It’s Not Fantastic To Be Plastic

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We Are Such Stuff As Bottles Are Made Of

We’ve written before about PFAS, often found in non-stick coatings and the like:

PFAS Exposure & Cancer: The Numbers Are High

Today we’re going to be talking about microplastics & nanoplastics!

What are microplastics and nanoplastics?

Firstly, they’renot just the now-banned plastic microbeads that have seen some use is toiletries (although those are classified as microplastics too).

Many are much smaller than that, and if they get smaller than a thousandth of a millimeter, then they get the additional classification of “nanoplastic”.

In other words: not something that can be filtered even if you were to use a single-micron filter. The microplastics would still get through, for example:

Scientists find about a quarter million invisible nanoplastic particles in a liter of bottled water

And unfortunately, that’s bad:

❝What’s disturbing is that small particles can appear in different organs and may cross membranes that they aren’t meant to cross, such as the blood-brain barrier❞

~ Dr. Zoie Diana

Note: they’re crossing the same blood-brain barrier that many of our nutrients and neurochemicals are too big to cross.

These microplastics are also being found in arterial plaque

What makes arterial plaque bad for the health is precisely its plasticity (the arterial walls themselves are elastic), so you most certainly do not want actual plastic being used as part of the cement that shouldn’t even be lining your arteries in the first place:

Microplastics found in artery plaque linked with higher risk of heart attack, stroke and death

❝In this study, patients with carotid artery plaque in which MNPs were detected had a higher risk of a composite of myocardial infarction, stroke, or death from any cause at 34 months of follow-up than those in whom MNPs were not detected❞

~ Dr. Raffaele Marfella et al.

(MNP = Micro/Nanoplastics)

Source: Microplastics and Nanoplastics in Atheromas and Cardiovascular Events

We don’t know how bad this is yet

There are various ways this might not be as bad as it looks (the results may not be repeated, the samples could have been compromised, etc), but also, perhaps cynically but nevertheless honestly, it could also be worse than we know yet—only more experiments being done will tell us which.

In the meantime, here’s a rundown of what we do and don’t know:

Study links microplastics with human health problems—but there’s still a lot we don’t know

Take care!

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  • Quick Healthy Recipe Ideas

    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

    “It was superb !! Just loved that healthy recipe !!! I would love to see one of those every day, if possible !! Keep up the fabulous work !!! ”

    We’re glad you enjoyed! We can’t promise a recipe every day, but here’s one just for you:

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  • The Whole Heart Solution – by Dr. Joel Kahn

    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.

    If there’s a single central focus here is on the evidence for including a lot of plants in our diet, and in particular, certain ones that are particularly impactful (positively) for our health. However, it’s not all about diet; Dr. Kahn also discusses (as the subtitle suggests) making the most of every safe, useful tool available for us for good heart health. Including, where appropriate, drugs and surgery, but definitely with a preference to avoid their necessity with lifestyle adjustments and regular pre-emptive testing of various kinds.

    Indeed, the promised “75 low-cost things you can do right away” are mostly lifestyle adjustments, and as well as the dietary tips, they include non-dietary things such as opening your windows and walking barefoot, for example—we’ll learn tips relating to all areas of life, in fact.

    An interesting note on diet, though: he also talks about how all requests for reimbursement for Medicare and Medicaid services are evaluated with regard to whether they are appropriate, and of all the programs for intensive cardiac rehabilitation that have been requested, only two have been approved (at time of going to press, at least). Both are plan-based programs, of which, one is the dietary approach described in this book. Bearing in mind that Medicare and Medicate have a mandate to save money, they will only approve a program that results in costing them less in hospital care and prescriptions. Which means that their interests are aligned with yours, in this case!

    The style is enthusiastic pop science, that is to say, it is written with extreme conviction—there is plenty of science cited to back it up, of course, but certainly this is not an indifferent book.

    Bottom line: if you’d like to improve your heart health, this book is a top-tier one-stop solution (if you implement its contents, anyway!)

    Click here to check out the Whole Heart Solution, and live wholeheartedly!

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  • Self-Compassion – by Dr. Kristin Neff

    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.

    A lot of people struggle with self-esteem, and depending on one’s surrounding culture, it can even seem socially obligatory to be constantly valuing oneself highly (or else, who else will if we do not?). But, as Dr. Neff points out, there’s an inherent problem with reinforcing for oneself even a positive message like “I am smart, strong, and capable!” because sometimes all of us have moments of being stupid, weak, and incapable (occasionally all three at once!), which places us in a position of having to choose between self-deceit and self-deprecation, neither of which are good.

    Instead, Dr. Neff advocates for self-compassion, for treating oneself as one (hopefully) would a loved one—seeing their/our mistakes, weaknesses, failures, and loving them/ourself anyway.

    She does not, however, argue that we should accept just anything from ourselves uncritically, but rather, we identify our mistakes, learn, grow, and progress. So not “I should have known better!”, nor even “How was I supposed to know?!”, but rather, “Now I have learned a thing”.

    The style of the book is quite personal, as though having a heart-to-heart over a hot drink perhaps, but the format is organized and progresses naturally from one idea to the next, taking the reader to where we need to be.

    Bottom line: if you have trouble with self-esteem (as most people do), then that’s a trap that there is a way out of, and it doesn’t require being perfect or lowering one’s standards, just being kinder to oneself along the way—and this book can help inculcate that.

    Click here to check out Self-Compassion, and indeed be kind to yourself!

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  • Undo It! – by Dr. Dean Ornish & Anne Ornish

    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 course, no lifestyle changes will magically undo Type 1 Diabetes or Cerebral Palsy. But for many chronic diseases, a lot can be done. The question is,how does one book cover them all?

    As authors Dr. Dean Ornish and Anne Ornish explain, very many chronic diseases are exacerbated, or outright caused, by the same factors:

    • Gene expression
    • Inflammation
    • Oxidative stress

    This goes for chronic disease from heart disease to type 2 diabetes to cancer and many autoimmune diseases.

    We cannot change our genes, but we can change our gene expression (the authors explain how). And certainly, we can control inflammation and oxidative stress.

    Then first part of the book is given over to dietary considerations. If you’re a regular 10almonds reader, you won’t be too surprised at their recommendations, but you may enjoy the 70 recipes offered.

    Attention is also given to exercising in ways optimized to beat chronic disease, and to other lifestyle factors.

    Limiting stress is important, but the authors go further when it comes to psychological and sociological factors. Specifically, what matters most to health, when it comes to intimacy and community.

    Bottom line: this is a very good guide to a comprehensive lifestyle overhaul, especially if something recently has given you cause to think “oh wow, I should really do more to avoid xyz disease”.

    Click here to check out Undo It, and better yet, prevent it in advance!

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  • Better Than BMI

    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.

    BMI is a very flawed system, and there are several more useful ways of measuring our bodies. Let’s take a look at them!

    What’s wrong with BMI?

    Oof, what isn’t wrong with BMI?

    In short, it was developed as a demographic-based tool to specifically chart the weight-related health of working-age European white men a little under 200 years ago.

    This means that if you are, perchance, not a working-age European white man in 1830 or so, then it’s not so useful. It’d be like first establishing height norms based on NBA basketball players, and then applying it to the general population, and thus coming to the conclusion that someone who is 6’2″ is very short.

    In long, we did a deep-dive into it here, and in particular what things go dangerously wrong when it’s applied to women, non-white people, athletic people, pregnant people, people under 16 or over 65 and more:

    When BMI Doesn’t Quite Measure Up

    What we usually recommend instead

    For heart disease risk and diabetes risk both, waist circumference is a much more universally reliable indicator. And since those two things tend to affect a lot of other health risks, it becomes an excellent starting point for being aware of many aspects of health.

    Pregnancy will still throw off waist circumference a little (measure below the bump, not around it!), but it will nevertheless be more helpful than BMI even then, as it becomes necessary to just increase the numbers a little, according to gestational month and any confounding factors e.g. twins, triplets, etc. Ask your obstetrician about this, as it’s beyond the scope of our article today!

    As to what’s considered a risk:
    • Waist circumference of more than 35 inches for women
    • Waist circumference of more than 40 inches for men

    These numbers are considered applicable across demographics of age, ethnicity, and lifestyle.

    Source: Waist circumference as a vital sign in clinical practice: a Consensus Statement from the IAS and ICCR Working Group on Visceral Obesity

    Bonus extra measurement based on the above

    Important also is waist to hip ratio.

    How to calculate it:

    1. measure your waist circumference
    2. measure your hip circumference
    3. divide the first measurement by the second one

    Because it’s a ratio, it doesn’t matter what units you use (e.g. inches, cm, etc) so long as you use the same units for both measurements.

    The World Health Organization offers the following chart:

    Health riskWomenMen
    Low0.80 or lower0.95 or lower
    Moderate0.81–0.850.96–1.0
    High0.86 or higher1.1 or higher

    Source: Waist Circumference and Waist-Hip Ratio: Report of a WHO Expert Consultation

    This is especially relevant for cardiovascular disease risk:

    Waist circumference and waist-to-hip ratio as predictors of cardiovascular events: meta-regression analysis of prospective studies

    …and also holds true for all-cause mortality:

    Waist-Hip-Ratio as a Predictor of All-Cause Mortality in High-Functioning Older Adults

    An ancient contender that’s still more useful than BMI

    Remember Archimedes? The (perhaps apocryphal) story of his “Eureka” moment in the bathtub when he realized that water displacement could be used to measure the volume of an irregular shape?

    Just like Archimedes (who, the story goes, had been hired to determine the composition of a crown that might or might not have been pure gold), we can use this method to determine body composition, because we have references for how much a given volume of a given substance will weigh, so combing what we know about a body’s weight and volume will tell us about its composition in ways that neither metric could give us alone.

    Indeed, it’s one of the commonly-mentioned flaws of BMI that muscle weighs more than fat, and Archimedes’ method not only avoids that problem, but also, actually turns that knowledge (muscle weighs more than fat) to our advantage.

    It’s called “hydrostatic weighing” now:

    Hydrostatic Weighing: Evaluation of body composition parameters using various diagnostic methods: A meta analysis study

    You may be wondering: what about bones? Or internal organs?

    The fact is that those are slightly confounding factors that do get in the way of a truly accurate analysis, but the variation in how much one person’s skeleton weighs vs another’s, or one person’s set of organs weigh than another’s, is too small to make an important difference to the health implications.

    Lastly…

    Hydrostatic weighing isn’t the only way to work out how much of our body is made of fat; if you have for example a smart scale at home (like this one) that tells you your body fat percentage, that is an estimate based on bioelectrical impedance analysis.

    It’s less accurate than the hydrostatic method, but easier to do at home!

    As to what percentages are “best”, healthy body fat percentages are (assuming normal hormones) generally considered to be in the range of 20–25% for women and 15–20% for men.

    You can read more about this here:

    Is A Visible Six-Pack Obtainable Regardless Of Genetic Predisposition?

    Take care!

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  • What Are The “Bright Lines” Of Bright Line Eating?

    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 Dr. Susan Thompson. She’s a cognitive neuroscientist who has turned her hand to helping people to lose weight and maintain it at a lower level, using psychology to combat overeating. She is the founder of “Bright Line Eating”.

    We’ll say up front: it’s not without some controversy, and we’ll address that as we go, but we do believe the ideas are worth examining, and then we can apply them or not as befits our personal lives.

    What does she want us to know?

    Bright Line Eating’s general goal

    Dr. Thompson’s mission statement is to help people be “happy, thin, and free”.

    You will note that this presupposes thinness as desirable, and presumes it to be healthy, which frankly, it’s not for everyone. Indeed, for people over a certain age, having a BMI that’s slightly into the “overweight” category is a protective factor against mortality (which is partly a flaw of the BMI system, but is an interesting observation nonetheless):

    When BMI Doesn’t Quite Measure Up

    Nevertheless, Dr. Thompson makes the case for the three items (happy, thin, free) coming together, which means that any miserable or unhealthy thinness is not what the approach is valuing, since it is important for “thin” to be bookended by “happy” and “free”.

    What are these “bright lines”?

    Bright Line Eating comes with 4 rules:

    1. No flour (no, not even wholegrain flour; enjoy whole grains themselves yes, but flour, no)
    2. No sugar (and as a tag-along to this, no alcohol) (sugars naturally found in whole foods, e.g. the sugar in an apple if eating an apple, is ok, but other kinds are not, e.g. foods with apple juice concentrate as a sweetener; no “natural raw cane sugar” etc is not allowed either; despite the name, it certainly doesn’t grow on the plant like that)
    3. No snacking, just three meals per day(not even eating the ingredients while cooking—which also means no taste-testing while cooking)
    4. Weigh all your food (have fun in restaurants—but more seriously, the idea here is to plan each day’s 3 meals to deliver a healthy macronutrient balance and a capped calorie total).

    You may be thinking: “that sounds dismal, and not at all bright and cheerful, and certainly not happy and free”

    The name comes from the idea that these rules are lines that one does not cross. They are “bright” lines because they should be observed with a bright and cheery demeanour, for they are the rules that, Dr. Thompson says, will make you “happy, thin, and free”.

    You will note that this is completely in opposition to the expert opinion we hosted last week:

    What Flexible Dieting Really Means

    Dr. Thompson’s position on “freedom” is that Bright Line Eating is “very structured and takes a liberating stand against moderation”

    Which may sound a bit of an oxymoron—is she really saying that we are going to be made free from freedom?

    But there is some logic to it, and it’s about the freedom from having to make many food-related decisions at times when we’re likely to make bad ones:

    Where does the psychology come in?

    Dr. Thompson’s position is that willpower is a finite, expendable resource, and therefore we should use it judiciously.

    So, much like Steve Jobs famously wore the same clothes every day because he had enough decisions to make later in the day that he didn’t want unnecessary extra decisions to make… Bright Line Eating proposes that we make certain clear decisions up front about our eating, so then we don’t have to make so many decisions (and potentially the wrong decisions) later when hungry.

    You may be wondering: ”doesn’t sticking to what we decided still require willpower?”

    And… Potentially. But the key here is shutting down self-negotiation.

    Without clear lines drawn in advance, one must decide, “shall I have this cake or not?”, perhaps reflecting on the pros and cons, the context of the situation, the kind of day we’re having, how hungry we are, what else there is available to eat, what else we have eaten already, etc etc.

    In short, there are lots of opportunities to rationalize the decision to eat the cake.

    With clear lines drawn in advance, one must decide, “shall I have this cake or not?” and the answer is “no”.

    So while sticking to that pre-decided “no” still may require some willpower, it no longer comes with a slew of tempting opportunities to rationalize a “yes”.

    Which means a much greater success rate, both in adherence and outcomes. Here’s an 8-week interventional study and 2-year follow-up:

    Bright Line Eating | Research Publications

    Counterpoint: pick your own “bright lines”

    Dr. Thompson is very keen on her 4 rules that have worked for her and many people, but she recognizes that they may not be a perfect fit for everyone.

    So, it is possible to pick and choose our own “bright lines”; it is after all a dietary approach, not a religion. Here’s her response to someone who adopted the first 3 rules, but not the 4th:

    Bright Lines as Guidelines for Weight Loss

    The most important thing for Bright Line Eating, therefore, is perhaps the action of making clear decisions in advance and sticking to them, rather than seat-of-the-pantsing our diet, and with it, our health.

    Want to know more from Dr. Thompson?

    You might like her book, which we reviewed a while ago:

    Bright Line Eating – by Dr. Susan Peirce Thompson

    Enjoy!

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