Should You Shower Daily?

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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

❝I read an article that daily showering is “performative” and doesn’t really give any health benefits, what do you say?❞

We looked to find the article you might be referring to, and this seems to be about a BBC article that was then picked up, rehashed in fewer (but more sensational) words, and widely popularized by the New York Post (not the most scholarly of publications, but it seems to have “done numbers”).

Here’s the BBC article:

BBC | There’s no need to shower every day—here’s why

Looking for the science behind the “Experts say…” claims, none of the articles we found linked to any new research. One of them did link to some old (2005) research:

Sage Journals | Explaining Showering: A Discussion of the Material, Conventional, and Temporal Dimensions of Practice

We also see (in the dearth of scholarly research to cite), a Harvard Health article being cited quite a bit, and this is more helpful and informative than the flashy news articles, without requiring to read through a lot of hard science.

To summarize, Harvard’s Dr. Shmerling says daily showering can:

  • Cause/worsen dry skin
  • Make skin more permeable to pathogens
  • Upset our natural balance of bacteria that are supposed to be there
  • Weaken our immune system

Read in full: Harvard Health | Showering daily—is it necessary?

But what if I like showering?

Well, don’t let us stop you. But you might consider using less in the way of shower products. We wrote about this previously, in answer to a different-but-related subscriber question:

10almonds | Body Scrubs: Benefits, Risks, and Guidance

PS…

Handwashing, though? Most people could reasonably do that more often:

The Truth About Handwashing

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  • Stop Trying To Lose Weight (And Do This Instead)

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    “Lose weight” is a common goal of many people, and it’s especially a common goal handed down from medical authority figures, often as a manner of “kicking the can down the road” with regard to the doctor actually having to do some work. “Lose 20 pounds and then we’ll talk”, etc.

    The thing is, it’s often not a very good or helpful goal… Even if it would be healthy for a given person to lose weight. Instead, biochemist Jessie Inchauspé argues, one should set a directly health-giving goal instead, and let any weight loss, if the body agrees it is appropriate, be a by-product of that

    She recommends focusing on metabolic health, specifically, her own specialism is blood glucose maintenance. This is something that diabetics deal with (to one degree or another) every day, but it’s something whose importance should not be underestimated for non-diabetics too.

    Keep our blood sugar levels healthy, she says, and a lot of the rest of good health will fall into place by itself—precisely because we’re not constantly sabotaging our body (first the pancreas and liver, then the rest of the body like dominoes).

    To that end, she offers a multitude of “hacks” that really work.

    Her magnum opus, “Glucose Revolution“, explains the science in great detail and does it very well! Not to be mistaken for her shorter, simpler, and entirely pragmatic “do this, then this”-style book, “The Glucose Goddess Method”, which is also great, but doesn’t go into the science more than absolutely necessary; it’s more for the “I’ll trust you; just tell me what I need to know” crowd.

    In her own words:

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

    Prefer text?

    We’ve covered Inchauspé’s top 10 recommended hacks here:

    10 Ways To Balance Blood Sugars

    Enjoy!

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  • The Brain-Gut Highway: A Two-Way Street

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    The Brain-Gut Two-Way Highway

    This is Dr. Emeran Mayer. He has the rather niche dual specialty of being a gastroenterologist and a neurologist. He has published over 353 peer reviewed scientific articles, and he’s a professor in the Departments of Medicine, Physiology, and Psychiatry at UCLA. Much of his work has been pioneering medical research into gut-brain interactions.

    We know the brain and gut are connected. What else does he want us to know?

    First, that it is a two-way interaction. It’s about 90% “gut tells the brain things”, but it’s also 10% “brain tells the gut things”, and that 10% can make more like a 20% difference, if for example we look at the swing between “brain using that 10% communication to tell gut to do things worse” or “brain using that 10% communication to tell gut to do things better”, vs the midpoint null hypothesis of “what the gut would be doing with no direction from the brain”.

    For example, if we are experiencing unmanaged chronic stress, that is going to tell our gut to do things that had an evolutionary advantage 20,000–200,000 years ago. Those things will not help us now. We do not need cortisol highs and adrenal dumping because we ate a piece of bread while stressed.

    Read more (by Dr. Mayer): The Stress That Evolution Has Not Prepared Us For

    With this in mind, if we want to look after our gut, then we can start before we even put anything in our mouths. Dr. Mayer recommends managing stress, anxiety, and depression from the head downwards as well as from the gut upwards.

    Here’s what we at 10almonds have written previously on how to manage those things:

    Do eat for gut health! Yes, even if…

    Unsurprisingly, Dr. Mayer advocates for a gut-friendly, anti-inflammatory diet. We’ve written about these things before:

    …but there’s just one problem:

    For some people, such as with IBS, Crohn’s, and colitis, the Mediterranean diet that we (10almonds and Dr. Mayer) generally advocate for, is inaccessible. If you (if you have those conditions) eat as we describe, a combination of the fiber in many vegetables and the FODMAPs* in many fruits, will give you a very bad time indeed.

    *Fermentable Oligo-, Di-, Monosaccharides And Polyols

    Dr. Mayer has the answer to this riddle, and he’s not just guessing; he and his team did science to it. In a study with hundreds of participants, he measured what happened with adherence (or not) to the Mediterranean diet (or modified Mediterranean diet) (or not), in participants with IBS (or not).

    The results and conclusions from that study included:

    ❝Among IBS participants, a higher consumption of fruits, vegetables, sugar, and butter was associated with a greater severity of IBS symptoms. Multivariate analysis identified several Mediterranean Diet foods to be associated with increased IBS symptoms.

    A higher adherence to symptom-modified Mediterranean Diet was associated with a lower abundance of potentially harmful Faecalitalea, Streptococcus, and Intestinibacter, and higher abundance of potentially beneficial Holdemanella from the Firmicutes phylum.

    A standard Mediterranean Diet was not associated with IBS symptom severity, although certain Mediterranean Diet foods were associated with increased IBS symptoms. Our study suggests that standard Mediterranean Diet may not be suitable for all patients with IBS and likely needs to be personalized in those with increased symptoms.❞

    In graphical form:

    And if you’d like to read more about this (along with more details on which specific foods to include or exclude to get these results), you can do so…

    Want to know more?

    Dr. Mayer offers many resources, including a blog, books, recipes, podcasts, and even a YouTube channel:

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  • Cucumber vs Lychee – Which is Healthier?

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    Our Verdict

    When comparing cucumber to lychee, we picked the lychee.

    Why?

    In terms of macros, the lychee has more carbs and more fiber, but both are low glycemic index foods. Functionally a tie, though we could consider it a nominal win for cucumber.

    In the category of vitamins, cucumber has more of vitamins A, B1, B5, and K, while lychee has more of vitamins B2, B3, B6, B9, C, E, and choline. In particular, cucumber has a lot more vitamin K and lychee has a lot more vitamin C. Nevertheless, in terms of overall vitamin coverage, lychee is the clear winner here.

    Looking at minerals, cucumber has more calcium, magnesium, manganese, and zinc, while lychee has more copper (especially rich in this), iron, phosphorus, potassium, and selenium. Another clear win for lychee.

    Both have an abundance of anti-inflammatory polyphenols, but we could find no strong argument for one being better than the other in this category, just different.

    In short, both are fine options, but the more nutritionally dense is the lychee, so that’s our choice!

    Want to learn more?

    You might like to read:

    Cucumber Extract Beats Glucosamine & Chondroitin… At 1/135th Of The Dose?!

    Take care!

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  • Reduce Your Skin Tag Risk
  • Does Eating Shellfish Contribute To Gout?

    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 😎

    ❝I have a question about seafood as healthy, doesn’t eating shellfish contribute to gout?❞

    It can do! Gout (a kind of inflammatory arthritis characterized by the depositing of uric acid crystals in joints) has many risk factors, and diet is one component, albeit certainly the most talked-about one.

    First, you may be wondering: isn’t all arthritis inflammatory? Since arthritis is by definition the inflammation of joints, this is a reasonable question, but when it comes to classifying the kinds, “inflammatory” arthritis is caused by inflammation, while “non-inflammatory” arthritis (a slightly confusing name) merely has inflammation as one of its symptoms (and is caused by physical wear-and-tear). For more information, see:

    As for gout specifically, top risk factors include:

    • Increasing age: risk increases with age
    • Being male: women do get gout, but much less often
    • Hypertension: all-cause hypertension is the biggest reasonably controllable factor

    There’s not a lot we can do about age (but of course, looking after our general health will tend to slow biological aging, and after all, diseases only care about the state of our body, not what the date on the calendar is).

    As for sex, this risk factor is hormones, and specifically has to do with estrogen and testosterone’s very different effects on the immune system (bearing in mind that chronic inflammation is a disorder of the immune system). However, few if any men would take up feminizing hormone therapy just to lower their gout risk!

    That leaves hypertension, which happily is something that we can all (barring extreme personal circumstances) do quite a bit about. Here’s a good starting point:

    Hypertension: Factors Far More Relevant Than Salt

    …and for further pointers:

    How To Lower Your Blood Pressure (Cardiologists Explain)

    As for diet specifically (and yes, shellfish):

    The largest study into this (and thus, one of the top ones cited in a lot of other literature) looked at 47,150 men with no history of gout at the baseline.

    So, with the caveat that their findings could have been different for women, they found:

    • Eating meat in general increased gout risk
      • Narrowing down specific meats: beef, pork, and lamb were the worst offenders
    • Eating seafood in general increased gout risk
      • Narrowing down specific seafoods: all seafoods increased gout risk within a similar range
      • As a specific quirk of seafoods: the risk was increased if the man had a BMI under 25
    • Eating dairy in general was not associated with an increased risk of gout
      • Narrowing down specific dairy foods: low-fat dairy products such as yogurt were associated with a decreased risk of gout
    • Eating purine-rich vegetables in general was not associated with an increased risk of gout
      • Narrowing down to specific purine-rich vegetables: no purine-rich vegetable was associated with an increase in the risk of gout

    Dairy products were included in the study, as dairy products in general and non-fermented dairy products in particular are often associated with increased inflammation. However, the association was simply not found to exist when it came to gout risk.

    Purine-rich vegetables were included in the study, as animal products highest in purines have typically been found to have the worst effect on gout. However, the association was simply not found to exist when it came to plants with purines.

    You can read the full study here:

    Purine-Rich Foods, Dairy and Protein Intake, and the Risk of Gout in Men

    So, the short answer to your question of “doesn’t eating shellfish contribute to the risk of gout” is:

    Yes, it can, but occasional consumption probably won’t result in gout unless you have other risk factors going against you.

    If you’re a slim male 80-year-old alcoholic smoker with hypertension, then definitely do consider skipping the lobster, but honestly, there may be bigger issues to tackle there.

    And similarly, obviously skip it if you have a shellfish allergy, and if you’re vegan or vegetarian or abstain from shellfish for religious reasons, then you can certainly live very healthily without ever having any.

    See also: Do We Need Animal Products, To Be Healthy?

    For most people most of the time, a moderate consumption of seafood, including shellfish if you so desire, is considered healthy.

    As ever, do speak with your own doctor to know for sure, as your individual case may vary.

    For reference, this question was surely prompted by the article:

    Lobster vs Crab – Which is Healthier?

    Take care!

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  • Self-Compassion In A Relationship (Positives & Pitfalls)

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    Practise Self-Compassion In Your Relationship (But Watch Out!)

    Let’s make clear up-front: this is not about “…but not too much”.

    With that in mind…

    Now let’s set the scene: you, a happily-partnered person, have inadvertently erred and upset your partner. They may or may not have already forgiven you, but you are still angry at yourself.

    Likely next steps include all or any of:

    • continuing to apologise and try to explain
    • self-deprecatory diatribes
    • self-flagellation, probably not literally but in the sense of “I don’t deserve…” and acting on that feeling
    • self-removal, because you don’t want to further inflict your bad self on your partner

    As you might guess, these are quite varied in their degree of healthiness:

    • apologising is good, as even is explaining, but once it’s done, it’s done; let it go
    • self-deprecation is pretty much never useful, let alone healthy
    • self-flagellation likewise; it is not only inherently self-destructive, but will likely create an additional problem for your partner too
    • self-removal can be good or bad depending on the manner of that removal: there’s a difference between just going cold and distant on your partner, and saying “I’m sorry; this is my fault not yours, I don’t want to take it out on you, so please give me half an hour by myself to regain my composure, and I will come back with love then if that’s ok with you”

    About that last: mentioning the specific timeframe e.g. “half an hour” is critical, by the way—don’t leave your partner hanging! And then do also follow through on that; come back with love after the half-hour elapses. We suggest mindfulness meditation in the interim (here’s our guide to how), if you’re not sure what to do to get you there.

    To Err Is Human; To Forgive, Healthy (Here’s How To Do It) ← this goes for when the forgiveness in question is for yourself, too—and we do write about that there (and how)!

    This is important, by the way; not forgiving yourself can cause more serious issues down the line:

    Self-blame-selective hyper-connectivity between anterior temporal and subgenual cortices predicts prognosis in major depressive disorder

    If, by the way, you’re hand-wringing over “but was my apology good enough really, or should I…” then here is how to do it. Basically, do this, and then draw a line under it and consider it done:

    The Apology Checklist ← you’ll want to keep a copy of this, perhaps in the notes app on your phone, or a screenshot if you prefer

    (the checklist is at the bottom of that page)

    The catch

    It’s you, you’re the catch 👈👈😎

    Ok, that being said, there is actually a catch in the less cheery sense of the word, and it is:

    “It is important to be compassionate about one’s occasional failings in a relationship” does not mean “It is healthy to be neglectful of one’s partner’s emotional needs; that’s self-care, looking after #1; let them take care of themself too”

    …because that’s simply not being a couple at all.

    Think about it this way: the famous airline advice,

    “Put on your own oxygen mask before helping others with theirs”

    …does not mean “Put on your own oxygen mask and then watch those kids suffocate; it’s everyone for themself”

    So, the same goes in relationships too. And, as ever, we have science for this. There was a recent (2024) study, involving hundreds of heterosexual couples aged 18–73, which looked at two things, each measured with a scaled questionnaire:

    • Subjective levels of self-compassion
    • Subjective levels of relationship satisfaction

    For example, questions included asking participants to rate, from 1–5 depending on how much they felt the statements described them, e.g:

    In my relationship with my partner, I:

    • treat myself kindly when I experience sorrow and suffering.
    • accept my faults and weaknesses.
    • try to see my mistakes as part of human nature.
    • see difficulties as part of every relationship that everyone goes through once.
    • try to get a balanced view of the situation when something unpleasant happens.
    • try to keep my feelings in balance when something upsets me.

    Note: that’s not multiple choice! It’s asking participants to rate each response as applicable or not to them, on a scale of 1–5.

    And…

    ❝Women’s self-compassion was also positively linked with men’s total relationship satisfaction. Thus, men seem to experience overall satisfaction with the relationship when their female partner is self-kind and self-caring in difficult situations.

    Unexpectedly, however, we found that men’s relationship-specific self-compassion was negatively associated with women’s fulfillment.

    Baker and McNulty (2011) reported that, only for men, a Self-Compassion x Conscientiousness interaction explained whether the positive effects of self-compassion on the relationship emerged, but such an interaction was not found for women.

    Highly self-compassionate men who were low in conscientiousness were less motivated than others to remedy interpersonal mistakes in their romantic relationships, and this tendency was in turn related to lower relationship satisfaction❞

    ~ Dr. Astrid Schütz et al. (2024)

    Read in full: Is caring for oneself relevant to happy relationship functioning? Exploring associations between self-compassion and romantic relationship satisfaction in actors and partners

    And if you’d like to read the cited older paper from 2011, here it is:

    Read in full: Self-compassion and relationship maintenance: the moderating roles of conscientiousness and gender

    The take-away here is not: “men should not practice self-compassion”

    (rather, they absolutely should)

    The take-away is: we must each take responsibility for managing our own mood as best we are able; practice self-forgiveness where applicable and forgive our partner where applicable (and communicate that!)…. And then go consciously back to the mutual care on which the relationship is hopefully founded.

    Which doesn’t just mean love-bombing, by the way, it also means listening:

    The Problem With Active Listening (And How To Do Better)

    To close… We say this often, but we mean it every time: take care!

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  • This Is Your Brain on Food – by Dr. Uma Naidoo

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    “Diet will fix your brain” is a bold claim that often comes from wishful thinking and an optimistic place where anecdote is louder than evidence. But, diet does incontrovertibly also affect brain health. So, what does Dr. Naidoo bring to the table?

    The author is a Harvard-trained psychiatrist, a professional chef who graduated with her culinary school’s most coveted award, and a trained-and-certified nutritionist. Between those three qualifications, it’s safe to she knows her stuff when it comes to the niche that is nutritional psychiatry. And it shows.

    She takes us through the neurochemistry involved, what chemicals are consumed, made, affected, inhibited, upregulated, etc, what passes through the blood-brain barrier and what doesn’t, what part the gut really plays in its “second brain” role, and how we can leverage that—as well as mythbusting a lot of popular misconceptions about certain foods and moods.

    There’s hard science in here, but presented in quite a pop-science way, making for a very light yet informative read.

    Bottom line: if you’d like to better understand what your food is doing to your brain (and what it could be doing instead), then this is a top-tier book for you!

    Click here to check out This Is Your Brain On Food, and get to know yours!

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