Dealing with Thirst!

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Busting The Myth of “Eight Glasses Of Water A Day”

Everyone knows we must drink 8 glasses of water a day, or else we’re going to get a failing grade at being a healthy human—like not flossing, or not using adequate sunscreen.

But… Do we? And does tea count? How about (we dare but whisper it) coffee? And soda drinks are mostly water, right? But aren’t some drinks dehydrating? Are special electrolyte drinks really better? There are so many things to consider, so many differing advices, and it’s easy to give up, or just choose what to believe in as a leap of faith.

A quick brain-teaser for you first, though:

If coffee and soda don’t count because they’re dehydrating, then what if you were to take:

– A concentrated tiny cup of espresso, and then a glass of water, would the glass of water count?

Or (we don’t relish the thought) what if you took a spoonful of soda syrup, and then a glass of water, would the glass of water count?

If your answer was “yes, it’s a glass of water”, then why would it not count if it were taken all at once (e.g. as an Americano coffee, or a regular soda)?

If your answer was “yes, but that water might only offset the dehydration caused by the coffee/syrup, so I might only be breaking even”, then you were thinking about this the right way:

How much water you need depends on many factors that can be affected by what else you are consuming and what else you are doing. Science loves averages, so eight glasses a day may be great if you are of average health, and average body size, in a temperate climate, doing moderate exercise, and so on and so on.

If you’re not the most average person of all time? You may need to take into account a lot of factors, ranging from what you ate for dinner to how much you perspired during your morning exercises. As you (probably) don’t live in laboratory conditions, this can become an impossible task—and if you missed (or guessed incorrectly) even one factor, the whole calculation will be thrown off. But is there any other way to know?

What of the infamous pee test? Drink enough to make your urine as clear as possible, and if it’s dark, you’re dehydrated, common wisdom says.

In reality, however, that tells you not what’s in your body, but rather, what got ejected from your body. If your urine is dark, it might mean you had too little water, but it also could just mean you had the right amount of water but too much sodium, for instance. A study of this was done on athletes, and found no correlation between urine color and actual bodily hydration when measured directly via a blood test.

So, if we can’t just have an app tell us “drink this many glasses of water”, and we can’t trust urine color, what can we do?

What we can do is trust that our body comes with (for free!) a wonderful homeostatic system and it will try to correct any imbalances. If you are thirsty, you’re dehydrated. Drink something with plenty of water in, if not plain water.

But what about special electrolyte drinks? If you need salts, you will crave them. Craving a salty snack? Go for it! Or if you prefer not to snack, do a salt lick test (just put a little salt on your finger, and taste it; if it tastes good, wait a minute or two, and then have a little more, and repeat until it doesn’t).

Bonus Tip:

  1. Make sure you always have a source of hydration (that you enjoy!) to hand. Maybe it’s chilled water, maybe it’s a pot of tea, maybe it’s a sports drink, it doesn’t matter too much. Even coffee is actually fine, by the way (but don’t overdo it).
  2. Make a personal rule: “I will always make time for hydration”. That means, if you’re thirsty, have something with water in it now. Not when you’ve finished what you’re doing (unless you really can’t stop, because you are a racecar driver mid-race, or a surgeon mid-operation, or something), but now. Do not postpone it until after you’ve done some other thing first; you will forget and it will keep getting postponed. Always make time for water.

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  • Corn Chips vs Potato Chips: Which is Healthier?

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    Our Verdict

    When comparing corn chips to potato chips, we picked the corn chips.

    Why?

    First, let it be said, this was definitely a case of “lesser evil voting” as there was no healthy choice here. But as for which is relatively least unhealthy…

    Most of the macronutrient and micronutrient profile is quite similar. Both foods are high carb, moderately high fat, negligible protein, and contain some trace minerals and even some tiny amounts of vitamins. Both are unhealthily salty.

    Exact numbers will of course vary from one brand’s product to another, but you can see some indicative aggregate scores here in the USDA’s “FoodData Central” database:

    Corn Chips | Potato Chips

    The biggest health-related difference that doesn’t have something to balance it out is that the glycemic index of corn chips averages around 63, whereas the glycemic index of potato chips averages around 70 (that is worse).

    That’s enough to just about tip the scales in favor of corn chips.

    The decision thus having been made in favor of corn chips (and the next information not having been part of that decision), we’ll mention one circumstantial extra benefit to corn chips:

    Corn chips are usually eaten with some kind of dip (e.g. guacamole, sour cream, tomato salsa, etc) which can thus deliver actual nutrients. Potato chips meanwhile are generally eaten with no additional nutrients. So while we can’t claim the dip as being part of the nutritional make-up of the corn chips, we can say:

    If you’re going to have a habit of eating one or the other, then corn chips are probably the least unhealthy of the two.

    And yes, getting vegetables (e.g. in the dips) in ways that are not typically associated with “healthy eating” is still better than not getting vegetables at all!

    Check out: Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)

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  • Frozen/Thawed/Refrozen Meat: How Much Is Safety, And How Much Is Taste?

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    What You Can (And Can’t) Safely Do With Frozen Meat

    Yesterday, we asked you:

    ❝You have meat in the freezer. How long is it really safe to keep it?❞

    …and got a range of answers, mostly indicating to a) follow the instructions (a very safe general policy) and b) do not refreeze if thawed because that would be unsafe. Fewer respondents indicated that meat could be kept for much longer than guidelines say, or conversely, that it should only be kept for weeks or less.

    So, what does the science say?

    Meat can be kept indefinitely (for all intents and purposes) in a freezer; it just might get tougher: True or False?

    False, assuming we are talking about a normal household electrical freezer that bottoms out at about -18℃ / 0℉.

    Fun fact: cryobiologists cryopreserve tissue samples (so basically, meat) at -196℃ / -320℉, and down at those temperatures, the tissues will last a lot longer than you will (and, for all practical purposes: indefinitely). There are other complications with doing so (such as getting the sample through the glass transition point without cracking it during the vitrification process) but those are beyond the scope of this article.

    If you remember back to your physics or perhaps chemistry classes at school, you’ll know that molecules move more quickly at higher temperatures, and more slowly at lower ones, only approaching true stillness as they near absolute zero (-273℃ / -459℉ / 0K ← we’re not saying it’s ok, although it is; rather, that is zero kelvin; no degree sign is used with kelvins)

    That means that when food is frozen, the internal processes aren’t truly paused; it’s just slowed to a point of near imperceptibility.

    So, all the way up at the relatively warm temperatures of a household freezer, a lot of processes are still going on.

    What this means in practical terms: those guidelines saying “keep in the freezer for up to 4 months”, “keep in the freezer for up to 9 months”, “keep in the freezer for up to 12 months” etc are being honest with you.

    More or less, anyway! They’ll usually underestimate a little to be on the safe side—but so should you.

    Bad things start happening within weeks at most: True or False?

    False, for all practical purposes. Again, assuming a normal and properly-working household freezer as described above.

    (True, technically but misleadingly: the bad things never stopped; they just slowed down to a near imperceptible pace—again, as described above)

    By “bad” here we should clarify we mean “dangerous”. One subscriber wrote:

    ❝Meat starts losing color and flavor after being in the freezer for too long. I keep meat in the freezer for about 2 months at the most❞

    …and as a matter of taste, that’s fair enough!

    It is unsafe to refreeze meat that has been thawed: True or False?

    False! Assuming it has otherwise been kept chilled, just the same as for fresh meat.

    Food poisoning comes from bacteria, and there is nothing about the meat previously having been frozen that will make it now have more bacteria.

    That means, for example…

    • if it was thawed (but chilled) for a period of time, treat it like you would any other meat that has been chilled for that period of time (so probably: use it or freeze it, unless it’s been more than a few days)
    • if it was thawed (and at room temperature) for a period of time, treat it like you would any other meat that has been at room temperature for that period of time (so probably: throw it out, unless the period of time is very small indeed)

    The USDA gives for 2 hours max at room temperature before considering it unsalvageable, by the way.

    However! Whenever you freeze meat (or almost anything with cells, really), ice crystals will form in and between cells. How much ice crystallization occurs depends on several variables, with how much water there is present in the food is usually the biggest factor (remember that animal cells are—just like us—mostly water).

    Those ice crystals will damage the cell walls, causing the food to lose structural integrity. When you thaw it out, the ice crystals will disappear but the damage will be left behind (this is what “freezer burn” is).

    So if your food seems a little “squishy” after having been frozen and thawed, that’s why. It’s not rotten; it’s just been stabbed countless times on a microscopic level.

    The more times you freeze and thaw and refreeze food, the more this will happen. Your food will degrade in structural integrity each time, but the safety of it won’t have changed meaningfully.

    Want to know more?

    Further reading:

    You can thaw and refreeze meat: five food safety myths busted

    Take care!

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  • Cynthia’s Thoughts on Intermittent Fasting

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    The Myth of Breakfast and Snacking

    Here at 10almonds we love addressing misconceptions in the health world.

    When it comes to eating habits and fasting, we’ve written our own pieces on how to break your fast (otherwise known as break-fast, or breakfast), alongside a general breakdown of intermittent fasting, and a much-requested piece on fasting specifically for women.

    Cynthia Thurlow, though, instead of just writing a few articles, has dedicated the majority of her working years to intermittent fasting and, in her TEDx talk (below), makes a strong argument challenging the long-held belief that breakfast is the most important meal of the day.

    Cynthia Thurlow’s Two Main Points

    Thurlow argues that it’s not what you eat but when you eat that has a more profound impact on health and aging. And she argues this is crucial regardless of your age.

    Complementing her views on fasting are her views on snacking; she argues that snacking all day long is outdated advice and can overtax the digestive system, leading to various health issues.

    Practical Tips for Starting Intermittent Fasting

    To begin intermittent fasting, Thurlow suggests starting with a 12-13 hour fasting window and gradually increasing it to 16 hours.

    In terms of food choice, she recommends eating whole, unprocessed foods during eating periods as well as staying well-hydrated with water, coffee, or tea.

    But you won’t see results immediately; Thurlow advises giving the strategy a solid 30 days to see results and consulting a healthcare provider if there are any existing health conditions.

    You can dive deeper and join the 15 million other people who have listened to her thoughts on fasting by watching her TEDx talk below:

    How was the video? If you’ve discovered any great videos yourself that you’d like to share with fellow 10almonds readers, then please do email them to us!

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  • “You Just Need to Lose Weight” And 19 Other Myths About Fat People – by Aubrey Gordon

    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’ve previously reviewed another book by this author, “What We Don’t Talk About When We Talk About Fat”, and this time, she’s doing some important mythbusting.

    The titular “you just need to lose weight” is a commonly-taken easy-out for many doctors, to avoid having to dispense actual treatment for an actual condition. Whether or not weight loss would help in a given situation is often immaterial; “kicking the can down the road” is the goal.

    Most of the book is divided into 20 chapters, each of them devoted to debunking one myth. Think of it like 10almonds’ “Mythbusting Friday” edition (indeed, we did one about obesity), but with an entire book, and as much room as she needs to provide much more detail than we can ever get into in a single article.

    And far from being a mere polemic, she does indeed provide that detail—this is clearly a very well-researched book, above and beyond the author’s own personal experience. Further, all the key points are illustrated and articulated clearly, making the book’s ideas very comprehensible.

    The style is pop-science, but with frequent bibliographical references for relevant sources.

    Bottom line: for some readers, this book will come as a great validation; for others, it may be eye-opening. Either way, it’s a very worthwhile read.

    Click here to check out “You Just Need to Lose Weight” And 19 Other Myths About Fat People, and get those myths cleared out!

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  • Oat Milk vs Almond Milk – Which is Healthier?

    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.

    Our Verdict

    When comparing oat milk to almond milk, we picked the almond milk.

    Why?

    This one’s quite straightforward, and no, it’s not just our bias for almonds

    Rather, almonds contain a lot more vitamins and minerals, all of which usually make it into the milk.

    Oat milk is still a fine choice though, and has a very high soluble fiber content, which is great for your heart.

    Just make sure you get versions without added sugar or other unpleasantries! You can always make your own at home, too.

    You can read a bit more about the pros and cons of various plant milks here:

    Which Plant Milk?

    Enjoy!

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  • Nudge – by Richard Thaler & Cass Sunstein

    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.

    How often in life do we make a suboptimal decision that ends up plaguing us for a long time afterwards? Sometimes, a single good or bad decision can even directly change the rest of our life.

    So, it really is important that we try to optimize the decisions we do make.

    Professors Richard Thaler and Cass Sunstein look at all kinds of decision-making in this book. Their goal, as per the subtitle, is “improving decisions about health, wealth, and happiness”.

    For the most part, the book concentrates on “nudges”. Small factors that influence our decisions one way or another.

    Most importantly: that some of them are very good reasons to be nudged; others, very bad ones. And they often look similar.

    Where this book excels is in highlighting the many ways we make decisions without even thinking about it… or we think about it, but only down a prescribed, foreseen track, to an externally expected conclusion (for example, an insurance company offering three packages, but two of them exist only to direct you to the “correct” choice).

    A weakness of the book is that in some aspects it’s a little inconsistent. The authors describe their economic philosophy as “libertarian paternalism”, and as libertarians they’re against mandates, except when as paternalists they’re for them. But, if we take away their labels, this boils down to “some mandates can be good and some can be bad”, which would not be so inconsistent after all.

    Bottom line: if you’d like to better understand your own decision-making processes through the eyes of policy-setting economists (especially Sunstein, who worked for the White House Office of Information & Regulatory Affairs) whose job it is to make sure you make the “right” decisions, then this is a very enlightening book.

    Click here to check out Nudge and improve your decision-making clarity!

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