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:

Q&A: Water Fluoridation

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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  • The Telomere Effect – by Dr. Elizabeth Blackburn and Dr. Elissa Epel

    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.

    Telomeres can be pretty mystifying to the person with a lay interest in longevity. Beyond “they’re the little caps that sit on the end of your DNA, and longer is better, and when they get short, damage occurs, and aging”, how do they fit into the big picture?

    Dr. Elizabeth Blackburn and Dr. Elissa Epel excel at explaining the marvelous world of telomeres…

    • how they work
    • what affects them
    • and how and why

    …and the extent to which changes are or aren’t reversible.

    For some of us, the ship has sailed on avoiding a lot of early-life damage to our telomeres, and now we have a damage-mitigation task ahead. That’s where the authors get practical.

    Indeed, the whole third part of the book is titled “Help Your Body Protect Its Cells“, and indeed covers not just “from now on” protection, but undoing some of the damage already done (yes, telomeres can be lengthened—it gets harder as we get older, but absolutely can be done).

    In short: if you’d like to avoid further damage to your telomeres where possible, and reverse some of the damage done already, this book will set you on the right track.

    Order your copy of The Telomere Effect from Amazon today!

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  • The SharpBrains Guide to Brain Fitness – by Alvaro Fernandez et al.

    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.

    We say “et al.” in the by-line, because this one has a flock of authors, including Dr. Pascale Michelon, Dr. Sandra Bond Chapman, Dr. Elkehon Goldberg, and various others if we include the foreword, introduction, etc.

    This is relevant, because those who contributed to the meat of the book (i.e., those listed above), it makes the work a lot more scientifically reliable; one skilled science writer might make a mistake; it’s much less likely to make it through to publication when there are a bevy of doctors in the mix, each staking their reputation on the book’s content, and thus having a vested interest in checking each other’s work as well as their own.

    As for what this multidisciplinary team have to offer? The book covers such things as:

    • how the brain works (especially the possibilities of neuroplasticity), and what that means for such things as memory and attention
    • being “a coach not a patient”; i.e., being active rather than passive in one’s approach to brain health
    • the relevance of physical exercise, how much, and what kind
    • the relevance (and limitations) of diet choices for brain health
    • the relevance of such things as learning new languages and musical training
    • the relevance of social engagement, and how some (but not all) social engagement can boost cognition
    • methods for managing stress and building resilience to same (critical for maintaining a healthy brain)
    • “cross-fit for your brain”, that is to say, a multi-vector collection of tools to explore, ranging from meditation to CBT to biofeedback and more.

    The style is pop-science without being sensationalist, just communicating ideas clearly, with enough padding to feel casual, and not like a dense read. Importantly, it’s also practical and applicable too, which is something we always look for here.

    Bottom line: if you’d like to be given a good overview of what things work (and how much they can be expected to work), along with a good framework to put that knowledge into practice, then this is a great book for you.

    Click here to check out The SharpBrains Guide to Brain Fitness, and optimize your brain health and performance!

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  • Lower Your Cortisol! (Here’s Why & How)

    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.

    Cortisol, or “the stress hormone” to its friends, is produced by your adrenal glands, and is generally considered “not fun”.

    It does serve a purpose, of course, just like almost everything else our body does. It serves as part of the “fight or flight” response, for example, and helps you to wake up in the morning.

    While you do need some cortisol (and a small percentage of people have too little), most of us have too much.

    Why? Simply put, modern life is not what 200,000* years of human evolution prepared us for:

    *the 200,000 years figure is conservative and doesn’t take into account the 200,000,000 years of pre-hominid mammalian evolution. Doing so, on the basis of the mammalian brain & physiology being what’s important here, means our modern stressors have been around for <0.0001% of the time we have.

    So guess what, our bodies haven’t caught up. As far as our bodies are concerned, we are supposed to be enjoying the sunshine of grassy plains and the shade of woodland while eating fruit.

    • When the alarm clock goes off, our body panics and prepares us to either flee or help fight the predator, because why else would we have been woken so?
    • When we have a pressing deadline for work, our brain processes this as “if we don’t do this, we will literally starve and die”.
    • When people are upset or angry with us, there’s a part of our brain that fears exile from the tribe and resultant death.

    …and so on.

    Health Risks of High Cortisol

    The long-term stressors are the biggest issue for health. Unless you have a heart condition or other relevant health problem, almost anyone can weather a brief unpleasant surprise. But if something persists? That prompts the body to try to protect you, bless it. The body’s attempts backfire, because…

    • One way it does this by making sure to save as much food as possible in the form of body fat
    • It’ll also increase your appetite, to make sure you eat anything you can while you still can
    • It additionally tries to protect you by keeping you on the brink of fight-or-flight readiness, e.g:
      • High blood pressure
      • High blood sugar levels
      • Rapid mood changes—gotta be able to do those heel-turns as necessary and react quickly to any possible threat!

    Suffice it to say, these things are not good for your long-term health.

    That’s the “Why”—now here’s the “How”:

    Lowering your cortisol levels mostly means lowering your stress and/or lowering your stress response. We previously gave some powerful tools for lowering anxiety, which for these purposes amounts to the same thing.

    However, we can also make nutritional and lifestyle changes that will reduce our cortisol levels, for example:

    • Reduce (ideally: eliminate from your lifestyle) caffeine
    • Reduce (ideally: eliminate from your lifestyle) alcohol
      • Yes, really. While many understandably turn to alcohol specifically to help manage stress, it only makes it worse long-term.
      • Additionally, alcohol directly stimulates cortisol production, counterintuitive as that may be.

    Read: Alcohol, Aging, and the Stress Response ← full article (with 37 sources of its own) from the NYMC covering how alcohol stimulates cortisol production and what that means for us

    As well as reductions/eliminations, are some things you can add into your lifestyle that will help!

    We’ve written previously about some:

    Read: Ashwagandha / Read: L-Theanine / Read: CBD Oil

    Other things include, no surprises here:

    Progressive Relaxation

    We’ll give this one its own section because we’ve not talked about it before. Maybe you’re familiar. If not, then in a nutshell: progressive relaxation means progressively tensing and then relaxing each part of your body in turn.

    Why does this work? Part of it is just a physical trick involving biofeedback and the natural function of muscles to contract and relax in turn, but the other part is even cleverer:

    It basically tricks the most primitive part of your brain, the limbic system, into thinking you had a fight and won, telling it “thank you very much for the cortisol but we don’t need it anymore”.

    Take a Hike! Or a Stroll… You Do You!

    Last but not least: go connect with your roots. Spend time in the park, or at least the garden. Have a picnic, if the weather suits. Go somewhere you can spend time around leafy green things under a blue sky (we realize the blue sky may be subject to availability in some locations, but do what you can!).

    Remember also: just as your body’s responses will be tricked by the alarm clock or the housework, they will also be easily tricked by blue and green stuff around you. If a sunny garden isn’t available in your location, a picture of one as your desktop background is the next best thing.

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    We’ve written before about Dr. Seeman’s method for robust health at all ages, focussing on:

    • Nutrition
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    In this book, she expands on these things far more than we have room to in our little newsletter, including (importantly!) how each interplays with the others. She also follows up with an invitation to take the “Hard to Kill 30-Day Challenge”.

    That said, in the category of criticism, it’s only 152 pages, and she takes some of that to advertise her online services in an effort to upsell the reader.

    Nevertheless, there’s a lot of worth in the book itself, and the writing style is certainly easy-reading and compelling.

    Bottom line: this book is half instructional, half motivational, and covers some very important areas of health.

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  • Strawberries vs Cherries – Which is Healthier?

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    Our Verdict

    When comparing strawberries to cherries, we picked the cherries.

    Why?

    It was close, and certainly both are great!

    When it comes to vitamins and minerals, each fruit has its strengths (and both are excellent sources of vitamins and minerals), but on balance, strawberry comes out a little higher—especially for vitamin C, as a cup of strawberries can provide the daily recommended amount already.

    In terms of macros, strawberries have less sugar, but this isn’t really a big deal when it comes to fruit, as the fiber content and polyphenols more than offset any negative effects.

    Speaking of which, the fiber content is comparable for each fruit, and both contain a lot of antioxidants.

    What swings it into cherries’ favor is cherries’ slew of specific phytochemical benefits, including cherry-specific anti-inflammatory properties, sleep-improving abilities, and post-exercise recovery boosts, as well as anti-diabetic benefits above and beyond the normal “this is a fruit” level.

    In short, both are very respectable fruits, but cherries have some qualities that are just special, and that we feel outweigh the “has more vitamin C” of strawberries.

    We’ll do a main feature on cherries’ medicinal properties sometime soon, but in the meantime, if you’d like to try a tart cherry supplement, here’s an example product on Amazon

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  • Without Medicare Part B’s Shield, Patient’s Family Owes $81,000 for a Single Air-Ambulance Flight

    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.

    Without Medicare Part B’s Shield, Patient’s Family Owes $81,000 for a Single Air-Ambulance Flight

    Debra Prichard was a retired factory worker who was careful with her money, including what she spent on medical care, said her daughter, Alicia Wieberg. “She was the kind of person who didn’t go to the doctor for anything.”

    That ended last year, when the rural Tennessee resident suffered a devastating stroke and several aneurysms. She twice was rushed from her local hospital to Vanderbilt University Medical Center in Nashville, 79 miles away, where she was treated by brain specialists. She died Oct. 31 at age 70.

    One of Prichard’s trips to the Nashville hospital was via helicopter ambulance. Wieberg said she had heard such flights could be pricey, but she didn’t realize how extraordinary the charge would be — or how her mother’s skimping on Medicare coverage could leave the family on the hook.

    Then the bill came.

    The Patient: Debra Prichard, who had Medicare Part A insurance before she died.

    Medical Service: An air-ambulance flight to Vanderbilt University Medical Center.

    Service Provider: Med-Trans Corp., a medical transportation service that is part of Global Medical Response, an industry giant backed by private equity investors. The larger company operates in all 50 states and says it has a total of 498 helicopters and airplanes.

    Total Bill: $81,739.40, none of which was covered by insurance.

    What Gives: Sky-high bills from air-ambulance providers have sparked complaints and federal action in recent years.

    For patients with private insurance coverage, the No Surprises Act, which went into effect in 2022, bars air-ambulance companies from billing people more than they would pay if the service were considered “in-network” with their health insurers. For patients with public coverage, such as Medicare or Medicaid, the government sets payment rates at much lower levels than the companies charge.

    But Prichard had opted out of the portion of Medicare that covers ambulance services.

    That meant when the bill arrived less than two weeks after her death, her estate was expected to pay the full air-ambulance fee of nearly $82,000. The main assets are 12 acres of land and her home in Decherd, Tennessee, where she lived for 48 years and raised two children. The bill for a single helicopter ride could eat up roughly a third of the estate’s value, said Wieberg, who is executor.

    The family’s predicament stems from the complicated nature of Medicare coverage.

    Prichard was enrolled only in Medicare Part A, which is free to most Americans 65 or older. That section of the federal insurance program covers inpatient care, and it paid most of her hospital bills, her daughter said.

    But Prichard declined other Medicare coverage, including Part B, which handles such things as doctor visits, outpatient treatment, and ambulance rides. Her daughter suspects she skipped that coverage to avoid the premiums most recipients pay, which currently are about $175 a month.

    Loren Adler, a health economist for the Brookings Institution who studies ambulance bills, estimated the maximum charge that Medicare would have allowed for Prichard’s flight would have been less than $10,000 if she’d signed up for Part B. The patient’s share of that would have been less than $2,000. Her estate might have owed nothing if she’d also purchased supplemental “Medigap” coverage, as many Medicare members do to cover things like coinsurance, he said.

    Nicole Michel, a spokesperson for Global Medical Response, the ambulance provider, agreed with Adler’s estimate that Medicare would have limited the charge for the flight to less than $10,000. But she said the federal program’s payment rates don’t cover the cost of providing air-ambulance services.

    “Our patient advocacy team is actively engaged with Ms. Wieberg’s attorney to determine if there was any other applicable medical coverage on the date of service that we could bill to,” Michel wrote in an email to KFF Health News. “If not, we are fully committed to working with Ms. Wieberg, as we do with all our patients, to find an equitable solution.”

    The Resolution: In mid-February, Wieberg said the company had not offered to reduce the bill.

    Wieberg said she and the attorney handling her mother’s estate both contacted the company, seeking a reduction in the bill. She said she also contacted Medicare officials, filled out a form on the No Surprises Act website, and filed a complaint with Tennessee regulators who oversee ambulance services. She said she was notified Feb. 12 that the company filed a legal claim against the estate for the entire amount.

    Wieberg said other health care providers, including ground ambulance services and the Vanderbilt hospital, wound up waiving several thousand dollars in unpaid fees for services they provided to Prichard that are normally covered by Medicare Part B.

    But as it stands, Prichard’s estate owes about $81,740 to the air-ambulance company.

    More from Bill of the Month

    The Takeaway: People who are eligible for Medicare are encouraged to sign up for Part B, unless they have private health insurance through an employer or spouse.

    “If someone with Medicare finds that they are having difficulty paying the Medicare Part B premiums, there are resources available to help compare Medicare coverage choices and learn about options to help pay for Medicare costs,” Meena Seshamani, director of the federal Center for Medicare, said in an email to KFF Health News.

    She noted that every state offers free counseling to help people navigate Medicare.

    In Tennessee, that counseling is offered by the State Health Insurance Assistance Program. Its director, Lori Galbreath, told KFF Health News she wishes more seniors would discuss their health coverage options with trained counselors like hers.

    “Every Medicare recipient’s experience is different,” she said. “We can look at their different situations and give them an unbiased view of what their next best steps could be.”

    Counselors advise that many people with modest incomes enroll in a Medicare Savings Program, which can cover their Part B premiums. In 2023, Tennessee residents could qualify for such assistance if they made less than $1,660 monthly as a single person or $2,239 as a married couple. Many people also could obtain help with other out-of-pocket expenses, such as copays for medical services.

    Wieberg, who lives in Missouri, has been preparing the family home for sale.

    She said the struggle over her mother’s air-ambulance bill makes her wonder why Medicare is split into pieces, with free coverage for inpatient care under Part A, but premiums for coverage of other crucial services under Part B.

    “Anybody past the age of 70 is likely going to need both,” she said. “And so why make it a decision of what you can afford or not afford, or what you think you’re going to use or not use?”

    Bill of the Month is a crowdsourced investigation by KFF Health News and NPR that dissects and explains medical bills. Do you have an interesting medical bill you want to share with us? Tell us about it!

    KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.

    Subscribe to KFF Health News’ free Morning Briefing.

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