Mythbusting The Mask Debate

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Mythbusting The Mask Debate

We asked you for your mask policy this respiratory virus season, and got the above-depicted, below-described, set of responses:

  • A little under half of you said you will be masking when practical in indoor public places
  • A little over a fifth of you said you will mask only if you have respiratory virus symptoms
  • A little under a fifth of you said that you will not mask, because you don’t think it helps
  • A much smaller minority of you (7%) said you will go with whatever people around you are doing
  • An equally small minority of you said that you will not mask, because you’re not concerned about infections

So, what does the science say?

Wearing a mask reduces the transmission of respiratory viruses: True or False?

True…with limitations. The limitations include:

  • The type of mask
    • A homemade polyester single-sheet is not the same as an N95 respirator, for instance
  • How well it is fitted
    • It needs to be a physical barrier, so a loose-fitting “going through the motions” fit won’t help
  • The condition of the mask
    • And if applicable, the replaceable filter in the mask
  • What exactly it has to stop
    • What kind of virus, what kind of viral load, what kind of environment, is someone coughing/sneezing, etc

More details on these things can be found in the link at the end of today’s main feature, as it’s more than we could fit here!

Note: We’re talking about respiratory viruses in general in this main feature, but most extant up-to-date research is on COVID, so that’s going to appear quite a lot. Remember though, even COVID is not one beast, but many different variants, each with their own properties.

Nevertheless, the scientific consensus is “it does help, but is not a magical amulet”:

Wearing a mask is actually unhygienic: True or False?

False, assuming your mask is clean when you put it on.

This (the fear of breathing more of one’s own germs in a cyclic fashion) was a point raised by some of those who expressed mask-unfavorable views in response to our poll.

There have been studies testing this, and they mostly say the same thing, “if it’s clean when you put it on, great, if not, then well yes, that can be a problem”:

❝A longer mask usage significantly increased the fungal colony numbers but not the bacterial colony numbers.

Although most identified microbes were non-pathogenic in humans; Staphylococcus epidermidis, Staphylococcus aureus, and Cladosporium, we found several pathogenic microbes; Bacillus cereus, Staphylococcus saprophyticus, Aspergillus, and Microsporum.

We also found no associations of mask-attached microbes with the transportation methods or gargling.

We propose that immunocompromised people should avoid repeated use of masks to prevent microbial infection.❞

Source: Bacterial and fungal isolation from face masks under the COVID-19 pandemic

Wearing a mask can mean we don’t get enough oxygen: True or False?

False, for any masks made-for-purpose (i.e., are by default “breathable”), under normal conditions:

However, wearing a mask while engaging in strenuous best-effort cardiovascular exercise, will reduce VO₂max. To be clear, you will still have more than enough oxygen to function; it’s not considered a health hazard. However, it will reduce peak athletic performance:

Effects of wearing a cloth face mask on performance, physiological and perceptual responses during a graded treadmill running exercise test

…so if you are worrying about whether the mask will impede you breathing, ask yourself: am I engaging in an activity that requires my peak athletic performance?

Also: don’t let it get soaked with water, because…

Writer’s anecdote as an additional caveat: in the earliest days of the COVID pandemic, I had a simple cloth mask on, the one-piece polyester kind that we later learned quite useless. The fit wasn’t perfect either, but one day I was caught in heavy rain (I had left it on while going from one store to another while shopping), and suddenly, it fitted perfectly, as being soaked through caused it to cling beautifully to my face.

However, I was now effectively being waterboarded. I will say, it was not pleasant, but also I did not die. I did buy a new mask in the next store, though.

tl;dr = an exception to “no it won’t impede your breathing” is that a mask may indeed impede your breathing if it is made of cloth and literally soaked with water; that is how waterboarding works!

Want up-to-date information?

Most of the studies we cited today were from 2022 or 2023, but you can get up-to-date information and guidance from the World Health Organization, who really do not have any agenda besides actual world health, here:

Coronavirus disease (COVID-19): Masks | Frequently Asked Questions

At the time of writing this newsletter, the above information was last updated yesterday.

Take care!

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  • Brain Wash – by Dr. David Perlmutter, Dr. Austin Perlmutter, and Kristen Loberg

    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.

    You may be familiar with the lead author of this book, Dr. David Perlmutter, as a big name in the world of preventative healthcare. A lot of his work has focused specifically on carbohydrate metabolism, and he is as associated with grains and he is with brains. This book focuses on the latter.

    Dr. Perlmutter et al. take a methodical look at all that is ailing our brains in this modern world, and systematically lay out a plan for improving each aspect.

    The advice is far from just dietary, though the chapter on diet takes a clear stance:

    ❝The food you eat and the beverages you drink change your emotions, your thoughts, and the way you perceive the world❞

    The style is explanatory, and the book can be read comfortably as a “sit down and read it cover to cover” book; it’s an enjoyable, informative, and useful read.

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  • Dietary Changes for Artery Health

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

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

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

    So, no question/request too big or small

    ❝How does your diet change clean out your arteries of the bad cholesterol?❞

    There’s good news and bad news here, and they can both be delivered with a one-word reply:

    Slowly.

    Or rather: what’s being cleaned out is mostly not the LDL (bad) cholesterol, but rather, the result of that.

    When our diet is bad for cardiovascular health, our arteries get fatty deposits on their walls. Cholesterol gets stuck here too, but that’s not the main physical problem.

    Our body’s natural defenses come into action and try to clean it up, but they (for example macrophages, a kind of white blood cell that consumes invaders and then dies, before being recycled by the next part of the system) often get stuck and become part of the buildup (called atheroma), which can lead to atherosclerosis and (if calcium levels are high) hardening of the arteries, which is the worst end of this.

    This can then require medical attention, precisely because the body can’t remove it very well—especially if you are still maintaining a heart-unhealthy diet, thus continuing to add to the mess.

    However, if it is not too bad yet, yes, a dietary change alone will reverse this process. Without new material being added to the arterial walls, the body’s continual process of rejuvenation will eventually fix it, given time (free from things making it worse) and resources.

    In fact, your arteries can be one of the quickest places for your body to make something better or worse, because the blood is the means by which the body moves most things (good or bad) around the body.

    All the more reason to take extra care of it, since everything else depends on it!

    You might also like our previous main feature:

    All Things Heart Health

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  • Trout vs Haddock – Which is Healthier?

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    Our Verdict

    When comparing trout to haddock, we picked the trout.

    Why?

    It wasn’t close.

    In terms of macros, trout has more protein and more fat, although the fat is mostly healthy (some saturated though, and trout does have more cholesterol). This category could be a win for either, depending on your priorities. But…

    When it comes to vitamins, trout has a lot more of vitamins A, B1, B2, B3, B5, B6, B12, C, D, and E, while haddock is not higher in any vitamins.

    In the category of minerals, trout has more calcium, copper, iron, magnesium, potassium, and zinc, while haddock has slightly more selenium. Given that a 10oz portion of trout already contains 153% of the RDA of selenium, however, the same size portion of haddock having 173% of the RDA isn’t really a plus for haddock (especially as selenium can cause problems if we get too much). Oh, and haddock is also higher in sodium, but in industrialized countries, most people most of the time need less of that, not more.

    On balance, the overwhelming nutritional density of trout wins the day.

    Want to learn more?

    You might like to read:

    Farmed Fish vs Wild Caught: It Makes Quite A Difference!

    Take care!

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  • The Many Faces Of Cosmetic Surgery
  • Why We’re Called “10almonds”, And Other Questions

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    It’s Q&A Day at 10almonds!

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

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

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    So, no question/request too big or small

    ❝Avid coffee drinker so very interested in the results Also question Is there something that you could take or eat that would prevent the caffeine from stimulating the kidneys? I tried to drink decaf from morning to night not a good result! Thanks❞

    That is a good question! The simple answer is “no” (but keep reading, because all is not lost)

    There’s no way (that we yet know of) to proof the kidneys against the stimulating effect of caffeine. This is especially relevant because part of caffeine’s stimulating effect is noradrenergic, and that “ren” in the middle there? It’s about the kidneys. This is just because the adrenal gland is situated next to them (actually, it’s pretty much sitting on top of them), hence the name, but it does mean that the kidneys are about the hardest thing in the body to have not affected by caffeine.

    However! The effects of caffeine in general can be softened a little with l-theanine (found in tea, or it can be taken as a supplement). It doesn’t stop it from working, but it makes the curve of the effect a little gentler, and so it can reduce some unwanted side effects.

    You can read more about l-theanine here:

    L-Theanine: What’s The Tea?

    ❝How to jump start a inactive metabolism and keep it going? THANKYOU❞

    The good news is, if you’re alive, your metabolism is active (it never stops!). So, it may just need perking up a little.

    As for keeping it going, well, that’s what we’re here for! We’re all in favor of healthy longevity.

    We’ll do a main feature soon on what we can do to influence our metabolism in either direction, but to give some quick notes here:

    • A lot of our metabolism is influenced by genes and is unalterable (without modifying our genes, anyway)
    • Metabolism isn’t just one thing—it’s many. And sometimes, parts of our metabolism can be much quicker or slower than others.
    • When people talk about wanting a “faster metabolism”, they’re usually referring to fat-burning, and that’s just a small part of the picture, but we understand that it’s a focal point for many.

    There really is enough material for a whole main feature on metabolic tweaks, though, so watch this space!

    ❝Why the name “10 Almonds?” Is this recommended by the Doctor? A daily dosage? And, if so, why? Thanks! Please answer me…I truly want to know!❞

    Almonds are very nutritionally dense, and for example 20g of almonds (so, about 20 almonds) would give a 100% daily dose of zinc, amongst other nutrients.

    We also do like to think that we give our readers an easily digestible dose of condensed “nutrition” in the form of health information.

    However! That’s not actually the reason at all. It’s a reference to a viral Facebook hoax! There was a post going around that claimed:

    ❝HEADACHE REMEDY. Eat 10–12 almonds, the equivalent of two aspirins, next time you have a headache❞ ← not true!

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  • Keep Cellulite At Bay

    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!

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    So, no question/request too big or small 😎

    ❝Does anything actually get rid of cellulite? Nothing seems to❞

    Let’s get the bad news over with in one go:

    Nothing (that the scientific world currently knows of) can get rid of cellulite permanently, nor completely guard against it proactively. Which, given that it affects up to 98% of women to some degree, and often shows up not long after puberty (though it can appear at any time and often increases later in life), any pre-emptive health regime would need to be started as a child in any case.

    As with many things that predominantly affect women, the world of medicine isn’t entirely sure what causes it, let alone how to effectively treat it.

    Obviously hormones are implicated, namely estrogen.

    Obviously adiposity is implicated, because one can’t have dimples in one’s fat if one doesn’t have enough fat to dimple.

    Other hypothesized contributory factors include genetics, poor diet, inactivity, unhealthy lifestyle (in ways not previously mentioned, e.g. use of alcohol, tobacco, etc), accumulated toxins, and pregnancy.

    Here’s an old paper (from 2004); today’s reviews say pretty much the same thing, but we love how succinctly (albeit, somewhat depressingly) this abstract states how little we know and how little we can do:

    Cellulite: a review of its physiology and treatment

    However, all is not lost!

    There are some things that can affect how much cellulite we get, and there are some things that can reduce it, and even some things that can get rid of it completely—albeit temporarily.

    First, a quick refresher on what it actually is, physiologically speaking: cellulite occurs when connective tissue bands pull the skin down in places, where fat tissue has been able to squeeze through. One of the reasons it is hypothesized women get this more than men is because our fat is not merely different in distribution and overall percentage, but also in how the fat cells stack up; we generally have have of a vertical stacking structure going on, while men generally have a more horizontal structure. This means that it can be easier for ours to get moved about differently, causing the connective tissue to pull on the skin unevenly in places.

    With that in mind…

    Prevention is, as we say, probably impossible if your body is running on estrogen. However, those contributory factors we mentioned above? Most of those are modifiable, including these things that it is hypothesized can reduce it:

    Diet: as it seems to be worsened by inflammation (what isn’t?), an anti-inflammatory diet is recommended.

    Exercise: there are three things here: 1) exercises to improve circulation and thus the body’s ability to sort things out by itself 2) HIIT exercise to reduce body fat percentage, if one has a high enough starting body fat percentage for that to be a healthy goal 3) mobility exercises, to ensure our connective tissues are the right amount of mobile.

    Creams and lotions

    These reduce the superficial appearance of cellulite, without actually treating the thing itself. Mostly they are caffeine-based, which when used topically increases blood flow and works as a local diuretic, reducing the water content of the fat cells, diminishing the appearance of the cellulite by making each fat cell physically smaller (while still containing the same amount of fat, and it’ll bounce back in size as soon as the body can restore osmotic balance).

    Medical procedures

    There are too many of these to discuss them all separately, but they all work on the principle of breaking up the tough bands of connective tissue to eliminate the dimpling of cellulite.

    The methods they use vary from ultrasound to cryolipolysis to lasers to “vacuum-assisted precise tissue release”, which involves a suction pump and a multipronged robotic assembly with needles to administer anaesthetic as it goes and small blades to cut the connective tissues under the skin:

    Tissue Stabilized–Guided Subcision for the Treatment of Cellulite

    That last one definitely sounds like the least fun, but it’s also the only one that doesn’t take months to maybe see results.

    Cellulite can and almost certainly will come back after all of these.

    Home remedies

    Aside from at-home versions of the above (not the robots with vacuum pumps and needles and microblades, hopefully, but for example homemade caffeine creams), and of course diet and exercise which can be considered “home remedies”, there are two more things worth mentioning:

    Dry brushing: using a body brush to, as the name suggests, simply brush one’s skin. The “dry” aspect here is simply that it’s not done in the bath or shower; it’s done while dry. It can improve local circulation of blood and lymph, allowing for better detoxification and redistribution of needed bodily resources.

    Here’s an example dry brushing body brush on Amazon; this writer has one and hates it, but I’ve also tried with other kinds of brush and hate them too, so it seems to be a me thing rather than a brush thing, and I have desisted in trying, now. Maybe you will like it better; many people do.

    Self-massage: or massage by someone else, if that’s an option for you and you prefer. In this case, it works by a different mechanism than dry brushing; this time it’s working by the same principle as the medical techniques described in the previous section; it’s physically breaking down the toughened bits of connective tissue.

    Here’s an example wooden massage roller on Amazon; this writer has one and loves it; it’s sooooooo good. I got it as a matter of general maintenance for my fascia, but it’s also very good if I get a muscular pain now and again. As for cellulite, I personally get just a little cellulite sometimes (in the backs of my thighs), and whenever I use this regularly, it goes away for at least a while.

    A quick note in closing

    Cellulite is normal for women and is not unhealthy. Much like gray hair for example, it’s something that can be increased by poor health, but the thing itself isn’t intrinsically unhealthy, and most of us get it to some degree at some point.

    Nevertheless, aesthetic factors can also have a role to play in mental health, and we tend to feel best when we like the way our body looks. If for you that means wanting less/no cellulite, then the above are some ways towards that.

    As a bonus, most of the nonmedical options are directly good for the physical health anyway, so doing them is of course good.

    In particular that last one (the wooden massage roller), because that connective tissue we talked about? It matters for a lot more than just cellulite, and is heavily implicated in a lot of kinds of chronic pain, so it pays to keep it in good health:

    Fascia: Why (And How) You Should Take Care Of Yours

    (that article, also written by this same writer by the way, suggests a vibrating foam roller—those are very popular; I just really love my wooden one, and find it more effective)

    Take care!

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  • Mung Beans vs Black Beans – Which is Healthier?

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

    Our Verdict

    When comparing mung beans to black beans, we picked the black beans.

    Why?

    Both are great! But…

    In terms of macros, black beans have more protein, carbs, and fiber, as well as the lower glycemic index (although both are already low). So, a clear win for black beans here.

    In the category of vitamins, mung beans have more of vitamins A, B5, B9, and C, while black beans have more of vitamins B1, B6, E, K, and choline. Thus, a slight win for black beans this time.

    When it comes to minerals, mung beans have more selenium and zinc, while black beans have more calcium, copper, iron, magnesium, manganese, phosphorus, and potassium. An easy win for black beans.

    Of course, enjoy either or both—but if you’re going to pick one, we say black beans win the day.

    Want to learn more?

    You might like to read:

    Plant vs Animal Protein: Head-to-Head

    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

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