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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  • Hard to Kill – by Dr. Jaime Seeman

    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.

    We’ve written before about Dr. Seeman’s method for robust health at all ages, focussing on:

    • Nutrition
    • Movement
    • Sleep
    • Mindset
    • Environment

    In this book, she expands on these things far more than we have room to in our little newsletter, including (importantly!) how each interplays with the others. She also follows up with an invitation to take the “Hard to Kill 30-Day Challenge”.

    That said, in the category of criticism, it’s only 152 pages, and she takes some of that to advertise her online services in an effort to upsell the reader.

    Nevertheless, there’s a lot of worth in the book itself, and the writing style is certainly easy-reading and compelling.

    Bottom line: this book is half instructional, half motivational, and covers some very important areas of health.

    Click here to check out “Hard to Kill”, and enjoy robust health at every age!

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  • The Two-Second Advantage – by Vivek Ranadive and Kevin Maney

    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 titular “two-second advantage” can in some cases be literal (imagine you got a two-second head-start in a boxing match!), in other cases can refer to being just a little ahead of things in a way that can confer a great advantage, often cumulatively—as anyone who’s played Monopoly can certainly attest.

    Vivek Ranadivé and Kevin Maney give us lots of examples from business, sports, politics, economics, and more, in a way that seeks to cultivate a habit of asking the right questions in order to anticipate the future and not just be ahead of the competition—some areas of life don’t have competition for most people, like health, for example—but to generally have things “in hand”.

    When it comes to personal finances, health, personal projects, and the like, those tiny initial advantages that lead to incremental further improvements, can be the difference between continually (and frantically) playing catch-up, or making the jump past breaking even to going from strength to strength.

    Check out today’s book on Amazon!

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  • Nicotine pouches are being marketed to young people on social media. But are they safe, or even legal?

    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.

    Flavoured nicotine pouches are being promoted to young people on social media platforms such as TikTok and Instagram.

    Although some viral videos have been taken down following a series of reports in The Guardian, clips featuring Australian influencers have claimed nicotine pouches are a safe and effective way to quit vaping. A number of the videos have included links to websites selling these products.

    With the rapid rise in youth vaping and the subsequent implementation of several reforms to restrict access to vaping products, it’s not entirely surprising the tobacco industry is introducing more products to maintain its future revenue stream.

    The major trans-national tobacco companies, including Philip Morris International and British American Tobacco, all manufacture nicotine pouches. British American Tobacco’s brand of nicotine pouches, Velo, is a leading sponsor of the McLaren Formula 1 team.

    But what are nicotine pouches, and are they even legal in Australia?

    Like snus, but different

    Nicotine pouches are available in many countries around the world, and their sales are increasing rapidly, especially among young people.

    Nicotine pouches look a bit like small tea bags and are placed between the lip and gum. They’re typically sold in small, colourful tins of about 15 to 20 pouches. While the pouches don’t contain tobacco, they do contain nicotine that is either extracted from tobacco plants or made synthetically. The pouches come in a wide range of strengths.

    As well as nicotine, the pouches commonly contain plant fibres (in place of tobacco, plant fibres serve as a filler and give the pouches shape), sweeteners and flavours. Just like for vaping products, there’s a vast array of pouch flavours available including different varieties of fruit, confectionery, spices and drinks.

    The range of appealing flavours, as well as the fact they can be used discreetly, may make nicotine pouches particularity attractive to young people.

    Two teenage girls vaping on a blanket in a park.
    Vaping has recently been subject to tighter regulation in Australia.
    Aleksandr Yu/Shutterstock

    Users absorb the nicotine in their mouths and simply replace the pouch when all the nicotine has been absorbed. Tobacco-free nicotine pouches are a relatively recent product, but similar style products that do contain tobacco, known as snus, have been popular in Scandinavian countries, particularly Sweden, for decades.

    Snus and nicotine pouches are however different products. And given snus contains tobacco and nicotine pouches don’t, the products are subject to quite different regulations in Australia.

    What does the law say?

    Pouches that contain tobacco, like snus, have been banned in Australia since 1991, as part of a consumer product ban on all forms of smokeless tobacco products. This means other smokeless tobacco products such as chewing tobacco, snuff, and dissolvable tobacco sticks or tablets, are also banned from sale in Australia.

    Tobacco-free nicotine pouches cannot legally be sold by general retailers, like tobacconists and convenience stores, in Australia either. But the reasons for this are more complex.

    In Australia, under the Poisons Standard, nicotine is a prescription-only medicine, with two exceptions. Nicotine can be used in tobacco prepared and packed for smoking, such as cigarettes, roll-your-own tobacco, and cigars, as well as in preparations for therapeutic use as a smoking cessation aid, such as nicotine patches, gum, mouth spray and lozenges.

    If a nicotine-containing product does not meet either of these two exceptions, it cannot be legally sold by general retailers. No nicotine pouches have currently been approved by the Therapeutic Goods Administration as a therapeutic aid in smoking cessation, so in short they’re not legal to sell in Australia.

    However, nicotine pouches can be legally imported for personal use only if users have a prescription from a medical professional who can assess if the product is appropriate for individual use.

    We only have anecdotal reports of nicotine pouch use, not hard data, as these products are very new in Australia. But we do know authorities are increasingly seizing these products from retailers. It’s highly unlikely any young people using nicotine pouches are accessing them through legal channels.

    Health concerns

    Nicotine exposure may induce effects including dizziness, headache, nausea and abdominal cramps, especially among people who don’t normally smoke or vape.

    Although we don’t yet have much evidence on the long term health effects of nicotine pouches, we know nicotine is addictive and harmful to health. For example, it can cause problems in the cardiovascular system (such as heart arrhythmia), particularly at high doses. It may also have negative effects on adolescent brain development.

    The nicotine contents of some of the nicotine pouches on the market is alarmingly high. Certain brands offer pouches containing more than 10mg of nicotine, which is similar to a cigarette. According to a World Health Organization (WHO) report, pouches deliver enough nicotine to induce and sustain nicotine addiction.

    Pouches are also being marketed as a product to use when it’s not possible to vape or smoke, such as on a plane. So instead of helping a person quit they may be used in addition to smoking and vaping. And importantly, there’s no clear evidence pouches are an effective smoking or vaping cessation aid.

    A Velo product display at Dubai airport in October 2022.
    A Velo product display at Dubai airport in October 2022. Nicotine pouches are marketed as safe to use on planes.
    Becky Freeman

    Further, some nicotine pouches, despite being tobacco-free, still contain tobacco-specific nitrosamines. These compounds can damage DNA, and with long term exposure, can cause cancer.

    Overall, there’s limited data on the harms of nicotine pouches because they’ve been on the market for only a short time. But the WHO recommends a cautious approach given their similarities to smokeless tobacco products.

    For anyone wanting advice and support to quit smoking or vaping, it’s best to talk to your doctor or pharmacist, or access trusted sources such as Quitline or the iCanQuit website.The Conversation

    Becky Freeman, Associate Professor, School of Public Health, University of Sydney

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

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  • Super Gut – by Dr. William Davis

    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 wondering: what sets this book apart from the other gut health books we’ve reviewed? For this one, mostly it’s depth.

    This is the most scientifically dense book we’ve reviewed on gut health, so if you’re put off by that, this might not be one for you. However, you don’t need prior knowledge, as he does explain things as he goes. The advice in this book is not just the usual “gut health 101” stuff, either!

    A particular strength of this book is that it looks at a wide variety of gut- and gut-related disorders, and ways certain readers may need to do different things than others, to address those problems on the path to good gut health.

    The style, for all its hard science content, is quite sensationalist, and that may take some getting used to for non-Americans. However, it doesn’t affect the content!

    Bottom line: if you just want simple basic advice, then probably best to skip this one. However, if you are sincerely serious about gut health (or just like reading this sort of thing because learning is satisfying), then this book is packed with relevant and detailed information.

    Click here to check out Super Gut, and get to know and improve yours!

    Don’t Forget…

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  • Bright Line Eating – by Dr. Susan Peirce Thompson

    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 great title! It’s a great book too, but let’s talk about the title for a moment:

    The “Bright Line” referenced (often used in the plural within the book) is the line one draws between what one will and will not do. It’s a line one doesn’t cross, and it’s a bright line, because it’s not a case of “oh woe is me I cannot have the thing”, but rather “oh yay is me for I being joyously healthy”.

    And as for living happy, thin, and free? The author makes clear that “thin” is only a laudable goal if it’s bookended by “happy” and “free”. Eating things because we want to, and being happy about our choices.

    To this end, while some of the book is about nutrition (and for example the strong recommendation to make the first “bright lines” one draws cutting out sugar and flour), the majority of it is about the psychology of eating.

    This includes, hunger and satiety, willpower and lack thereof, disordered eating and addictions, body image issues and social considerations, the works. She realizes and explains, that if being healthy were just a matter of the right diet plan, everyone would be healthy. But it’s not; our eating behaviors don’t exist in a vacuum, and there’s a lot more to consider.

    Despite all the odds, however, this is a cheerful and uplifting book throughout, while dispensing very practical, well-evidenced methods for getting your brain to get your body to do what you want it to.

    Bottom line: this isn’t your average diet book, and it’s not just a motivational pep talk either. It’s an enjoyable read that’s also full of science and can make a huge difference to how you see food.

    Click here to check out Bright Line Eating, and enjoy life, healthily!

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  • Gentler Hair Health Options

    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.

    Hair, Gently

    We have previously talked about the medicinal options for combatting the thinning hair that comes with age especially for men, but also for a lot of women. You can read about those medicinal options here:

    Hair-Loss Remedies, By Science

    We also did a whole supplement spotlight research review for saw palmetto! You can read about how that might help you keep your hair present and correct, here:

    One Man’s Saw Palmetto Is Another Woman’s Serenoa Repens

    Today we’re going to talk options that are less “heavy guns”, and/but still very useful.

    Supplementation

    First, the obvious. Taking vitamins and minerals, especially biotin, can help a lot. This writer takes 10,000µg (that’s micrograms, not milligrams!) biotin gummies, similar to this example product on Amazon (except mine also has other vitamins and minerals in, but the exact product doesn’t seem to be available on Amazon).

    When thinking “what vitamins and minerals help hair?”, honestly, it’s most of them. So, focus on the ones that count for the most (usually: biotin and zinc), and then cover your bases for the rest with good diet and additional supplementation if you wish.

    Caffeine (topical)

    It may feel silly, giving one’s hair a stimulant, but topical caffeine application really does work to stimulate hair growth. And not “just a little help”, either:

    ❝Specifically, 0.2% topical caffeine-based solutions are typically safe with very minimal adverse effects for long-term treatment of AGA, and they are not inferior to topical 5% minoxidil therapy❞

    ~ Dr. Bajoria et al.

    (AGA = Androgenic Alopecia)

    Read more: Comparing Current Therapeutic Modalities of Androgenic Alopecia: A Literature Review of Clinical Trials

    Argan oil

    As with coconut oil, argan oil is great on hair. It won’t do a thing to improve hair growth or decrease hair shedding, but it will help you hair stay moisturized and thus reduce breakage—thus, may not be relevant for everyone, but for those of us with hair long enough to brush, it’s important.

    Bonus: get an argan oil based hair serum that also contains keratin (the protein used to make hair), as this helps strengthen the hair too.

    Here’s an example product on Amazon

    Silk pillowcases

    Or a silk hair bonnet to sleep in! They both do the same thing, which is prevent damaging the hair in one’s sleep by reducing the friction that it may have when moving/turning against the pillow in one’s sleep.

    • Pros of the bonnet: if you have lots of hair and a partner in bed with you, your hair need not be in their face, and you also won’t get it caught under you or them.
    • Pros of the pillowcase: you don’t have to wear a bonnet

    Both are also used widely by people without hair loss issues, but with easily damaged and/or tangled hair—Black people especially with 3C or tighter curls in particular often benefit from this. Other people whose hair is curly and/or gray also stand to gain a lot.

    Here are Amazon example products of a silk pillowcase (it’s expensive, but worth it) and a silk bonnet, respectively

    Want to read more?

    You might like this article:

    From straight to curly, thick to thin: here’s how hormones and chemotherapy can change your hair

    Take care!

    Don’t Forget…

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