How White Is Your Tongue?

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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

❝So its normal to develop a white sort of coating on the tongue, right? It develops when I eat, and is able to (somewhat) easily be brushed off❞

If (and only if) there is no soreness and the coverage of the whiteness is not extreme, then, yes, that is normal and fine.

Your mouth has a microbiome, and it’s supposed to have one (helps keep the conditions in your mouth correct, so that food is broken down and/but your gums and teeth aren’t).

Read more: The oral microbiome: Role of key organisms and complex networks in oral health and disease

The whiteness you often see on a healthy tongue is, for the most part, bacteria and dead cells—harmless.

Cleaning the whiteness off with your brush is fine. You can also scrape off with floss is similar if you prefer. Or a tongue-scraper! Those can be especially good for people for whom brushing the tongue is an unpleasant sensation. Or you can just leave it, if it doesn’t bother you.

By the way, that microbiome is a reason it can be good to go easy on the mouthwash. Moderate use of mouthwash is usually fine, but you don’t want to wipe out your microbiome then have it taken over by unpleasantries that the mouthwash didn’t kill (unpleasantries like C. albicans).

There are other mouthwash-related considerations too:

Toothpastes and mouthwashes: which kinds help, and which kinds harm?

If you start to get soreness, that probably means the papillae (little villi-like things) are inflamed. If there is soreness, and/or the whiteness is extreme, then it could be a fungal infection (usually C. albicans, also called Thrush), in which case, antifungal medications will be needed, which you can probably get over the counter from your pharmacist.

Do not try to self-treat with antibiotics.

Antibiotics will make a fungal infection worse (indeed, antibiotic usage is often the reason for getting fungal growth in the first place) by wiping out the bacteria that normally keep it in check.

Other risk factors include a sugary diet, smoking, and medications that have “dry mouth” as a side effect.

Read more: Can oral thrush be prevented?

If you have any symptoms more exciting than the above, then definitely see a doctor.

Take care!

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  • The Brain-Skin Doctor

    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.

    Of Brains And Breakouts

    This is Dr. Claudia Aguirre. She’s a molecular neuroscientist, and today she’s going to be educating us about skin.

    What? Why?

    When we say “neuroscience”, we generally think of the brain. And indeed, that’s a very important part of it.

    We might think about eyes, which are basically an extension of the brain.

    We don’t usually think about skin, which (just like our eyes) is constantly feeding us a lot of information about our surroundings, via a little under three million nerve endings. Guess where the other ends of those nerves lead!

    There’s a constant two-way communication going on between our brain and our skin.

    What does she want us to know?

    Psychodermatology

    The brain and the skin talk to each other, and maladies of one can impact the other:

    • Directly, e.g. stress prompting skin breakouts (actually this is a several-step process physiologically, but for the sake of brevity we’ll call this direct)
    • Indirectly, e.g. nervous disorders that result in people scratching or picking at their skin, which prompts a whole vicious cycle of one thing making the other worse

    Read more: Psychodermatology: The Brain-Skin Connection

    To address both kinds of problems, clearly something beyond moisturizer is needed!

    Mindfulness (meditation and beyond)

    Mindfulness is a well-evidenced healthful practice for many reasons, and Dr. Aguirra argues the case for it being good for our skin too.

    As she points out,

    ❝Cultural stress and anxiety can trigger or aggravate many skin conditions—from acne to eczema to herpes, psoriasis, and rosacea.

    Conversely, a disfiguring skin condition can trigger stress, anxiety, depression, and even suicide.

    Chronic, generalized anxiety can create chronic inflammation and exacerbate inflammatory skin conditions, such as those I mentioned previously.

    Chronic stress can result in chronic anxiety, hypervigilance, poor sleep, and a whole cascade of effects resulting in a constant breakdown of tissues and organs, including the skin.❞

    ~ Dr. Claudia Aguirra

    So, she recommends mindfulness-based stress reduction (MBSR), for the above reasons, along with others!

    Read more: Mind Matters

    How to do it: No-Frills, Evidence-Based Mindfulness

    And as for “and beyond?”

    Do you remember in the beginning of the pandemic, when people were briefly much more consciously trying to avoid touching their faces so much? That, too, is mindfulness. It may have been a stressed and anxious mindfulness for many*, but mindfulness nonetheless.

    *which is why “mindfulness-based stress reduction” is not a redundant tautology repeated more than once unnecessarily, one time after another 😉

    So: do try to keep aware of what you are doing to your skin, and so far as is reasonably practicable, only do the things that are good for it!

    The skin as an endocrine organ

    Nerves are not the only messengers in the body; hormones do a lot of our body’s internal communication too. And not just the ones everyone remembers are hormones (e.g. estrogen, testosterone, although yes, they do both have a big impact on skin too), but also many more, including some made in the skin itself!

    Dr. Aguirra gives us a rundown of common conditions, the hormones behind them, and what we can do if we don’t want them:

    Read more: Rethinking The Skin As An Endocrine Organ

    Take-away advice:

    For healthy skin, we need to do more than just hydrate, get good sleep, have good nutrition, and get a little sun (but not too much).

    • We should also practice mindfulness-based stress reduction, and seek help for more serious mental health issues.
    • We should also remember the part our hormones play in our skin, and not just the obvious ones.

    Did you know that vitamin D is also a hormone, by the way? It’s not the only hormone at play in your skin by a long way, but it is an important one:

    Society for Endocrinology | Vitamin D

    Want to know more?

    You might like this interview with Dr. Aguirre:

    The Brain in Our Skin: An Interview with Dr. Claudia Aguirre

    Take care!

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  • The Orchid That Renovates Your Gut (Gently)

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    The Orchid That Renovates Your Gut (Gently)

    Dendrobium officinale is an orchid that’s made its way from Traditional Chinese Medicine into modern science.

    Read: Traditional Uses, Phytochemistry, Pharmacology, and Quality Control of Dendrobium officinale

    To summarize its benefits, we’ll quote from Dr. Paharia’s article featured in our “what’s happening in the health world” section all so recently:

    ❝Gut microbes process Dendriobium officinale polysaccharides (DOPs) in the colon, producing short-chain fatty acids (SCFAs) and oligosaccharides that alter gut microbial composition and improve human health.

    DOPs have been shown to decrease harmful bacteria like E. coli and Staphylococcus while promoting beneficial ones like Bifidobacterium.❞

    Source: The future of functional foods: leveraging Dendrobium officinale for optimal gut health and disease prevention

    We don’t stop at secondary sources, though, so we took a look at the science.

    Dr. Wu et al. found (we’ll quote directly for these bullet points):

    • DOPs have been shown to influence the gut microbiota, such as the abundance of Lactobacillus, Bifidobacterium, Akkermansia, Bacteroides, and Prevotella, and provide different benefits to the host due to structural differences.
    • The dietary intake of DOPs has been shown to improve the composition of the gut microbiome and offers new intervention strategies for metabolic diseases such as obesity and type 2 diabetes as well as inflammatory diseases such as chronic obstructive pulmonary disease and colitis.
    • Compared to drug therapy, intervention with DOPs is not specific and has a longer intervention duration

    Source: Structure, Health Benefits, Mechanisms, and Gut Microbiota of Dendrobium officinale Polysaccharides: A Review

    This is consistent with previous research on Dendrobium officinale, such as last year’s:

    ❝DOP significantly increased benign intestinal microbe proportion (Lactobacillus, etc.), but reduced harmful bacteria (Escherichia shigella) (P < 0.05), and significantly increased butyric acid production (P < 0.05)❞

    Source: Dendrobium officinale Xianhu 2 polysaccharide helps forming a healthy gut microbiota and improving host immune system

    In summary…

    Research so far indicates that this does a lot of good for the gut, in a way that can “kickstart” healthier, self-regulating gut microbiota.

    As to its further prospects, check out:

    Dendrobium as a new natural source of bioactive for the prevention and treatment of digestive tract diseases: a comprehensive review with future perspectives

    Very promising!

    Where can I get it?

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

    Be warned, it is expensive though!

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  • Ayurveda’s Contributions To 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.

    Ayurveda’s Contributions To Science (Without Being Itself Rooted in Scientific Method)

    Yesterday, we asked you for your opinions on ayurveda, and got the above-depicted, below-described, set of responses. Of those who responded…

    • A little over 41% said “I don’t know what ayurveda is without looking it up”
    • A little over 37% said “It is a fine branch of health science with millennia of evidence”
    • A little over 16% said “It gets some things right, but not by actual science”
    • A little over 4% said “It is a potentially dangerous pseudoscience”

    So, what does the science say?

    Ayurveda is scientific: True or False?

    False, simply. Let’s just rip the band-aid off in this case. That doesn’t mean it’s necessarily without merit, though!

    Let’s put it this way:

    • If you drink coffee to feel more awake because scientific method has discerned that caffeine has vasoconstrictive and adenosine-blocking effects while also promoting dopaminergic activity, then your consumption of coffee is evidence-based and scientific. Great!
    • If you drink coffee to feel more awake because somebody told you that that somebody told them that it energizes you by balancing the elements fire (the heat of the coffee), air (the little bubbles on top), earth (the coffee grinds), water (the water), and ether (steam), then that is neither evidence-based nor scientific, but it will still work exactly the same.

    Ayurveda is a little like that. It’s an ancient traditional Indian medicine, based on a combination of anecdotal evidence and supposition.

    • The anecdotal evidence from ayurveda has often resulted in herbal remedies that, in modern scientific trials, have been found to have merit.
      • Ayurvedic meditative practices also have a large overlap with modern mindfulness practices, and have also been found to have merit
      • Ayurveda also promotes the practice of yoga, which is indeed a very healthful activity
    • The supposition from ayurveda is based largely in those five elements we mentioned above, as well as a “balancing of humors” comparable to medieval European medicine, and from a scientific perspective, is simply a hypothesis with no evidence to support it.

    Note: while ayurveda is commonly described as a science by its practitioners in the modern age, it did not originally claim to be scientific, but rather, wisdom handed down directly by the god Dhanvantari.

    Ayurveda gets some things right: True or False?

    True! Indeed, we covered some before in 10almonds; you may remember:

    Bacopa Monnieri: A Well-Evidenced Cognitive Enhancer

    (Bacopa monnieri is also known by its name in ayurveda, brahmi)

    There are many other herbs that have made their way from ayurveda into modern science, but the above is a stand-out example. Others include:

    Yoga and meditation are also great, and not only that, but great by science, for example:

    Ayurveda is a potentially dangerous pseudoscience: True or False?

    Also True! We covered why it’s a pseudoscience above, but that doesn’t make it potentially dangerous, per se (you’ll remember our coffee example).

    What does, however, make it potentially dangerous (dose-dependent) is its use of heavy metals such as lead, mercury, and arsenic:

    Heavy Metal Content of Ayurvedic Herbal Medicine Products

    Some final thoughts…

    Want to learn more about the sometimes beneficial, sometimes uneasy relationship between ayurveda and modern science?

    A lot of scholarly articles trying to bridge (or further separate) the two were very biased one way or the other.

    Instead, here’s one that’s reasonably optimistic with regard to ayurveda’s potential for good, while being realistic about how it currently stands:

    Development of Ayurveda—Tradition to trend

    Take care!

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    A lot of the book is given over to explanations of what is typically going wrong—that is the title of the book, after all. From metabolic starvation responses to genetics to the negative feedback loop of poor body image, there’s a lot to address.

    However, what alternative does she propose?

    The book takes us on a shift away from focusing on the numbers on the scale, and more on building consistent healthy habits. It might not feel like it if you desperately want to lose weight, but it’s better to have healthy habits at any weight, than to have a wreck of physical and mental health for the sake of a lower body mass.

    Dr. Aamodt lays out a plan for shifting perspectives, building health, and letting weight loss come by itself—as a side effect, not a goal.

    In fact, as she argues (in agreement with the best current science, science that we’ve covered before at 10almonds, for that matter), that over a certain age, people in the “overweight” category of BMI have a reduced mortality risk compared to those in the “healthy weight” category. It really underlines how there’s no point in making oneself miserably unhealthy with the end goal of having a lighter coffin—and getting it sooner.

    Bottom line: will this book make you hit those glossy-magazine weight goals by your next vacation? Quite possibly not, but it will set you up for actually healthier living, for life, at any weight.

    Click here to check out Why Diets Make Us Fat, and live healthier and better!

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  • Master Your Core – by Dr. Bohdanna Zazulak

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    In the category of “washboard abs”, this one isn’t particularly interested in how much or how little fat you have. What it’s more interested in is a strong, resilient, and stable core. Including your abs yes, but also glutes, hips, and back.

    Nor is the focus on superhuman feats of strength, though certainly one could use these exercises to work towards that. Rather, here we see importance placed on functional performance, mobility, and stability.

    Lest mobility and stability seem at odds with each other, understand:

    • By mobility we mean the range of movement we are able to accomplish.
    • By stability, we mean that any movement we make is intentional, and not because we lost our balance.

    Functional performance, meanwhile, is a function of those two things, plus strength.

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    There are exercises to do. Exercises of the athletic kind you might expect, and also exercises including breathing exercises, which gets quite a bit of attention too. Not just “do abdominal breathing”, but quite an in-depth examination of such. There are also habits to form, and lifestyle tweaks to make.

    Of course, you don’t have to do all the things she suggests. The more you do, the better results you are likely to get, but if you adopt even some of the practices she recommends, you’re likely to see some benefits. And, perhaps most importantly, reduce age-related loss of mobility, stability, and strength.

    Bottom line: a great all-rounder book of core strength, mobility, and stability.

    Click here to check out Master Your Core and enjoy the more robust health that comes with it!

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  • Saunas: Health Benefits (& Caveats)

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

    The Heat Is On

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

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

    So what does the science say?

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

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

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

    However, we did find one:

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

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

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

    ~ Dr. Matti Hannuksela & Dr. Samer Ellahham

    Source: Benefits and risks of sauna bathing

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

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

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

    Beneficial effects of sauna bathing for heart failure patients

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

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

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

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

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

    Not only that, also…

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

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

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

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

    ~ Dr. Jari Laukkanen & Dr. Setor Kunutsor

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

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

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

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

    Want to read more?

    You might like our previous main feature,

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

    Take care!

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