Water Water Everywhere, But Which Is Best To Drink?
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Well Well Well…
In Tuesday’s newsletter, we asked you for your (health-related) opinion on drinking water—with the understanding that this may vary from place to place. We got the above-depicted, below-described, set of responses:
- About 65% said “Filtered is best”
- About 20% said “From the mains is best”
- About 8% said “Bottled is best”
- About 3% said “Distilled is best”
- About 3% said “Some other source is best”
Of those who said “some other source is best”, one clarified that their preferred source was well water.
So what does the science say?
Fluoridated water is bad for you: True or False?
False, assuming a normal level of consumption. Rather than take up more space today though, we’ll link to what we previously wrote on this topic:
You may be wondering: but what if my level of consumption is higher than normal?
Let’s quickly look at some stats:
- The maximum permitted safety level varies from place to place, but is (for example) 2mg/l in the US, 1.5mg/l in Canada & the UK.
- The minimum recommended amount also varies from place to place, but is (for example) 0.7mg/l in Canada and the US, and 1mg/l in the UK.
It doesn’t take grabbing a calculator to realize that if you drink twice as much water as someone else, then depending on where you are, water fluoridated to the minimum may give you more than the recommended maximum.
However… Those safety margins are set so much lower than the actual toxicity levels of fluoride, that it doesn’t make a difference.
For example: your writer here takes a medication that has the side effect of causing dryness of the mouth, and consequently she drinks at least 3l of water per day in a climate that could not be described as hot (except perhaps for about 2 weeks of the year). She weighs 72kg (that’s about 158 pounds), and the toxicity of fluoride (for ill symptoms, not death) is 0.2mg/kg. So, she’d need 14.4mg of fluoride, which even if the water fluoridation here were 2mg/l (it’s not; it’s lower here, but let’s go with the highest figure to make a point), would require drinking more than 7l of water faster than the body can process it.
For more about the numbers, check out:
Acute Fluoride Poisoning from a Public Water System
Bottled water is the best: True or False?
False, if we consider “best” to be “healthiest”, which in turn we consider to be “most nutrients, with highest safety”.
Bottled water generally does have higher levels of minerals than most local mains supply water does. That’s good!
But you know what else is generally has? Microplastics and nanoplastics. That’s bad!
We don’t like to be alarmist in tone; it’s not what we’re about here, but the stats on bottled water are simply not good; see:
We Are Such Stuff As Bottles Are Made Of
You may be wondering: “but what about bottled water that comes in glass bottles?”
Indeed, water that comes in glass bottles can be expected to have lower levels of plastic than water that comes in plastic bottles, for obvious reasons.
However, we invite you to consider how likely you believe it to be that the water wasn’t stored in plastic while being processed, shipped and stored, before being portioned into its final store-ready glass bottles for end-consumer use.
Distilled water is the best: True or False?
False, generally, with caveats:
Distilled water is surely the safest water anywhere, because you know that you’ve removed any nasties.
However, it’s also devoid of nutrients, because you also removed any minerals it contained. Indeed, if you use a still, you’ll be accustomed to the build-up of these minerals (generally simplified and referenced as “limescale”, but it’s a whole collection of minerals).
Furthermore, that loss of nutrients can be more than just a “something good is missing”, because having removed certain ions, that water could now potentially strip minerals from your teeth. In practice, however, you’d probably have to swill it excessively to cause this damage.
Nevertheless, if you have the misfortune of living somewhere like Flint, Michigan, then a water still may be a fair necessity of life. In other places, it can simply be useful to have in case of emergency, of course.
Here’s an example product on Amazon if you’d like to invest in a water still for such cases.
PS: distilled water is also tasteless, and is generally considered bad, tastewise, for making tea and coffee. So we really don’t recommend distilling your water unless you have a good reason to do so.
Filtered water is the best: True or False?
True for most people in most places.
Let’s put it this way: it can’t logically be worse than whatever source of water you put into it…
Provided you change the filter regularly, of course.
Otherwise, after overusing a filter, at best it won’t be working, and at worst it’ll be adding in bacteria that have multiplied in the filter over however long you left it there.
You may be wondering: can water filters remove microplastics, and can they remove minerals?
The answer in both cases is: sometimes.
- For microplastics it depends on the filter size and the microplastic size (see our previous article for details on that).
- For minerals, it depends on the filter type. Check out:
The H2O Chronicles | 5 Water Filters That Remove Minerals
One other thing to think about: while most water filtration jugs are made of PFAS-free BPA-free plastics for obvious reasons, for greater peace of mind, you might consider investing in a glass filtration jug, like this one ← this is just one example product on Amazon; by all means shop around and find one you like
Take care!
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Fall Special
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Some fall-themed advice…
It is now, nominally at least, fall. We’re going to talk about the other kind of “fall” though, the kind that results in broken hips and more.
If you’re thinking “not me; that happens to older more infirm people”, rest assured, it can and statistically probably will happen to you at some point. So, how to play the odds?
First, be robust!
We may not be able to make ourselves like children who bounce easily, but we also don’t have to crumble into dust at the slightest knock, either. There are two important ways we can start to make ourselves robust from the inside out, and they are simple: diet and exercise.
- Diet: The Bare-Bones Truth About Osteoporosis
- Exercise: Osteoporosis Exercises
“But I don’t have osteoporosis”—great! But osteoporosis is preceded by osteopenia, which is generally asymptomatic at first, and also if we’re not very careful about it, we will lose about 1% bone density per year from the age of about 35 onwards, with that rate of loss climbing sharply from the age of 50 onwards, and even more steeply in cases of untreated menopause.
So in other words, don’t take your bone strength for granted; there’s a first time for everything, and you don’t want to find out the hard (and yet, dare we say it, brittle) way.
Second, be dynamic!
Be able to fall and get up safely. If your later life is going to be a triathlon of things you need to train for now, then being able to fall and get up safely should be at the top of the list.
Being able to “deep squat” will help you a lot here, in being able to get up with minimal (or no) use of your hands. We shared a great instructional video about this last week.
It also means that the more your lower body can still take your weight while your torso is closer to the ground (without your legs buckling and collapsing, for instance), the softer and gentler you’ll hit the floor if you do fall, because the final “drop” will be from a lower height.
If at all possible, consider taking some classes of a martial art that involves safely falling—aikido is typically the softest and gentlest and is famously great for people of all ages, but judo or jujitsu will suffice if aikido isn’t available where you are. You don’t have to get a black belt (unless you want to), and any decent instructor will be happy to guide you through the basics of safely falling and then send you on your merry way, if that’s all you wanted.
The benefits of this are twofold:
- Obviously, if you fall, you will have better technique and thus be less likely to incur injury
- As you are falling, you will be less afraid, and thus less likely to tense up mid-fall (tensing up will exacerbate any falling injury)
Click here to find an aikido teacher near you (you can search by country, state, and city)
Third, be balanced!
Spending even just a few minutes each day working on your balance can go a long way.
Standing on one leg (and then the other) is a very good obvious starting point. Please, do so safely. The shower is not the best place to take up this practice, for instance. A nice safe grassy area is great. Your carpeted living room or bedroom is next-best.
Another great approach is the practice of bāguàzhǎng circle-walking.
Bāguà is tai chi’s lesser-known cousin, and those arts are two of the three main schools of wǔdāngquán. But, fear not, you don’t have to don orange robes and live atop the Wudang mountains to get what you need in this case.
To give a text-based summary: bāguàzhǎng circle-walking involves walking in a small circle, with a low center of gravity, moving one’s weight very purposefully from one leg to the other, keeping complete stability the whole time that one is (often!) on one leg.
Once you get good at this, you’ll see that this is essentially a super-enhanced version of the “standing on one leg” exercise, because it’s about keeping balance while on one leg, and/but while moving also.
Naturally, if you do get good at this, you’ll be very unlikely to fall in the first place.
Here’s a visual primer. This video will show the basic footwork, and the video that follows it (it’ll prompt you if you want to watch it) shows how to bring it up to a standard walking speed, without losing fluidity of movement:
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Fermenting Everything – by Andy Hamilton
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This is not justanother pickling book! This is, instead, what it says on the front cover, “fermenting everything”.
Ok, maybe not literally everything, but every kind of thing that can reasonably be fermented, and it’s probably a lot more things than you might think.
From habanero chutney to lacto-lemonade, aioli to kombucha, Ukrainian fermented tomatoes to kvass. We could go on, but we’d soon run out of space. You get the idea. If it’s a fermented product (food, drink, condiment) and you’ve heard of it, there’s probably a recipe in here.
All in all, this is a great way to get in your gut-healthy daily dose of fermented products!
He does also talk safety, and troubleshooting too. And so long as you have a collection of big jars and a fairly normally-furnished kitchen, you shouldn’t need any more special equipment than that, unless you decide to you your fermentation skills for making beer (which does need some extra equipment, and he offers advice on that—our advice as a health science publication is “don’t drink beer”, though).
Bottom line: with this in hand, you can create a lot of amazing foods/drinks/condiments that are not only delicious, but also great for gut health.
Click here to check out Fermenting Everything, and widen your culinary horizons!
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Sunflower Seeds vs Pumpkin Seeds – Which is Healthier?
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Our Verdict
When comparing sunflower seeds to pumpkin seeds, we picked the pumpkin seeds.
Why?
Both seeds have a good spread of vitamins and minerals, but pumpkin seeds have more. Sunflower seeds come out on top for copper and manganese, but everything else that’s present in either of them (in the category of vitamins and minerals, anyway), pumpkin seeds have more.
There is one other thing that sunflower seeds have more of than pumpkin seeds, and that’s fat. The fat is mostly of healthy varieties, so it’s not a negative factor, but it does mean that if you’re eating a calorie-controlled diet, you’ll get more bang for your buck (i.e. better micronutrient-to-calorie ratio) if you pick pumpkin seeds.
If you’re not concerned about fat/calories, and/or you actively want to consume more of those, then sunflower seeds are still a fine choice.
When it comes down to it, a diverse diet is best, so enjoying both might be the best option of all.
Want to get some?
We don’t sell them, but here for your convenience are example products on Amazon:
Sunflower Seeds | Pumpkin Seeds
Enjoy!
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Cupping: How It Works (And How It Doesn’t)
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.
Good Health By The Cup?
In Tuesday’s newsletter, we asked you for your opinion of cupping (the medical practice), and got the above-depicted, below-described, set of responses:
- About 40% said “It may help by improving circulation and stimulating the immune system”
- About 26% said “I have never heard of the medical practice of cupping before this”
- About 19% said “It is pseudoscience and/or placebo at best, but probably not harmful
- About 9% said “It is a good, evidence-based practice that removes toxins and stimulates health”
- About 6% said “It is a dangerous practice that often causes harm to people who need medical help”
So what does the science say?
First, a quick note for those unfamiliar with cupping: it is the practice of placing a warmed cup on the skin (open side of the cup against the skin). As the warm air inside cools, it reduces the interior air pressure, which means the cup is now (quite literally) a suction cup. This pulls the skin up into the cup a little. The end result is visually, and physiologically, the same process as what happens if someone places the nozzle of a vacuum cleaner against their skin. For that matter, there are alternative versions that simply use a pump-based suction system, instead of heated cups—but the heated cups are most traditional and seem to be most popular. See also:
National Center for Complementary and Integrative Health | Cupping
It is a dangerous practice that often causes harm to people who need medical help: True or False?
False, for any practical purposes.
- Directly, it can (and usually does) cause minor superficial harm, much like many medical treatments, wherein the benefits are considered to outweigh the harm, justifying the treatment. In the case of cupping, the minor harm is usually a little bruising, but there are other risks; see the link we gave just above.
- Indirectly, it could cause harm by emboldening a person to neglect a more impactful treatment for their ailment.
But, there’s nothing for cupping akin to the “the most common cause of death is when someone gets a vertebral artery fatally severed” of chiropractic, for example.
It is a good, evidence-based practice that removes toxins and stimulates health: True or False?
True and False in different parts. This one’s on us; we included four claims in one short line. But let’s look at them individually:
- Is it good? Well, those who like it, like it. It legitimately has some mild health benefits, and its potential for harm is quite small. We’d call this a modest good, but good nonetheless.
- Is it evidence-based? Somewhat, albeit weakly; there are some papers supporting its modest health claims, although the research is mostly only published in journals of alternative medicine, and any we found were in journals that have been described by scientists as pseudoscientific.
- Does it remove toxins? Not directly, at least. There is also a version that involves making a small hole in the skin before applying the cup, the better to draw out the toxins (called “wet cupping”). This might seem a little medieval, but this is because it is from early medieval times (wet cupping’s first recorded use being in the early 7th century). However, the body’s response to being poked, pierced, sucked, etc is to produce antibodies, and they will do their best to remove toxins. So, indirectly, there’s an argument.
- Does it stimulate health? Yes! We’ll come to that shortly. But first…
It is pseudoscience and/or placebo at best, but probably not harmful: True or False?
True in that its traditionally-proposed mechanism of action is a pseudoscience and placebo almost certainly plays a strong part, and also in that it’s generally not harmful.
On it being a pseudoscience: we’ve talked about this before, but it bears repeating; just because something’s proposed mechanism of action is pseudoscience, doesn’t necessarily mean it doesn’t work by some other mechanism of action. If you tell a small child that “eating the rainbow” will improve their health, and they believe this is some sort of magical rainbow power imbuing them with health, then the mechanism of action that they believe in is a pseudoscience, but eating a variety of colorful fruit and vegetables will still be healthy.
In the case of cupping, its proposed mechanism of action has to do withbalancing qi, yin and yang, etc (for which scientific evidence does not exist), in combination with acupuncture lore (for which some limited weak scientific evidence exists). On balancing qi, yin and yang etc, this is a lot like Europe’s historically popular humorism, which was based on the idea of balancing the four humors (blood, yellow bile, black bile, phlegm). Needless to say, humorism was not only a pseudoscience, but also eventually actively disproved with the advent of germ theory and modern medicine. Cupping therapy is not more scientifically based than humorism.
On the placebo side of things, there probably is a little more to it than that; much like with acupuncture, a lot of it may be a combination of placebo and using counter-irritation, a nerve-tricking method to use pain to reduce pain (much like pressing with one’s nail next to an insect bite).
Here’s one of the few studies we found that’s in what looks, at a glance, to be a reputable journal:
Cupping therapy and chronic back pain: systematic review and meta-analysis
It may help by improving circulation and stimulating the immune system: True or False?
True! It will improve local circulation by forcing blood into the area, and stimulate the immune system by giving it a perceived threat to fight.
Again, this can be achieved by many other means; acupuncture (or just “dry needling”, which is similar but without the traditional lore), a cold shower, and/or exercise (and for that matter, sex—which combines exercise, physiological arousal, and usually also foreign bodies to respond to) are all options that can improve circulation and stimulate the immune system.
You can read more about using some of these sorts of tricks for improving health in very well-evidenced, robustly scientific ways here:
The Stress Prescription (Against Aging!)
Take care!
Don’t Forget…
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Metabolical – by Dr. Robert Lustig
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The premise of this book itself is not novel: processed food is bad, food giants lie to us, and eating better makes us less prone to disease (especially metabolic disease).
What this book does offer that’s less commonly found is a comprehensive guide, a walkthrough of each relevant what and why and how, with plenty of good science and practical real-world examples.
In terms of unique selling points, perhaps the greatest strength of this book is its focus on two things in particular that affect many aspects of health: looking after our liver, and looking after our gut.
The style is… A little dramatic perhaps, but that’s just the style; there’s no hyperbole, he is stating well-established scientific facts.
Bottom line: very much of chronic disease would be a lot less diseasey if we all ate with these aspects of our health in mind. This book’s a comprehensive guide to that.
Click here to check out Metabolical, and let food be thy medicine!
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Low-Dose Aspirin & Anemia
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We recently wrote about…
How To Survive A Heart Attack When You’re Alone
…and one of the items was “if you have aspirin readily available, then after calling an ambulance is the time to take it—but don’t exert yourself trying to find some”.
But what of aspirin as a preventative?
Many people take low-dose aspirin daily as a way to reduce the risk of atherothrombosis specifically (and thus, indirectly, they hope to reduce the risk of heart attacks).
The science of how helpful this is both clear and complicated—that is to say, the stats are not ambiguous*, but there are complicating factors of which many people are unaware.
*it will reduce the overall risk of cardiovascular events, but will not affect CVD mortality; in other words, it may improve your recovery from minor cardiac events, but is not likely to save you from major ones.
And also, it has unwanted side effects that can constitute a more relevant threat for many people. We’ll share more on that at the end of today’s article, but first…
A newly identified threat from daily aspirin use
A large (n=313,508) study of older adults (median age 73) were sorted into those who used low-dose aspirin as a preventative, and those who did not.
The primary outcome was incidence of anemia sufficient to require treatment, and the secondary outcome was major bleeding. And, at least 1 in 5 of those who experienced anemia also experienced bleeding.
The bleeding issue was not “newly identified” and will not surprise many people; after all, the very reason that aspirin is taken as a CVD preventative is for its anti-clotting property of allowing blood to flow more freely.
The anemia, however, has been getting increasing scientific scrutiny lately, after long going unnoticed in the wild. Given that anemia also gives the symptom “dizziness”, this is also a significant threat for increasing the incidence of falls in the older population, too, which can of course lead to serious complications and ultimately death.
Here’s the paper itself:
Want to know more?
As promised, here’s what we wrote previously about some of aspirin’s other risks:
Aspirin, CVD Risk, & Potential Counter-Risks
Take care!
Don’t Forget…
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Learn to Age Gracefully
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