Our results seem to suggest how manipulations by instructions appeared to be more largely used and capable of producing more clear performance variations on cognitive, memory, and physical tasks.

    Age-related stereotypes showed potentially stronger effects when they are negative, implicit, and temporally closer to the test of performance. ❞

    ~ Dr. Francesco Pagnini

    Read more: Age-based stereotype threat: a scoping review of stereotype priming techniques and their effects on the aging process

    (and yes, that’s the same Dr. Francesco Pagnini whose name you saw atop the other study we cited above, with the 90 participants recreating the Counterclockwise study)

    Want to know more about [the hard science of] psychosomatic health?

    Check out Dr. Langer’s other book, which we reviewed recently:

    The Mindful Body: Thinking Our Way to Chronic Health – by Dr. Ellen Langer

    Enjoy!

    Share This Post

Related Posts

  • Deskbound – by Kelly Starrett and Glen Cordoza
  • What Most People Don’t Know About HIV

    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.

    What To Know About HIV This World AIDS Day

    Yesterday, we asked 10almonds readers to engage in a hypothetical thought experiment with us, and putting aside for a moment any reason you might feel the scenario wouldn’t apply for you, asked:

    ❝You have unprotected sex with someone who, afterwards, conversationally mentions their HIV+ status. Do you…❞

    …and got the above-depicted, below-described, set of responses. Of those who responded…

    • Just over 60% said “rush to hospital; maybe a treatment is available”
    • Just under 20% said “ask them what meds they’re taking (and perhaps whether they’d like a snack)”
    • Just over 10% said “despair; life is over”
    • Two people said “do the most rigorous washing down there you’ve ever done in your life”

    So, what does science say about it?

    First, a quick note on terms

    • HIV is the Human Immunodeficiency Virus. It does what it says on the tin; it gives humans immunodeficiency. Like many viruses that have become epidemic in humans, it started off in animals (called SIV, because there was no “H” involved yet), which were then eaten by humans, passing the virus to us when it one day mutated to allow that.
      • It’s technically two viruses, but that’s beyond the scope of today’s article; for our purposes they are the same. HIV-1 is more virulent and infectious than HIV-2, and is the kind more commonly found in most of the world.
    • AIDS is Acquired Immunodeficiency Syndrome, and again, is what it sounds like. When a person is infected with HIV, then without treatment, they will often develop AIDS.
      • Technically AIDS itself doesn’t kill people; it just renders people near-defenseless to opportunistic infections (and immune-related diseases such as cancer), since one no longer has a properly working immune system. Common causes of death in AIDS patients include cancer, influenza, pneumonia, and tuberculosis.

    People who contract HIV will usually develop AIDS if untreated. Untreated life expectancy is about 11 years.

    HIV/AIDS are only a problem for gay people: True or False?

    False, unequivocally. Anyone can get HIV and develop AIDS.

    The reason it’s more associated with gay men, aside from homophobia, is that since penetrative sex is more likely to pass it on, then if we go with the statistically most likely arrangements here:

    • If a man penetrates a woman and passes on HIV, that woman will probably not go on to penetrate someone else
    • If a man penetrates a man and passes on HIV, that man could go on to penetrate someone else—and so on
    • This means that without any difference in safety practices or promiscuity, it’s going to spread more between men on average, by simple mathematics.
    • This is why “men who have sex with men” is the generally-designated higher-risk category.

    There is medication to cure HIV/AIDS: True or False?

    False so far (though there have been individual case studies of gene treatments that may have cured people—time will tell).

    But! There are medications that can prevent HIV from being a life-threatening problem:

    • PrEP (Pre-Exposure Prophylaxis) is a medication that one can take in advance of potential exposure to HIV, to guard against it.
      • This is a common choice for people aren’t sure about their partners’ statuses, or people working in risky environments.
    • PEP (Post-Exposure Prophylaxis) is a medication that one can take after potential exposure to HIV, to “nip it in the bud”.
      • Those of you who were rushing to hospital in our poll, this is what you’re rushing there for.
    • ARVs (Anti-RetroVirals) are a class of medications (there are different options; we don’t have room to distinguish them) that reduce an HIV+ person’s viral load to undetectable levels.
      • Those of you who were asking what meds your partner was taking, these will be those meds. Also, most of them are to be taken in the morning with food, so that’s what the snack was for.

    If someone is HIV+, the risk of transmission in unprotected sex is high: True or False?

    True or False, with false being the far more likely. It depends on their medications, and this is why you were asking. If someone is on ARVs and their viral load is undetectable (as is usual once someone has been on ARVs for 6 months), they cannot transmit HIV to you.

    U=U is not a fancy new emoticon, it means “undetectable = untransmittable”, which is a mathematically true statement in the case of HIV viral loads.

    See: NIH | HIV Undetectable=Untransmittable (U=U)

    If you’re thinking “still sounds risky to me”, then consider this:

    You are safer having unprotected sex with someone who is HIV+ and on ARVs with an undetectable viral load, than you are with someone you are merely assuming is HIV- (perhaps you assume it because “surely this polite blushing young virgin of a straight man won’t give me cooties” etc)

    Note that even your monogamous partner of many decades could accidentally contract HIV due to blood contamination in a hospital or an accident at work etc, so it’s good practice to also get tested after things that involve getting stabbed with needles, cut in a risky environment, etc.

    If you’re concerned about potential stigma associated with HIV testing, you can get kits online:

    CDC | How do I find an HIV self-test?

    (these are usually fingerprick blood tests, and you can either see the results yourself at home immediately, or send it in for analysis, depending on the kit)

    If I get HIV, I will get AIDS and die: True or False?

    False, assuming you get treatment promptly and keep taking it. So those of you who were at “despair; life is over” can breathe a sigh of relief now.

    However, if you get HIV, it does currently mean you will have to take those meds every day for the rest of your (no reason it shouldn’t be long and happy) life.

    So, HIV is definitely still something to avoid, because it’s not great to have to take a life-saving medication every day. For a little insight as to what that might be like:

    HIV.gov | Taking HIV Medication Every Day: Tips & Challenges

    (as you’ll see there, there are also longer-lasting injections available instead of daily pulls, but those are much less widely available)

    Summary

    Some quick take-away notes-in-a-nutshell:

    • Getting HIV may have been a death sentence in the 1980s, but nowadays it’s been relegated to the level of “serious inconvenience”.
    • Happily, it is very preventable, with PrEP, PEP, and viral loads so low that they can’t transmit HIV, thanks to ARVs.
    • Washing will not help, by the way. Safe sex will, though!
      • As will celibacy and/or sexual exclusivity in seroconcordant relationships, e.g. you have the same (known! That means actually tested recently! Not just assumed!) HIV status as each other.
    • If you do get it, it is very manageable with ARVs, but prevention is better than treatment
    • There is no certain cure—yet. Some people (small number of case studies) may have been cured already with gene therapy, but we can’t know for sure yet.

    Want to know more? Check out:

    CDC | Let’s Stop HIV Together

    Take care!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Saunas: Health Benefits (& Caveats)

    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.

    The Heat Is On

    In Tuesday’s newsletter, we asked you your (health-related) opinion on saunas, and got the above-depicted, below-described, set of responses:

    • About 53% said it is “a healthful activity with many benefits”
    • About 25% said it is “best avoided; I feel like I’m dying in there”
    • About 12% said “it feels good and therefore can’t be all bad”

    So what does the science say?

    The heat of saunas carries a health risk: True or False?

    False, generally speaking, for any practical purposes. Of course, anything in life comes with a health risk, but statistically speaking, your shower at home is a lot more dangerous than a sauna (risk of slipping with no help at hand).

    It took a bit of effort to find a paper on the health risks of saunas, because all the papers on PubMed etc coming up for those keywords were initially papers with “reduces the risk of…”, i.e. ways in which the sauna is healthy.

    However, we did find one:

    ❝Contraindications to sauna bathing include unstable angina pectoris, recent myocardial infarction, and severe aortic stenosis.

    Sauna bathing is safe, however, for most people with coronary heart disease with stable angina pectoris or old myocardial infarction.

    Very few acute myocardial infarctions and sudden deaths occur in saunas, but alcohol consumption during sauna bathing increases the risk of hypotension, arrhythmia, and sudden death, and should be avoided. ❞

    ~ Dr. Matti Hannuksela & Dr. Samer Ellahham

    Source: Benefits and risks of sauna bathing

    So, very safe for most people, safe even for most people with heart disease, but there are exceptions so check with your own doctor of course.

    And drinking alcohol anywhere is bad for the health, but in a sauna it’s a truly terrible idea. As an aside, please don’t drink alcohol in the shower, either (risk of slipping with no help at hand, and this time, broken glass too).

    On the topic of it being safe for most people’s hearts, see also:

    Beneficial effects of sauna bathing for heart failure patients

    As an additional note, those who have a particular sensitivity to the heat, may (again please check with your own doctor, as your case may vary) actually benefit from moderate sauna use, to reduce the cardiovascular strain that your body experiences during heatwaves (remember, you can get out of a sauna more easily than you can get out of a heatwave, so for many people it’s a lot easier to do moderation and improve thermoregulatory responses):

    Passive heat therapy: a promising preventive measure for people at risk of adverse health outcomes during heat extremes

    Sauna usage can bring many health benefits: True or False?

    True! Again, at least for most people. As well as the above-discussed items, here’s one for mortality rates in healthy Finnish men:

    Sauna bathing and mortality risk: unraveling the interaction with systolic blood pressure in a cohort of Finnish men

    Not only that, also…

    ❝The Finnish saunas have the most consistent and robust evidence regarding health benefits and they have been shown to decrease the risk of health outcomes such as hypertension, cardiovascular disease, thromboembolism, dementia, and respiratory conditions; may improve the severity of musculoskeletal disorders, COVID-19, headache and flu, while also improving mental well-being, sleep, and longevity.

    Finnish saunas may also augment the beneficial effects of other protective lifestyle factors such as physical activity.

    The beneficial effects of passive heat therapies may be linked to their anti-inflammatory, cytoprotective and anti-oxidant properties and synergistic effects on neuroendocrine, circulatory, cardiovascular and immune function.

    Passive heat therapies, notably Finnish saunas, are emerging as potentially powerful and holistic strategies to promoting health and extending the healthspan in all populations. ❞

    ~ Dr. Jari Laukkanen & Dr. Setor Kunutsor

    Source: The multifaceted benefits of passive heat therapies for extending the healthspan: A comprehensive review with a focus on Finnish sauna

    (the repeated clarification of “Finnish sauna” is not a matter of fervent nationalism, by the way, but rather a matter of disambiguating it from Swedish sauna, which has some differences, most notably a lack of steam)

    That reminds us: in Scandinavia, it is usual to use a sauna naked, and in Finland in particular, it is a common social activity amongst friends, coworkers, etc. In the US, many people are not so comfortable with nudity, and indeed, many places that provide saunas, may require the wearing of swimwear. But…

    Just one problem: if you’re wearing swimwear because you’ve just been swimming in a pool, you now have chlorinated water soaked into your swimwear, which in the sauna, will become steam + chlorine gas. That’s not so good for your health (and is one reason, beyond tradition and simple normalization, for why swimwear is usually not permitted in Finnish saunas).

    Want to read more?

    You might like our previous main feature,

    Turning Up The Heat Against Diabetes & Alzheimer’s ← you guessed it, sauna may be beneficial against these too

    Take care!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • What’s behind rising heart attack rates in younger adults

    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.

    Deaths from heart attacks have been in decline for decades, thanks to improved diagnosis and treatments. But, among younger adults under 50 and those from communities that have been marginalized, the trend has reversed. 

    More young people have suffered heart attacks each year since the 2000s—and the reasons why aren’t always clear. 

    Here’s what you need to know about heart attack trends in younger adults.

    Heart attack deaths began declining in the 1980s

    Heart disease has been a leading cause of death in the United States for more than a century, but rates have declined for decades as diagnosis and treatments improved. In the 1950s, half of all Americans who had heart attacks died, compared to one in eight today. 

    A 2023 study found that heart attack deaths declined 4 percent a year between 1999 and 2020. 

    The downward trend plateaued in the 2000s as heart attacks in young adults rose

    In 2012, the decline in heart disease deaths in the U.S. began to slow. A 2018 study revealed that a growing number of younger adults were suffering heart attacks, with women more affected than men. Additionally, younger adults made up one-third of heart attack hospitalizations, with one in five heart attack patients being under 40.

    The following year, data showed that heart attack rates among adults under 40 had increased steadily since 2006. Even more troubling, young patients were just as likely to die from heart attacks as patients more than a decade older. 

    Why are more younger adults having heart attacks?

    Heart attacks have historically been viewed as a condition that primarily affects older adults. So, what has changed in recent decades that puts younger adults at higher risk? 

    Higher rates of obesity, diabetes, and high blood pressure

    Several leading risk factors for heart attacks are rising among younger adults.
    Between 2009 and 2020, diabetes and obesity rates increased in Americans ages 20 to 44. 

    During the same period, hypertension, or high blood pressure, rates did not improve in younger adults overall and worsened in young Hispanic people. Notably, young Black adults had hypertension rates nearly twice as high as the general population. 

    Hypertension significantly increases the risk of heart attack and cardiovascular death in young adults.

    Increased substance use

    Substance use of all kinds increases the risk of cardiovascular issues, including heart attacks. A recent study found that cardiovascular deaths associated with substance use increased by 4 percent annually between 1999 and 2019. 

    The rise in substance use-related deaths has accelerated since 2012 and was particularly pronounced among women, younger adults (25-39), American Indians and Alaska Natives, and those in rural areas.

    Alcohol was linked to 65 percent of the deaths, but stimulants (like methamphetamine) and cannabis were the substances associated with the greatest increase in cardiovascular deaths during the study period. 

    Poor mental health

    Depression and poor mental health have been linked to cardiovascular issues in young adults. A 2023 study of nearly 600,000 adults under 50 found that depression and self-reported poor mental health are a risk factor for heart disease, regardless of socioeconomic or other cardiovascular risk factors. 

    Adults under 50 years consistently report mental health conditions at around twice the rate of older adults. Additionally, U.S. depression rates have trended up and reached an all-time high in 2023, when 17.8 percent of adults reported having depression. 

    Depression rates are rising fastest among women, adults under 44, and Black and Hispanic populations. 

    COVID-19

    COVID-19 can cause real, lasting damage to the heart, increasing the risk of certain cardiovascular diseases for up to a year after infection. Vaccination reduces the risk of heart attack and other cardiovascular events caused by COVID-19 infection.

    The first year of the pandemic marked the largest single-year spike in heart-related deaths in five years, including a 14 percent increase in heart attacks. In the second year of the pandemic, heart attacks in young adults increased by 30 percent. 

    Heart attack prevention 

    Not every heart attack is preventable, but everyone can take steps to reduce their risks. The American Heart Association recommends managing health conditions that increase heart disease risk, including diabetes, obesity, and high blood pressure. 

    Lifestyle changes like improving diet, reducing substance use, and increasing physical activity can also help reduce heart attack risk. 

    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.

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: