Daily Activity Levels & The Measurable Difference They Make To Brain Health

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Most studies into the difference that exercise makes to cognitive decline are retrospective, i.e. they look backwards in time, asking participants what their exercise habits were like in the past [so many] years, and tallying that against their cognitive health in the present.

Some studies are interventional, and those are most often 3, 6, or 12 months, depending on funding. In those cases, they make a hypothesis (e.g. this intervention will boost this measure of brain health) and then test it.

However, humans aren’t generally great at making short term decisions for long term gains. In other words: if it’s rainy out, or you’re a little pushed for time, you’re likely to take the car over walking regardless of what data point this adjusts in an overarching pattern that will affect your brain’s amyloid-β clean-up rates in 5–20 years time.

Nine days

The study we’re going to look at today was a 9-day observational study, using smartphone-based tracking with check-ins every 3½ hours, with participants reporting their physical activity as light, moderate, or intense (these terms were defined and exemplified, so that everyone involved was singing from the same songsheet in terms of what activities constitute what intensity).

The sample size was reasonable (n=204) and was generally heterogenous sample (i.e. varied in terms of sex, racial background, and fitness level) of New Yorkers aged 40–65.

So, the input variable was activity level, and the output variable was cognitive fitness.

As to how they measured the output, two brain games assessed:

  1. cognitive processing speed, and
  2. working memory (a proxy for executive function).

What they found:

  1. participants active within the last 3½ hours had faster processing speed, equivalent to being four years younger
  2. response times in the working memory (for: executive function) task reflected similar processing speed improvements, for participants active in the last 3½ hours

And, which is important to note,

❝This benefit was observed regardless of whether the activities they reported were higher intensity (e.g., running/jogging) or lower intensity (e.g., walking, chores).❞

~ Dr. Lizbeth Benson et al.

Source: Cognitive Health Benefits of Everyday Physical Activity in a Diverse Sample of Middle-Aged Adults

Practical take-away:

Move more often! At least every couple of hours (when not sleeping)!

The benefits will benefit you in the now, as well as down the line.

See also:

The Doctor Who Wants Us To Exercise Less, & Move More

and, for that matter:

Do You Love To Go To The Gym? No? Enjoy These “No-Exercise Exercises”!

Take care!

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  • How Internal Organs Can Be Affected By Spicy Foods (Doctor Explains)

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    Capsaicin has an array of health-giving properties in moderation, but consumed in immoderation and/or without building up tolerance first, can cause problems—serious health issues such as heart attacks, brain spasms, torn esophagus, and even death can occur.

    Heating up

    Capsaicin, the compound that gives peppers their “heat”, is a chemical irritant and neurotoxin that activates pain receptors (TRPV1) tricking the brain into sensing heat, leading to a burning sensation, sweating, and flushing. The pain signal can also trigger the fight-or-flight response, causing a surge of adrenaline. Endorphins are eventually released, creating a pain-relief effect similar to a runner’s high, and ultimately it reduces systemic inflammation, boosts the metabolism, and increases healthy longevity.

    However, in cases of extreme consumption and/or lack of preparation, woe can befall, for example:

    • A man ruptured his esophagus after vomiting from eating a ghost pepper.
    • A participant experienced severe brain blood vessel constriction (reversible cerebral vasoconstriction syndrome) after eating a Carolina reaper.
    • A 25-year-old suffered permanent heart damage from cayenne pepper pills due to restricted blood flow.
    • A teenager died after the “one chip challenge,” although the cause of death was undetermined.

    So, what does moderation and preparation look like?

    Moderation can be different to different people, since genetics do play a part—some people have more TRPV1 receptors than other people. However, for all people (unless in case of having an allergy or similar), acclimatization is important, and a much bigger factor than genetics. 

    Writer’s anecdote: on the other hand, when my son was a toddler I once left the room and came back to find him cheerfully drinking hot sauce straight from the bottle, so it can be suspected that genetics are definitely relevant too, as while I did season his food and he did already enjoy curries and such, he didn’t exactly have a background of entering chili-eating competitions.

    Still, regardless of genes (unless you actually have a medical condition that disallows this), a person who regularly eats spicy food will develop an increasing tolerance for spicy food, and will get to enjoy the benefits without the risks, provided they don’t suddenly jump way past their point of tolerance.

    On which note, in this video you can also see what happens when Dr. Deshauer goes from biting a jalapeño (relatively low on the Scoville heat scale) to biting a Scotch bonnet pepper (about 10x higher on the Scoville heat scale):

    Click Here If The Embedded Video Doesn’t Load Automatically!

    Want to learn more?

    You might also like to read:

    Capsaicin For Weight Loss And Against Inflammation

    Take care!

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  • Caffeine Blues – by Stephen Cherniske

    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.

    Caffeine use is an interesting and often-underexamined factor in health. Beyond the most superficial of sleep hygiene advice (à la “if you aren’t sleeping well, consider skipping your triple espresso martini at bedtime”), it’s often considered a “everybody has this” drug.

    In this book, Cherniske explores a lot of the lesser-known effects of caffeine, and the book certainly is a litany against caffeine dependence, ultimately arguing strongly against caffeine use itself. The goal is certainly to persuade the reader to desist in caffeine use, and while the book’s selling point is “learn about caffeine” not “how to quit caffeine”, a program for quitting caffeine is nevertheless included.

    You may notice the title and cover design are strongly reminiscent of “Sugar Blues”, which came decades before it, and that’s clearly not accidental. The style is similar—very sensationalist, and with a lot of strong claims. In this case, however, there is actually a more robust bibliography, albeit somewhat dated now as science has continued to progress since this book was published.

    Bottom line: in this reviewer’s opinion, the book overstates its case a little, and is prone to undue sensationalism, but there is a lot of genuinely very good information in here too, making it definitely worth reading.

    Click here to check out Caffeine Blues, and remedy yours!

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  • Managing Chronic Pain (Realistically!)

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    Realistic chronic pain management

    We’ve had a number of requests to do a main feature on managing chronic pain, so here it is!

    A quick (but important) note before we begin:

    Obviously, not all chronic pain is created equal. Furthermore, we know that you, dear reader with chronic pain, have been managing yours for however long you have, learning as you go. You also doubtlessly know your individual condition inside out.

    We also know that people with chronic health conditions in general are constantly beset by well-meaning unsolicited advice from friends and family, asking if you’ve heard about [thing you heard about 20 years ago] that will surely change your life and cure you overnight.

    It’s frustrating, and we’re going to try to avoid doing that here, while still offering the advice that was asked for. We ask you, therefore, to kindly overlook whatever you already knew, and if you already knew it all, well, we salute you and will not be surprised if that’s the case for at least some readers. Chronic pain’s a… Well, it’s a chronic pain.

    All that said, let’s dive in…

    How are you treating your body right now?

    Are you hydrated; have you eaten; are you standing/sitting/lying in a position that at least should be comfortable for you in principle?

    The first two things affect pain perception; the latter can throw a spanner in the works if something’s not quite right.

    Move your body (gently!)

    You know your abilities, so think about the range of motion that you have, especially in the parts of your body that hurt (if that’s “everywhere”, then, our sympathies, and we hope you find the same advice applies). Think about your specific muscles and joints as applicable, and what the range of motion is “supposed” to be for each. Exercise your range of motion as best you can (gently!) to the point of its limit(s) and/or pain.

    • If you take it past that limit, there is a good chance you will make it worse. You don’t want that.
    • If you don’t take it to the limit, there is a good chance your range of movement will deteriorate, and your “safe zone” (i.e., body positions that are relatively free from pain) will diminish. You definitely don’t want that, either.

    Again, moderation is key. Yes, annoying as the suggestion may be, such things as yoga etc can help, if done carefully and gently. You know your limits; work with those, get rest between, and do what you can.

    For most people this will at least help keep the pain from getting worse.

    Hot & Cold

    Both of these things could ease your pain… Or make it worse. There is an element of “try it and see”, but here’s a good general guide:

    Here’s How to Choose Between Using Ice or Heat for Pain

    Meditation… Or Distraction

    Meditating really does help a lot of people. In the case of pain, it can be counterintuitively helpful to focus for a while on the sensation of the pain… But in a calm, detached fashion. Without judgement.

    “Yes, I am experiencing pain. Yes, it feels like I’m being stabbed with hot knives. Yes, this is tortuous; wow, I feel miserable. This truly sucks.”

    …it doesn’t sound like a good experience, does it? And it’s not, but paying it attention this way can paradoxically help ease things. Pain is, after all, a messenger. And in the case of chronic pain, it’s in some ways a broken messenger, but what a messenger most needs is to be heard.

    The above approach a) is good b) may have a limit in how long you can sustain it at a time, though. So…

    The opposite is a can be a good (again, short-term) approach too. Call a friend, watch your favorite movie, play a video game if that’s your thing. It won’t cure anything, but it can give you a little respite.

    Massage

    Unless you already know this makes your pain worse, this is a good thing to try. It doesn’t have to be a fancy spa; if the nature of your pain and condition permits, you can do self-massage. If you have a partner or close friend who can commit to helping, it can be very worth them learning to give a good massage. There are often local courses available, and failing that, there is also YouTube.

    Here’s an example of a good video for myofascial release massage, which can ease a lot of common kinds of chronic pain:

    !

    Some quick final things to remember:

    • If you find something helps, then it helps, do that.
    • That goes for mobility aids and other disability aids too, even if it was designed for a different disability. If it helps, it helps. You’re not stealing anyone’s thunder (or resources) by using something that makes your life easier. We’re not in this life to suffer!
    • There is no such thing as “this pain is not too much”. The correct amount of pain is zero. Maybe your body won’t let you reach zero, but more than that is “too much” already.
    • You don’t have to be suffering off the scale to deserve relief from pain

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  • Stop Checking Your Likes – by Susie Moore

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    You might think this one’s advice is summed up sufficiently by the title, that there’s no need for a book! But…

    There’s a lot more to this than “stop comparing the worst out-takes of your life to someone else’s highlight reel”, and there’s a lot more to this than “just unplug”.

    Instead, Susie Moore discusses the serious underlying real emotional considerations of the need for approval (and even just acceptance) by our community, as well the fear of missing out.

    It’s not just about how social media is designed to hijack various parts of our brain, or how The Alogorithm™ is out to personally drag your soul through Hell for a few more clicks; it’s also about the human element that would exist even without that. Who remembers MySpace? No algorithm in those days, but oh the drama potential for those “top 8 friends” places. And if you think that kind of problem is just for young people 20 years ago, you have mercifully missed the drama that older generations can get into on Facebook.

    Along with the litany of evil, though, Moore also gives practical advice on how to overcome those things, how to “see the world through comedy-colored glasses”, how to ask “what’s missing, really?”, and how to make your social media experience work for you, rather than it merely using you as fuel. ← link is to our own related article!

    Bottom line: if social media sucks a lot of your time, there may be more to it than just “social media sucks in general”, and there are ways to meet your emotional needs without playing by corporations’ rules to do so.

    Click here to check out Stop Checking Your Likes, and breathe easy!

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  • Young Mind Young Body – by Sue Ziang

    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 is a very “healthy mind in a healthy body” book, consistent with the author’s status as a holistic health coach. Sometimes that produces a bit of a catch-22 regarding where to start, but for Ziang, the clear answer is to start with the mind, and specifically, one’s perception of one’s own age.

    She advocates for building a young mind in a young body, and yes, that’s mind-building much like body-building. This does not mean any kind of wilful self-delusion, but rather, choosing the things that we do get to choose along the way.

    The bridge between mind and body, for Ziang, is meditation—which is reasonable, as it’s very much mind-stuff and also very much neurological and has a very real-world impact on the body’s broader health, even simply by such mechanisms as changing breathing, heart rate, neurotransmitter levels, endocrine functions, and the like.

    When it comes to the more physical aspects of health, her dietary advice is completely in line with what we write here at 10almonds. Hydrate well, eat more plants, especially beans and greens and whole grains, get good fats in, enjoy spices, practice mindful eating, skip the refined carbohydrates, be mindful of bio-individuality (e.g. one’s own personal dietary quirks that stem from physiology; some of us react differently to this kind of food or that for genetic reasons, and that’s not something to be overlooked).

    In the category of exercise, she’s simply about moving more, which while not comprehensive, is not bad advice either.

    Bottom line: if you’re looking for an “in” to holistic health and wondering where to start, this book is a fine and very readable option.

    Click here to check out “Young Mind Young Body”, and transform yours!

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  • Guinness Is Good For You*

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    Guinness Is Good For You*

    *This is our myth-buster edition, so maybe best not take that at face value!

    To this day, writing the words “Guinness is” into Google will autocomplete to “Guinness is good for you”. The ad campaign proclaiming such launched about a hundred years ago, and was based on Guinness as it was when it was launched another hundred years before that.

    Needless to say, none of this was based on modern science.

    Is there any grain of truth?

    Perhaps its strongest health claim, in terms of what stands up to modern scrutiny, is that it does contain some B vitamins. Famously (as it was once given to pregnant women in Ireland on the strength of such) it contains folate (also known as Vitamin B9). How much?

    A 15oz glass of Guinness contains 12.8µg of folate, which is 3.2% of the RDA. In other words, you could get all the folate your body needs by drinking just 32 glasses of Guinness per day.

    With that in mind, you might want to get the non-alcoholic version!

    “I heard you could live on just Guinness and oranges, because it contains everything but vitamin C?”

    The real question is: how long could you live? Otherwise, a facetious answer here could be akin to the “fun fact” that you can drink lava… once.

    Guinness is missing many essential amino acids and fatty acids, several vitamins, and many minerals. Exactly what it’s missing may vary slightly from region to region, as while the broad recipe is the same, some processes add or remove some extra micronutrients.

    As to what you’d die of first, for obvious reasons there have been no studies done on this, but our money would be on liver failure.

    It would also wreak absolute havoc with your kidneys, but kidneys are tricky beasts—you can be down to 10% functionality and unaware that anything’s wrong yet. So we think liver failure would get you first.

    (Need that 0.0% alcohol Guinness link again? Here it is)

    Fun fact: Top contender in the category of “whole food” is actually seaweed (make sure you don’t get too much iodine, though)!

    Or, should we say, top natural contender. Because foods that have been designed by humans to contain everything we need and more for optimized health, such as Huel, do exactly what they say on the tin.

    And in case you’re curious…

    Read: what bare minimum nutrients do you really need, to survive?

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