The BAT-pause!

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When Cold Weather & The Menopause Battle It Out

You may know that (moderate, safe) exposure to the cold allows our body to convert our white and yellow fat into the much healthier brown fat—also called brown adipose tissue, or “BAT” to its friends.

If you didn’t already know that, then well, neither did scientists until about 15 years ago:

The Changed Metabolic World with Human Brown Adipose Tissue: Therapeutic Visions

You can read more about it here:

Cool Temperature Alters Human Fat and Metabolism

This is important, especially because the white fat that gets converted is the kind that makes up most visceral fat—the kind most associated with all-cause mortality:

Visceral Belly Fat & How To Lose It ← this is not the same as your subcutaneous fat, the kind that sits directly under your skin and keeps you warm; this is the fat that goes between your organs and of which we should only have a small amount!

The BAT-pause

It’s been known (since before the above discovery) that BAT production slows considerably as we get older. Not too shocking—after all, many metabolic functions slow as we get older, so why should fat regulation be any different?

But! Rodent studies found that this was tied less to age, but to ovarian function: rats who underwent ovariectomies suffered reduced BAT production, regardless of their age.

Naturally, it’s been difficult to recreate such studies in humans, because it’s difficult to find a large sample of young adults willing to have their ovaries whipped out (or even suppressed chemically) to see how badly their metabolism suffers as a result.

Nor can an observational study (for example, of people who incidentally have ovaries removed due to ovarian cancer) usefully be undertaken, because then the cancer itself and any additional cancer treatments would be confounding factors.

Perimenopausal study to the rescue!

A recent (published last month, at time of writing!) study looked at women around the age of menopause, but specifically in cohorts before and after, measuring BAT metabolism.

By dividing the participants into groups based on age and menopausal status, and dividing the post-menopausal group into “takes HRT” and “no HRT” groups, and dividing the pre-menopausal group into “normal ovarian function” and “ovarian production of estrogen suppressed to mimic slightly early menopause” groups (there’s a drug for that), and then having groups exposed to warm and cold temperatures, and measuring BAT metabolism in all cases, they were able to find…

It is about estrogen, not age!

You can read more about the study here:

“Good” fat metabolism changes tied to estrogen loss, not necessarily to aging, shows study

…and the study itself, here:

Brown adipose tissue metabolism in women is dependent on ovarian status

What does this mean for men?

This means nothing directly for (cis) men, sorry.

But to satisfy your likely curiosity: yes, testosterone does at least moderately suppress BAT metabolism—based on rodent studies, anyway, because again it’s difficult to find enough human volunteers willing to have their testicles removed for science (without there being other confounding variables in play, anyway):

Testosterone reduces metabolic brown fat activity in male mice

So, that’s bad per se, but there isn’t much to be done about it, since the rest of your (addressing our male readers here) metabolism runs on testosterone, as do many of your bodily functions, and you would suffer many unwanted effects without it.

However, as men do typically have notably less body fat in general than women (this is regulated by hormones), the effects of changes in BAT metabolism are rather less pronounced in men (per testosterone level changes) than in women (per estrogen level changes), because there’s less overall fat to convert.

In summary…

While menopausal HRT is not necessarily a silver bullet to all metabolic problems, its BAT-maintaining ability is certainly one more thing in its favor.

See also:

Dr. Jen Gunter | What You Should Have Been Told About The Menopause Beforehand

Take care!

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  • Should We Skip Shampoo?

    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.

    It’s Q&A Day at 10almonds!

    Have a question or a request? We love to hear from you!

    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 😎

    ❝What’s the science on “no poo”? Is it really better for hair? There are so many mixed reports out there.❞

    First, for any unfamiliar: this is not about constipation; rather, it is about skipping shampoo, and either:

    • Using an alternative cleaning agent, such as vinegar and/or sodium bicarbonate
    • Using nothing at all, just conditioner when wet and brushing when dry

    Let’s examine why the trend became a thing: the thinking went “shampoo does not exist in nature, and most of our body is more or less self-cleaning; shampoos remove oils from hair, and the body has to produce more sebum to compensate, resulting in a rapid cycle of dry and greasy hair”.

    Now let’s fact-check each of those:

    • shampoo does not exist in nature: true (except in the sense that everything that exists can be argued to exist in nature, since nature encompasses everything—but the point is that shampoo is a purely artificial human invention)
    • most of our body is more or less self-cleaning: true, but our hair is not, for the same reason our nails are not: they’re not really a living part of the overall organism that is our body, so much as a keratinous protrusion of neatly stacked and hardened dead cells from our body. Dead things are not self-cleaning.
    • shampoos remove oils from hair: true; that is what they were invented for and they do it well
    • the body has to produce more sebum to compensate, resulting in a rapid cycle of dry and greasy hair: false; or at least, there is no evidence for this.

    Our hair’s natural oils are great at protecting it, and also great at getting dirt stuck in it. For the former reason we want the oil there; for the latter reason, we don’t.

    So the trick becomes: how to remove the oil (and thus the dirt stuck in it) and then put clean oil back (but not too much, because we don’t want it greasy, just, shiny and not dry)?

    The popular answer is: shampoo to clean the hair, conditioner to put an appropriate amount of oil* back.

    *these days, mostly not actually oil, but rather silicon-based substitutes, that do the same job of protecting hair and keeping it shiny and not brittle, without attracting so much dirt. Remember also that silicon is inert and very body safe; its molecules are simply too large to be absorbed, which is why it gets used in hair products, some skin products, and lube.

    See also: Water-based Lubricant vs Silicon-based Lubricant – Which is Healthier?

    If you go “no poo”, then what will happen is either you dry your hair out much worse by using vinegar or (even worse) bicarbonate of soda, or you just have oil (and any dirt stuck in it) in your hair for the life of the hair. As in, each individual strand of hair has a lifespan, and when it falls out, the dirt will go with it. But until that day, it’s staying with you, oil and dirt and all.

    If you use a conditioner after using those “more natural” harsh cleaners* that aren’t shampoo, then you’ll undo a lot of the damage done, and you’ll probably be fine.

    *in fact, if you’re going to skip shampoo, then instead of vinegar or bicarbonate of soda, dish soap from your kitchen may actually do less damage, because at least it’s pH-balanced. However, please don’t use that either.

    If you’re going to err one way or the other with regard to pH though, erring on the side of slightly acidic is much better than slightly alkaline.

    More on pH: Journal of Trichology | The Shampoo pH can Affect the Hair: Myth or Reality?

    If you use nothing, then brushing a lot will mitigate some of the accumulation of dirt, but honestly, it’s never going to be clean until you clean it.

    Our recommendation

    When your hair seems dirty, and not before, wash it with a simple shampoo (most have far too many unnecessary ingredients; it just needs a simple detergent, and the rest is basically for marketing; to make it foam completely unnecessarily but people like foam, to make it thicker so it feels more substantial, to make it smell nice, to make it a color that gives us confidence it has ingredients in it, etc).

    Then, after rinsing, enjoy a nice conditioner. Again there are usually a lot of unnecessary ingredients, but an argument can be made this time for some being more relevant as unlike with the shampoo, many ingredients are going to remain on your hair after rinsing.

    Between washes, if you have long hair, consider putting some hair-friendly oil (such as argan oil or coconut oil) on the tips daily, to avoid split ends.

    And if you have tight curly hair, then this advice goes double for you, because it takes a lot longer for natural oils to get from your scalp to the ends of your hair. For those of us with straight hair, it pretty much zips straight on down there within a day or two; not so if you have beautiful 4C curls to take care of!

    For more on taking care of hair gently, check out:

    Gentler Hair Care Options, According To Science

    Take care!

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  • Hungry? How To Beat Cravings

    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 Science of Hunger, And How To Sate It

    This is Dr. David Ludwig. That’s not a typo; he’s a doctor both ways—MD and PhD.

    Henceforth we’ll just say “Dr. Ludwig”, though! He’s a professor in the Department of Nutrition at Harvard T.H. Chan School of Public Health, and director of the New Balance Foundation Obesity Prevention Center.

    His research focuses on the effects of diet on hormones, metabolism, and body weight, and he’s one of the foremost experts when it comes to carbohydrates, glycemic load, and obesity.

    Why are we putting on weight? What are we getting wrong?

    Contrary to popular belief, Dr. Ludwig says, weight gain is not caused by a lack of exercise. In fact, people tend to overestimate how many calories are burned by exercise.

    A spoonful of sugar may make the medicine go down, but it also contains 60 calories, and that’d take about 1,500 steps for the average person to burn off. Let’s put this another way:

    If you walk 10,000 steps per day, that will burn off 400 calories. Still think you can exercise away that ice cream sundae or plate of fries?

    Wait, this is interesting and all, but what does this have to do with hunger?

    Why we get hungry

    Two important things:

    • All that exercise makes us hungry, because the more we exercise, the more the body speeds up our metabolism accordingly.
    • Empty calories don’t just add weight themselves, they also make us hungrier

    What are empty calories, and why do they make us hungrier?

    Empty calories are calories that are relatively devoid of other nutrition. This especially means simple sugars (especially refined sugar), white flour and white flour products (quick-release starches), and processed seed oils (e.g. canola, sunflower, and friends).

    They zip straight into our bloodstream, and our body sends out an army of insulin to deal with the blood sugar spike. And… that backfires.

    Imagine a person whose house is a terrible mess, and they have a date coming over in half an hour.

    They’re going to zoom around tidying, but they’re going to stuff things out of sight as quickly and easily as possible, rather than, say, sit down and Marie Kondo the place.

    But superficially, they got the job done really quickly!

    Insulin does similarly when overwhelmed by a blood sugar spike like that.

    So, it stores everything as fat as quickly as possible, and whew, the pancreas needs a break now after all that exertion, and the blood is nice and free from blood sugars.

    Wait, the blood is what now?

    The body notices the low blood sugar levels, and it also knows you just stored fat so you must be preparing for starvation, and now the low blood sugar levels indicate starvation is upon us. Quick, we must find food if we want to survive! So it sends a hunger signal to make sure you don’t let the body starve.

    You make a quick snack, and the cycle repeats.

    Dr. Ludwig’s solution:

    First, we need to break out of that cycle, and that includes calming down our insulin response (and thus rebuilding our insulin sensitivity, as our bodies will have become desensitized, after the equivalent of an air-raid siren every 40 minutes or so).

    How to do that?

    First, cut out the really bad things that we mentioned above.

    Next: cut healthy carbs too—we’re talking unprocessed grains here, legumes as well, and also starchy vegetables (root vegetables etc). Don’t worry, this will be just for a short while.

    The trick here is that we are resensitizing our bodies to insulin.

    Keep this up for even just a week, and then gradually reintroduce the healthier carbs. Unprocessed grains are better than root vegetables, as are legumes.

    You’re not going to reintroduce the sugars, white flour, canola oil, etc. You don’t have to be a puritan, and if you go to a restaurant you won’t undo all your work if you have a small portion of fries. But it’s not going to be a part of your general diet.

    Other tips from Dr. Ludwig:

    • Get plenty of high-quality protein—it’s good for you and suppresses your appetite
    • Shop for success—make sure you keep your kitchen stocked with healthy easy snack food
    • Nuts, cacao nibs, and healthy seeds will be your best friends and allies here
    • Make things easy—buy pre-chopped vegetables, for example, so when you’re hungry, you don’t have to wait longer (and work more) to eat something healthy
    • Do what you can to reduce stress, and also eat mindfully (that means paying attention to each mouthful, rather than wolfing something down while multitasking)

    If you’d like to know more about Dr. Ludwig and his work, you can check out his website for coaching, recipes, meal plans, his blog, and other resources!

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  • Lemon Balm For Stressful Times And More

    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.

    Balm For The Mind: In More Ways Than One!

    Lemon balm(Melissa officinalis) is quite unrelated to lemons, and is actually a closer relative to mint. It does have a lemony fragrance, though!

    You’ll find it in a lot of relaxing/sleepy preparations, so…

    What does the science say?

    Relaxation

    Lemon balm has indeed been found to be a potent anti-stress herb. Laboratories that need to test anything to do with stress generally create that stress in one of two main ways:

    • If it’s not humans: a forced swimming test that’s a lot like waterboarding
    • If it is humans: cognitive tests completed under time-pressure while multitasking

    Consequently, studies that have set out to examine lemon balm’s anti-stress potential in humans, have often ended up also highlighting its potential as a cognitive enhancer, like this one in which…

    ❝Both active lemon balm treatments were generally associated with improvements in mood and/or cognitive performance❞

    ~ Dr. Anastasia Ossoukhova et al.

    Read in full: Anti-Stress Effects of Lemon Balm-Containing Foods

    And this one, which found…

    ❝The results showed that the 600-mg dose of Melissa ameliorated the negative mood effects of the DISS, with significantly increased self-ratings of calmness and reduced self-ratings of alertness.

    In addition, a significant increase in the speed of mathematical processing, with no reduction in accuracy, was observed after ingestion of the 300-mg dose.❞

    ~ Dr. Wendy Little et al.

    The appropriately named “DISS” is the Defined Intensity Stress Simulation we talked about.

    Read more: Attenuation of laboratory-induced stress in humans after acute administration of Melissa officinalis (Lemon Balm)

    Sleep

    There’s a lot less research for lemon balm’s properties in this regard than for stress/anxiety, and it’s probably because sleep studies are much more expensive than stress studies.

    It’s not for a lack of popular academic interest—for example, typing “Melissa officinalis” into PubMed (the vast library of studies we often cite from) autosuggests “Melissa officinalis sleep”. But alas, autosuggestions do not Randomized Controlled Trials make.

    There are some, but they’re often small, old, and combined with other things, like this one:

    A combination of valerian and lemon balm is effective in the treatment of restlessness and dyssomnia in children

    This is interesting, because generally speaking there is little to no evidence that valerian actually helps sleep, so if this mixture worked, we might reasonably assume it was because of the lemon balm—but there’s an outside chance it could be that it only works in the presence of valerian (unlikely, but in science we must consider all possibilities).

    Beyond that, we just have meta-reviews to work from, like this one that noted:

    ❝M. officinalis contains several phytochemicals such as phenolic acids, flavonoids, terpenoids, and many others at the basis of its pharmacological activities. Indeed, the plant can have antioxidant, anti-inflammatory, antispasmodic, antimicrobial, neuroprotective, nephroprotective, antinociceptive effects.

    Given its consolidated use, M. officinalis has also been experimented with clinical settings, demonstrating interesting properties against different human diseases, such as anxiety, sleeping difficulties, palpitation, hypertension, depression, dementia, infantile colic, bruxism, metabolic problems, Alzheimer’s disease, and sexual disorders. ❞

    ~ Dr. Cristina Quispe et al.

    You see why we don’t try to cover everything here, by the way!

    But if you want to read this one in full, you can, at:

    An Updated Review on The Properties of Melissa officinalis L.: Not Exclusively Anti-anxiety

    Is it safe?

    Lemon balm is generally recognized as safe, and/but please check with your doctor/pharmacist in case of any contraindications due to medicines you may be on or conditions you may have.

    Want to try some?

    We don’t sell it, but here for your convenience is an example product on Amazon

    Want to know your other options?

    You might like our previous main features:

    What Teas To Drink Before Bed (By Science!)

    and

    Safe Effective Sleep Aids For Seniors

    Enjoy!

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  • Why You Probably Need More Sleep

    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.

    Sleep: yes, you really do still need it!

    We asked you how much sleep you usually get, and got the above-pictured, below-described set of responses:

    • A little of a third of all respondents selected the option “< 7 hours”
    • However, because respondents also selected options such as < 6 hours, < 5 hours, and < 4 hours, so if we include those in the tally, the actual total percentage of respondents who reported getting under 7 hours, is actually more like 62%, or just under two thirds of all respondents.
    • Nine respondents, which was about 5% of the total, reported usually getting under 4 hours sleep
    • A little over quarter of respondents reported usually getting between 7 and 8 hours sleep
    • Fifteen respondents, which was a little under 10% of the total, reported usually getting between 8 and 9 hours of sleep
    • Three respondents, which was a little under 2% of the total, reported getting over 9 hours of sleep
    • In terms of the classic “you should get 7–9 hours sleep”, approximately a third of respondents reported getting this amount.

    You need to get 7–9 hours sleep: True or False?

    True! Unless you have a (rare!) mutated ADRB1 gene, which reduces that.

    The way to know whether you have this, without genomic testing to know for sure, is: do you regularly get under 6.5 hours sleep, and yet continue to go through life bright-eyed and bushy-tailed? If so, you probably have that gene. If you experience daytime fatigue, brain fog, and restlessness, you probably don’t.

    About that mutated ADRB1 gene:

    NIH | Gene identified in people who need little sleep

    Quality of sleep matters as much as duration, and a lot of studies use the “RU-Sated” framework, which assesses six key dimensions of sleep that have been consistently associated with better health outcomes. These are:

    • regularity / usual hours
    • satisfaction with sleep
    • alertness during waking hours
    • timing of sleep
    • efficiency of sleep
    • duration of sleep

    But, that doesn’t mean that you can skimp on the last one if the others are in order. In fact, getting a good 7 hours sleep can reduce your risk of getting a cold by three or four times (compared with six or fewer hours):

    Behaviorally Assessed Sleep and Susceptibility to the Common Cold

    ^This study was about the common cold, but you may be aware there are more serious respiratory viruses freely available, and you don’t want those, either.

    Napping is good for the health: True or False?

    True or False, depending on how you’re doing it!

    If you’re trying to do it to sleep less in total (per polyphasic sleep scheduling), then no, this will not work in any sustainable fashion and will be ruinous to the health. We did a Mythbusting Friday special on specifically this, a while back:

    Could Just Two Hours Sleep Per Day Be Enough?

    PS: you might remember Betteridge’s Law of Headlines

    If you’re doing it as a energy-boosting supplement to a reasonable night’s sleep, napping can indeed be beneficial to the health, and can give benefits such as:

    However! There is still a right and a wrong way to go about it, and we wrote about this previously, for a Saturday Life Hacks edition of 10almonds:

    How To Nap Like A Pro (No More “Sleep Hangovers”!)

    As we get older, we need less sleep: True or False

    False, with one small caveat.

    The small caveat: children and adolescents need 9–12 hours sleep because, uncredited as it goes, they are doing some seriously impressive bodybuilding, and that is exhausting to the body. So, an adult (with a normal lifestyle, who is not a bodybuilder) will tend to need less sleep than a child/adolescent.

    But, the statement “As we get older, we need less sleep” is generally taken to mean “People in the 65+ age bracket need less sleep than younger adults”, and this popular myth is based on anecdotal observational evidence: older people tend to sleep less (as our survey above shows! For any who aren’t aware, our readership is heavily weighted towards the 60+ demographic), and still continue functioning, after all.

    Just because we survive something with a degree of resilience doesn’t mean it’s good for us.

    In fact, there can be serious health risks from not getting enough sleep in later years, for example:

    Sleep deficiency promotes Alzheimer’s disease development and progression

    Want to get better sleep?

    What gets measured, gets done. Sleep tracking apps can be a really good tool for getting one’s sleep on a healthier track. We compared and contrasted some popular ones:

    The Head-To-Head Of Google and Apple’s Top Apps For Getting Your Head Down

    Take good care of yourself!

    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 Teas To Drink Before Bed (By Science!)

    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.

    Which Sleepy Tea?

    Herbal “tea” preparations (henceforth we will write it without the quotation marks, although these are not true teas) are popular for winding down at the end of a long day ready for a relaxing sleep.

    Today we’ll look at the science for them! We’ll be brief for each, because we’ve selected five and have only so much room, but here goes:

    Camomile

    Simply put, it works and has plenty of good science for it. Here’s just one example:

    ❝Noteworthy, our meta-analysis showed a significant improvement in sleep quality after chamomile administration❞

    ~ Dr. Hieu et al.

    Therapeutic efficacy and safety of chamomile for state anxiety, generalized anxiety disorder, insomnia, and sleep quality: A systematic review and meta-analysis of randomized trials and quasi-randomized trials

    Also this writer’s favourite relaxation drink!

    (example on Amazon if you want some)

    Lavender

    We didn’t find robust science for its popularly-claimed sedative properties, but it does appear to be anxiolytic, and anxiety gets in the way of sleep, so while lavender may not be a sedative, it may calm a racing mind all the same, thus facilitating better sleep:

    The effect of lavender herbal tea on the anxiety and depression of the elderly: A randomized clinical trial

    (example on Amazon if you want some)

    Magnolia

    Animal study for the mechanism:

    Magnolol, a major bioactive constituent of the bark of Magnolia officinalis, induces sleep via the benzodiazepine site of GABA(A) receptor in mice

    Human study for “it is observed to help humans sleep better”:

    A randomized controlled pilot study of the effectiveness of magnolia tea on alleviating depression in postnatal women

    As you can see from the title, its sedative properties weren’t the point of the study, but if you click through to read it, you can see that they found (and recorded) this benefit anyway

    (example on Amazon if you want some)

    Passionflower

    There’s not a lot of evidence for this one, but there is some. Here’s a small study (n=41) that found:

    ❝Of six sleep-diary measures analysed, sleep quality showed a significantly better rating for passionflower compared with placebo (t(40) = 2.70, p < 0.01). These initial findings suggest that the consumption of a low dose of Passiflora incarnata, in the form of tea, yields short-term subjective sleep benefits for healthy adults with mild fluctuations in sleep quality.❞

    ~ Dr. Ngan & Dr. Conduit

    A double-blind, placebo-controlled investigation of the effects of Passiflora incarnata (passionflower) herbal tea on subjective sleep quality

    So, that’s not exactly a huge body of evidence, but it is promising.

    (example on Amazon if you want some)

    Valerian

    We’ll be honest, the science for this one is sloppy. It’s very rare to find Valerian tested by itself (or sold by itself; we had to dig a bit to find one for the Amazon link below), and that skews the results of science and renders any conclusions questionable.

    And the studies that were done? Dubious methods, and inconclusive results:

    Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-Analysis

    Nevertheless, if you want to try it for yourself, you can do a case study (i.e., n=1 sample) if not a randomized controlled trial, and let us know how it goes 🙂

    (example on Amazon if you want some)

    Summary

    • Valerian we really don’t have the science to say anything about it
    • Passionflower has some nascent science for it, but not much
    • Lavender is probably not soporific, but it is anxiolytic
    • Magnolia almost certainly helps, but isn’t nearly so well-backed as…
    • Camomile comes out on top, easily—by both sheer weight of evidence, and by clear conclusive uncontroversial results.

    Enjoy!

    Don’t Forget…

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    Learn to Age Gracefully

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

  • How (And Why) To Train Your Pre-Frontal Cortex

    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.

    Dr. Chapman’s Keys For Mental Focus

    This is Dr. Sandra Chapman; she’s a cognitive neuroscientist, on a mission to, in her words, further our understanding of:

    • what makes the brain stronger, faster and last longer
    • what enhances human cognitive capacity, and
    • what enhances the underlying brain systems across the lifespan.

    To this end, she’s also the founder and Chief Director of the Center For Brain Health, where she has worked on her mission for the past 25 years (clocking up hundreds of peer-reviewed publications to her name), as well as being a professor of Behavioral and Brain Sciences at UT Dallas.

    What does she want us to know?

    Get your brain into gear

    When it comes to your brainpower, it is “use it or lose it”, but it is also perfectly possible to use it and lose it.

    Why?

    Very often, what we are using our brains for is high-strain, low-yield stuff, such as multitasking, overthinking, or overthinking while multitasking. And to make it worse, we often do it without sufficient rest.

    This is the equivalent of owning a Ferrari but trying to drive it in second and third gear at once by switching between the two as rapidly as possible. And doing that for 18 hours each day.

    Suffice it to say, you’ll be going nowhere quickly.

    An alternative “use” of brainpower is low-strain, low-yield stuff, such as having to pay close attention to a boring conversation. It’s enough to stop your mind from doing anything else, but not enough to actually stimulate you.

    This is the equivalent of owning a Ferrari but keeping it idling. The wear and tear is minimal this time, but you’re not actually going anywhere either.

    Better, of course, are the other two quadrants:

    • low-strain, high-yield: consistently using our brain in relatively non-taxing ways that encourage its development
    • high-strain, high-yield: here the Ferrari metaphor definitely fails, because unlike cars, our bodies (including our brains) are machines that benefit from judicious regular progressive overloading (but just by a bit, and with adequate recovery time between overloads).

    See also: 12 Weeks To Measurably Boost Your Brain

    How to do the “low-strain, low-yield” part

    When it comes to “what’s the most important part of the brain to help in the face of cognitive decline?” the usual answer is either to focus on memory (hippocampi) or language (various parts, but for example Wernicke’s area and Broca’s area), since people most fear losing memory, and language is very important both socially and practically.

    Those are indeed critical, and we at 10almonds stand by them, but Dr. Chapman (herself having originally trained as speech and language pathologist!) makes a strong case for adding a third brain part to the list.

    Specifically, she advocates for strengthening the pre-frontal cortex, which is responsible for inhibition, task-switching, working memory, and cognitive flexibility. If that seems like a lot, do remember it’s a whole cortex and not one of the assorted important-but-small brain bits we mentioned above.

    How? She has developed training programs for this, based on what she calls Strategic Memory Advanced Reasoning Tactics (SMART), to support support attention, planning, judgment and emotional management.

    You can read more about those programs here:

    Center For Brain Health | Our Programs

    Participation in those is mostly not free, however, if you join their…

    Center For Brain Health | BrainHealth Project

    …then they will periodically invite you to join pilot programs, research programs, and the like, which will either be free or they-pay-you affairs—because this is how science is done, and you can read about yourself (anonymized, of course) later in peer-reviewed papers of the kind we often cite here.

    If you’re not interested in any of that though, we will say that according to Dr. Chapman, the keys are:

    Inhibition: be conscious of this function of your brain, and develop it. This is the function of your brain that stops you from making mistakes—or put differently: stops you from saying/doing something stupid.

    Switching: do this consciously; per “I am now doing this task, now I am switching to this other task”, rather than doing the gear-grinding thing we discussed earlier

    Working memory: this is effectively your brain’s RAM. Unlike the RAM of a computer (can be enhanced by adding another chip or replacing with a bigger chip), our brain’s RAM can be increased by frequent use, and especially by judicious use of progressive overloading (with rests between!) which we’ll discuss in the high-strain, high-yield section.

    Flexibility: this is about creative problem-solving, openness to new ideas, and curiosity

    See also: Curiosity Kills The Neurodegeneration

    How to do the “high-strain, high-yield” part

    Delighting this chess-playing writer, Dr. Chapman recommends chess. Although, similar games such as go (a Chinese game that looks simpler than chess but actually requires more calculation) work equally well too.

    Why?

    Games like chess and go cause structural changes that are particularly helpful, in terms of engaging in such foundational tasks as learning, abstract reasoning, problem-solving and self-control:

    Chess Practice as a Protective Factor in Dementia

    Basically, it checks (so to speak) a lot of boxes, especially for the pre-frontal cortex. Some notes:

    • Focusing on the game is required for brain improvement; simply pushing wood casually will not do it. Ideally, calculating several moves ahead will allow for strong working memory use (because to calculate several moves ahead, one will have to hold increasingly many possible positions in the mind while doing so).
    • The speed of play must be sufficiently slow as to allow not only for thinking, but also for what in chess is called “blunder-checking”, in other words, having decided on one’s move, pausing to consider whether it is a mistake, and actively trying to find evidence that it is. This is the crucial “inhibition habit”, and when one does it reflexively, one will make fewer mistakes. Tying this to dementia, see for example how one of the common symptoms of dementia is falling for scams that one wouldn’t have previously. How did cognitive decline make someone naïve? It didn’t, per se; it just took away their ability to, having decided what to do, pause to consider whether it was a mistake, and actively trying to find evidence that it is.
    • That “conscious switching” that we talked about, rather than multitasking? In chess, there is a difference between strategy and tactics. Don’t worry about what that difference is for now (learn it if you want to take up chess), but know that strong players will only strategize while it is their opponent’s turn, and only calculate (tactics) while it is their own turn. It’s very tempting to flit constantly between one and the other, but chess requires players to have the mental discipline be able to focus on one task or the other and stick with that task until it’s the appointed time to switch.

    If you feel like taking up chess, this site (and related app, if you want it) is free (it’s been funded by voluntary donations for a long time now) and good and even comes with free tuition and training tools: LiChess.org

    Here’s another site that this writer (hi, it’s me) personally uses—it has great features too, but many are paywalled (I’m mostly there just because I’ve been there nearly since its inception, so I’m baked into the community now): Chess.com

    Want to know more?

    You might like this book by Dr. Chapman, which we haven’t reviewed yet but it did inform large parts of today’s article:

    Make Your Brain Smarter: Increase Your Brain’s Creativity, Energy, and Focus – by Dr. Sandra Chapman

    Enjoy!

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