Water Fluoridation, Atheroma, & More
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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!
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 watched a documentary recently on Fluoride in our drinking water & the dangers of it. Why are we poisoning our water?❞
This is a great question, and it certainly is controversial. It sounds like the documentary you watched was predominantly or entirely negative, but there’s a lot of science to back both sides of this, and it’s not even that the science is contradictory (it’s not). It’s that what differs is people’s opinions about whether benefiting one thing is worth creating a risk to another, and that means looking at:
- What is the risk associated with taking no action (error of omission)?
- What is the risk associated with taking an action (error of commission)?
The whole topic is worth a main feature, but to summarize a few key points:
- Water fluoridation is considered good for the prevention of dental cavities
- Water fluoridation aims to deliver fluoride and doses far below dangerous levels
- This requires working on consumer averages, though
- ”Where do we put the safety margins?” is to some extent a subjective question, in terms of trading off one aspect of health for another
- Too much fluoride can also be bad for the teeth (at least cosmetically, creating little white* spots)
- Detractors of fluoride tend to mostly be worried about neurological harm
- However, the doses in public water supplies are almost certainly far below the levels required to cause this harm.
- That said, again this is working on consumer averages, though.
- However, the doses in public water supplies are almost certainly far below the levels required to cause this harm.
- A good guide is: watch your teeth! Those white* spots will be “the canary in the coal mine” of more serious harm that could potentially come from higher levels due to overconsumption of fluorine.
*Teeth are not supposed to be pure white. The “Hollywood smile” is a lie. Teeth are supposed to be a slightly off-white, ivory color. Anything whiter than that is adding something else that shouldn’t be there, or stripping something off that should be there.
❝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:
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High Histamine Foods To Avoid (And Low Histamine Foods To Eat Instead)
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Nour Zibdeh is an Integrative and Functional Dietician, and she helps people overcome food intolerances. Today, it’s about getting rid of the underdiagnosed condition that is histamine intolerance, by first eliminating the triggers, and then not getting stuck on the low-histamine diet
The recommendations
High histamine foods to avoid include:
- Alcohol (all types)
- Fermented foods—normally great for the gut, but bad in this case
- That includes most cheeses and yogurts
- Aged, cured, or otherwise preserved meat
- Some plants, e.g. tomato, spinach, eggplant, banana, avocado. Again, normally all great, but not in this case.
Low histamine foods to eat include:
- Fruits and vegetables not mentioned above
- Minimally processed meat and fish, either fresh from the butcher/fishmonger, or frozen (not from the chilled food section of the supermarket), and eaten the same day they were purchased or defrosted, because otherwise histamine builds up over time (and quite quickly)
- Grains, but she recommends skipping gluten, given the high likelihood of a comorbid gluten intolerance. So instead she recommends for example quinoa, oats, rice, buckwheat, millet, etc.
For more about these (and more examples), as well as how to then phase safely off the low histamine diet, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Further reading
Food intolerances often gang up on a person (i.e., comorbidity is high), so you might also like to read about:
- Gluten: What’s The Truth?
- Fiber For FODMAP-Avoiders
- Foods For Managing Hypothyroidism (incl. Hashimoto’s)
- Crohn’s, Food Intolerances, & More
Take care!
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It’s OK That You’re Not OK – by Megan Devine
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Firstly, be aware: this is not a cheerful book. If you’re looking for something to life your mood after a loss, it will not be this.
What, then, will you find? A reminder that grief is also the final translation of love, and not necessarily something to be put aside as quickly as possible—or even ever, if we don’t want to.
Too often, society (and even therapists) will correctly note that no two instances of grief are the same (after all, no two people are, so definitely no two relationships are, so how could two instances of grief be?), but will still expect that if most people can move on quickly from most losses, that you should too, and that if you don’t then there is something pathological at hand that needs fixing.
Part one of the book covers this (and more) in a lot of detail; critics have called it a diatribe against the current status quo in the field of grief.
Part two of the book is about “what to do with your grief”, and addresses the reality of grief, how (and why) to stay alive when not doing so feels like a compelling option, dealing with grief’s physical side effects, and calming your mind in ways that actually work (without trying to sweep your grief under a rug).
Parts three and four are more about community—how to navigate the likely unhelpful efforts a lot of people may make in the early days, and when it comes to those people who can and will actually be a support, how to help them to help you.
In the category of criticism, she also plugs her own (paid, subscription-based) online community, which feels a little mercenary, especially as while community definitely can indeed help, the prospect of being promptly exiled from it if you stop paying, doesn’t.
Bottom line: if you have experienced grief and felt like moving on was the right thing to do, then this book isn’t the one for you. If, on the other hand, your grief feels more like something you will carry just as you carry the love you feel for them, then you’ll find a lot about that here.
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Burn – by Dr. Herman Pontzer
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We all have reasons to want to focus on our metabolism. Speed it up to burn more fat; slow it down to live longer. Tweak it for more energy in the day. But what actually is it, and how does it work?
Dr. Herman Pontzer presents a very useful overview of not just what our metabolism is and how it works, but also why.
The style of the book is casual, but doesn’t skimp on the science. Whether we are getting campfire stories of Hadza hunter-gatherers, or an explanation of the use of hydrogen isotopes in metabolic research, Dr. Pontzer keeps things easy-reading.
One of the main premises of the book is that our caloric expenditure is not easy to change—if we exercise more, our bodies will cut back somewhere else. After all, the body uses energy for a lot more than just moving. With this in mind, Dr. Pontzer makes the science-based case for focusing more on diet than exercise if weight management is our goal.
In short, if you’d like your metabolism to be a lot less mysterious, this book can help render a lot of science a lot more comprehensible!
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Which Gadgets Help, & Which Are A Waste Of Time?
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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’m a 67- year old yoga teacher and runner. A lifelong runner, I started long distance running when I was 58. One of my friends loves rucking? I recently bought a rucking vest. Your thoughts? Any risks?
As a perk of my yoga instructor job I get cryotherapy, red light therapy, infrared sauna, and Normatec boots for a nominal fee. Even though they are almost free, I don’t take advantage of them as I can’t find evidence of their value and don’t want to waste my time. Do you recommend any of them?❞On rucking and rucking vests
First, for any unfamiliar, this is about walking/running/exercising in general, with a weighted backpack or weight vest.
As for whether this is beneficial, it depends on your goals. Once upon a very long time ago when this writer was a soldier, it was vitally important to for me be able to [fall from the sky and then] run about 2km carrying a certain (hefty) amount of weight and still be able to fight at the other end of it, or else I would die. Thus, between deployments, I’d often carry a sturdy rucksack with concrete slabs in it, to keep myself accustomed to that burden (funny story: someone once tried to steal that when I had put it down while doing something—the would-be thief fell over instantly and then ran away empty-handed). And, here’s the thing: this kind of training did for me what I needed it to do for me. As a 67-year-old yoga teacher, your needs are probably very different.
A common reason to use weight vests is in an effort against osteoporosis, but the evidence is lacking (or very weak, at best), as we wrote about a while back:
Weight Vests Against Osteoporosis: Do They Really Build Bone?
With regard to risks… Let’s put it this way: my old regiment, in addition to the usual soldierly problems like hearing damage and PTSD, has quite a reputation for producing veterans with spinal compression injuries. And that’s entirely because of the whole “running with a large amount of weight strapped to us” thing. So, you probably don’t want that.
If you are going to do that though, then:
- a weight best is a lot better than a backpack (better distribution of weight)
- start with low weight and work up, and don’t push your limits
We’re not the boss of you, so by all means do as you see fit, but unless there’s a special reason why being able to run with a heavy weight is important to you, then running with a light weight is already more than good enough.
About those job perks
Again, of course, it depends on what you hope to get out of them, but in some cases there is a lot of evidence for benefit.
On cryotherapy: Ice Baths: To Dip Or Not To Dip? ← there are definite benefits for most people!
On red light therapy: Red Light, Go! Casting Yourself In A Healthier Light ← there are some caveats re people who should not do this or at least should be very wary, but for most people, this does a lot of good, and is very well-evidenced to be beneficial
On infrared saunas: we’re unaware of any special evidence in favor of these. However, traditional saunas have plenty of well-evidenced benefits: Saunas: Health Benefits (& Caveats)
On Normatec boots: for the unfamiliar, this is a brand name for compression technology. Again, it depends on what you want to get out of it, though. If you are in good health, then what it’s generally being advertised for is to prevent/reduce exercise-induced muscle damage caused by the stress that endurance training can place on skeletal muscle. Just one problem—it doesn’t seem to work:
❝Athletes attempt to aid their recovery in various ways, one of which is through compression. Dynamic compression consists of intermittent pneumatic compression (IPC) devices, such as the NormaTec Recovery System and Recovery Pump
Clinical Question: What are the effects of IPC on the reduction of Exercise-Induced Muscle Damage (EIMD) in endurance athletes following prolonged exercise? Summary of Key Findings: The current literature was searched to identify the effects of IPC, and 3 studies were selected: 2 randomized controlled trials and 1 randomized cross-over study. Two studies investigated the effect of IPC on delayed onset muscle soreness and plasma creatine kinase in ultramarathoners. The other looked at the impact of IPC on delayed onset muscle soreness in marathoners, ultramarathoners, triathletes, and cyclists.
All studies concluded IPC was not an effective means of improving the reduction of EIMD in endurance-trained athletes.❞
However! If you have lipedema and/or lymphedema and want to manage that, then compression gear may help:
Take care!
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How To Avoid Age-Related Macular Degeneration
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Avoiding Age-Related Macular Degeneration
Eye problems can strike at any age, but as we get older, it becomes a lot more likely. In particular, age-related macular degeneration is, as the name suggests, an age-bound disease.
Is there no escaping it, then?
The risk factors for age-related macular degeneration are as follows:
- Being over the age of 55 (can’t do much about this one)
- Being over the age of 65 (risk climbs sharply now)
- Having a genetic predisposition (can’t do much about this one)
- Having high cholesterol (this one we can tackle)
- Having cardiovascular disease (this one we can tackle)
- Smoking (so, just don’t)
Genes predispose; they don’t predetermine. Or to put it another way: genes load the gun, but lifestyle pulls the trigger.
Preventative interventions against age-related macular degeneration
Prevention is better than a cure in general, and this especially goes for things like age-related macular degeneration, because the most common form of it has no known cure.
So first, look after your heart (because your heart feeds your eyes).
See also: The Mediterranean Diet
Next, eat to feed your eyes specifically. There’s a lot of research to show that lutein helps avoid age-related diseases in the eyes and the rest of the brain, too:
See also: Brain Food? The Eyes Have It
Do supplements help?
They can! There was a multiple-part landmark study by the National Eye Institute, a formula was developed that reduced the 5-year risk of intermediate disease progressing to late disease by 25–30%. It also reduced the risk of vision loss by 19%.
You can read about both parts of the study here:
Age-Related Eye Disease Studies (AREDS/AREDS2): major findings
As you can see, an improvement was made between the initial study and the second one, by replacing beta-carotene with lutein and zeaxanthin.
The AREDS2 formula contains:
- 500 mg vitamin C
- 180 mg vitamin E
- 80 mg zinc
- 10 mg lutein
- 2 mg copper
You can learn more about these supplements, and where to get them, here on the NEI’s corner of the official NIH website:
AREDS 2 Supplements for Age-Related Macular Degeneration
Take care of yourself!
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Staying Healthy and Active After 60
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Questions and Answers 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!
This newsletter has been growing a lot lately, and so have the questions/requests, and we love that! 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
Q: How to be your best self after 60: Self motivation / Avoiding or limiting salt, sugar & alcohol: Alternatives / Ways to sneak in more movements/exercise
…and, from a different subscriber…
Q: Inflammation & over 60 weight loss. Thanks!
Here are some of our greatest hits on those topics:
- Where Nutrition Meets Habits ← focusing on food that’s all three of: healthy + easy + cheap
- How To Keep On Keeping On ← exercise tips for when the motivation wanes
- Keep Inflammation At Bay ← science-based tips and advice
Also, while we’ve recommended a couple of books on stopping (or reducing) drinking, we’ve not done a main feature on that, so we definitely will one of these days!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
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