Rethinking Exercise: The Workout Paradox
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The notion of running a caloric deficit (i.e., expending more calories than we consume) to reduce bodyfat is appealing in its simplicity, but… we’d say “it doesn’t actually work outside of a lab”, but honestly, it doesn’t actually work outside of a calculator.
Why?
For a start, exercise calorie costs are quite small numbers compared to metabolic base rate. Our brain alone uses a huge portion of our daily calories, and the rest of our body literally never stops doing stuff. Even if we’re lounging in bed and ostensibly not moving, on a cellular level we stay incredibly busy, and all that costs (and the currency is: calories).
Since that cost is reflected in the body’s budget per kg of bodyweight, a larger body (regardless of its composition) will require more calories than a smaller one. We say “regardless of its composition” because this is true regardless—but for what it’s worth, muscle is more “costly” to maintain than fat, which is one of several reasons why the average man requires more daily calories than the average woman, since on average men will tend to have more muscle.
And if you do exercise because you want to run out the budget so the body has to “spend” from fat stores?
Good luck, because while it may work in the very short term, the body will quickly adapt, like an accountant seeing your reckless spending and cutting back somewhere else. That’s why in all kinds of exercise except high-intensity interval training, a period of exercise will be followed by a metabolic slump, the body’s “austerity measures”, to balance the books.
You may be wondering: why is it different for HIIT? It’s because it changes things up frequently enough that the body doesn’t get a chance to adapt. To labor the financial metaphor, it involves lying to your accountant, so that the compensation is not made. Congratulations: you’re committing calorie fraud (but it’s good for the body, so hey).
That doesn’t mean other kinds of exercise are useless (or worse, necessarily counterproductive), though! Just, that we must acknowledge that other forms of exercise are great for various aspects of physical health (strengthening the body, mobilizing blood and lymph, preventing disease, enjoying mental health benefits, etc) that don’t really affect fat levels much (which are decided more in the kitchen than the gym—and even in the category of diet, it’s more about what and how and when you eat, rather than how much).
For more information on metabolic balance in the context of exercise, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
- Are You A Calorie-Burning Machine?
- Burn! How To Boost Your Metabolism
- How To Do HIIT (Without Wrecking Your Body)
- Lose Weight, But Healthily
- Build Muscle (Healthily!)
- How To Gain Weight (Healthily!)
Take care!
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Heart Rate Zones, Oxalates, & 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 think the heart may be an issue for lots of us. I know it is for me due to AFib. When I’m in my training zone like on a treadmill, I’m usually around 110 to 120. But there are occasionally times when I’m at 140 or 150. How dangerous is that? If I use that formula of 180 minus age, thats 103. I get nothing from that. My resting heart rate is in the 50 to 60 range.❞
First, for safety, let us draw attention to our medical disclaimer at the bottom of each email, and also specifically note that we are not cardiologists here, let alone your cardiologist. There’s a lot we can’t know or advise about. However, as general rules of thumb:
For people without serious health conditions, it is considered good and healthful for one’s heart rate to double (from its resting rate) during exercise, with even more than 2.5x resting rate being nothing more than a good cardio workout.
As for “180 minus age” (presuming you mean: to calculate the safe maximum heart rate), more common (and used by the American Heart Association) is 220 minus age. In your case, that’d give 143.
Having atrial fibrillation may change this however, and we can’t offer medical advice.
We can point to this AHA “AFib Resources For Patients and Professionals”, including this handy FAQ sheet which says:
“Am I able to exercise?” / “Yes, as long as you’re cleared by your doctor, you can perform normal activities of daily living that you can tolerate” (accompanied by a little graphic of a person using an exercise bike)
You personally probably know this already, of course, but it’s quite an extensive collection of resources, so we thought we’d include it.
It’s certainly a good idea for everyone to be aware of their healthy heart rate ranges, regardless of having a known heart condition or not, though!
American Heart Association: Target Heart Rates Chart
❝I would like to see some articles on osteoporosis❞
You might enjoy this mythbusting main feature we did a few weeks ago!
The Bare-Bones Truth About Osteoporosis
❝Interesting, but… Did you know spinach is high in oxylates? Some people are sensitive and can cause increased inflammation, joint pain or even kidney stones. Moderation is key. My sister and I like to eat healthy but found out by experience that too much spinach salad caused us joint and other aches.❞
It’s certainly good to be mindful of such things! For most people, a daily serving of spinach shouldn’t cause ill effects, and certainly there are other greens to eat.
We wondered whether there was a way to reduce the oxalate content, and we found:
How to Reduce Oxalic Acid in Spinach: Neutralizing Oxalates
…which led us this product on Amazon:
Nephure Oxalate Reducing Enzyme, Low Oxalate Diet Support
We wondered what “nephure” was, and whether it could be trusted, and came across this “Supplement Police” article about it:
Nephure Review – Oxalate Reducing Enzyme Powder Health Benefits?
…which honestly, seems to have been written as a paid advertisement. But! It did reference a study, which we were able to look up, and find:
In vitro and in vivo safety evaluation of Nephure™
…which seems to indicate that it was safe (for rats) in all the ways that they checked. They did not, however, check whether it actually reduced oxalate content in spinach or any other food.
The authors did declare a conflict of interest, in that they had a financial relationship with the sponsor of the study, Captozyme Inc.
All in all, it may be better to just have kale instead of spinach:
- 20 Foods High in Oxalates to Limit if You Have Kidney Stones
- The Kidney Dietician: The Best Low Oxalate Greens
We turn the tables and ask you a question!
We’ll then talk about this tomorrow:
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Once-A-Week Strategy to Stop Procrastination – by Brad Meir
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Procrastination is perhaps the most frustrating bad habit to kick!
We know we should do the things. We know why we should do the things. We want to do the things. We’re afraid of what will happen if we don’t do the things. And then we… don’t do the things? What is going on?!
Brad Meir has answers, and—what a relief—solutions. But enough about him, because first he wants to focus a little on you:
Why do you procrastinate? No, you’re probably not “just lazy”, and he’ll guide you through figuring out what it is that makes you procrastinate. There’s an exploration of various emotions here, as well as working out: what type of procrastinator are you?
Then, per what you figured out with his guidance, exercises, and tests, it’s time for an action plan.
But, importantly: one you can actually do, because it won’t fall foul of the problems you’ve been encountering so far. The exact mechanism you’ll use may vary a bit based on you, but some tools here are good for everyone—as well as an outline of the mistakes you could easily make, and how to avoid falling into those traps. And, last but very definitely not least, his “once a week plan”, per the title.
All in all, a highly recommendable and potentially life-changing book.
Grab Your Copy of “Once-A-Week Strategy to Stop Procrastination” NOW (don’t put it off!)
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Why Some People Get Sick More (And How To Not Be One Of Them)
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Some people have never yet had COVID (so far so good, this writer included); others are on their third bout already; others have not been so lucky and are no longer with us to share their stories.
Obviously, even the healthiest and/or most careful person can get sick, and it would be folly to be complacent and think “I’m not a person who gets sick; that happens to other people”.
Nor is COVID the only thing out there to worry about; there’s always the latest outbreak-du-jour of something, and there are always the perennials such as cold and flu—which are also not to be underestimated, because both weaken us to other things, and flu has killed very many, from the 50,000,000+ in the 1918 pandemic, to the 700,000ish that it kills each year nowadays.
And then there are the combination viruses:
Move over, COVID and Flu! We Have “Hybrid Viruses” To Contend With Now
So, why are some people more susceptible?
Firstly, some people are simply immunocompromised. This means for example that:
- perhaps they have an inflammatory/autoimmune disease of some kind (e.g. lupus, rheumatoid arthritis, type 1 diabetes), or…
- perhaps they are taking immunosuppressants for some reason (e.g. because they had an organ transplant), or…
- perhaps they have a primary infection that leaves them vulnerable to secondary infections. Most infections will do this to some degree or another, but some are worse for it than others; untreated HIV is a clear example. The HIV itself may not kill people, but (if untreated) the resultant AIDS will leave a person open to being killed by almost any passing opportunistic pathogen. Pneumonia of various kinds being high on the list, but it could even be something as simple as the common cold, without a working immune system to fight it.
See also: How To Prevent (Or Reduce) Inflammation
And for that matter, since pneumonia is a very common last-nail-in-the-coffin secondary infection (especially: older people going into hospital with one thing, getting a secondary infection and ultimately dying as a result), it’s particularly important to avoid that, so…
See also: Pneumonia: What We Can & Can’t Do About It
Secondly, some people are not immunocompromised per the usual definition of the word, but their immune system is, arguably, compromised.
Cortisol, the stress hormone, is an immunosuppressant. We need cortisol to live, but we only need it in small bursts here and there (such as when we are waking up the morning). When high cortisol levels become chronic, so too does cortisol’s immunosuppressant effect.
Top things that cause elevated cortisol levels include:
- Stress
- Alcohol
- Smoking
Thus, the keys here are to 1) not smoke 2) not drink, ideally, or at least keep consumption low, but honestly even one drink will elevate cortisol levels, so it’s better not to, and 3) manage stress.
See also: Lower Your Cortisol! (Here’s Why & How)
Other modifiable factors
Being aware of infection risk and taking steps to reduce it (e.g. avoiding being with many people in confined indoor places, masking as appropriate, handwashing frequently) is a good preventative strategy, along with of course getting any recommended vaccines as they come available.
What if they fail? How can we boost the immune system?
We talked about not sabotaging the immune system, but what about actively boosting it? The answer is yes, we certainly can (barring serious medical reasons why not), as there are some very important lifestyle factors too:
Beyond Supplements: The Real Immune-Boosters!
One final last-line thing…
Since if we do get an infection, it’s better to know sooner rather than later… A recent study shows that wearable activity trackers can (if we pay attention to the right things) help predict disease, including highlighting COVID status (positive or negative) about as accurately (88% accuracy) as rapid screening tests. Here’s a pop-science article about it:
Wearable activity trackers show promise in detecting early signals of disease
Take care!
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Here’s Looking At Ya!
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This Main Feature Should Take You Two Minutes (and 18 Seconds) To Read*
*Or at least, that’s what we’re told by our powerful software that checks things for readability!
Curious what that looks like? Try Out Hemingway App Online Here!
There’s a problem nobody wants to talk about when it comes to speed-reading
If you’re not very conscientious in your method, information does get lost. Especially, anything over 500 words per minute is almost certainly skimming and not true speed-reading.
One of the reasons information gets lost is because of a weird and wonderful feature of our eyes and brain: saccades.
Basically, our eyes can either collect visual information or they can move; they can’t do both at once. And as you may know, our eyes are almost always moving. So why aren’t we blind most of the time?
We actually are.
Did you know: your eyes take two upside-down 2D images and your brain presents you one 3D image the right way around instead? You probably did know that. So: it’s a bit like that.
Your brain takes a series of snapshots from whenever your eyes weren’t moving, and mentally fills in the blanks for you, just like a studio animation. We have a “frame rate” of about 60 frames per second, by the way—that’s why many computer monitors use that frequency. Lower frequencies can result in a noticeable flicker, and higher frequencies are wasted on us mere mortals!
Our eyes do some super-speedy movements called saccades (up to 500º per second! Happily no, our eyes don’t rotate 500º, but that’s the “per second” rate) and our brain fills in the gaps with its best guesses. The more you push it, the more it’ll guess wrong.
We’re not making this up, by the way! See for yourself:
Eye Movements In Reading And Information Processing: 20 Years Of Research
Fortunately, it is possible to use your eyes in a way that reduces the brain’s need to guess. That also means it has more processing power left over to guess correctly when it does need to.
Yes, There’s An App For That
Actually there are a few! But we’re going to recommend Spreeder as a top-tier option, with very rapid improvement right from day one.
It works by presenting the text with a single unmoving focal point. This is the opposite of traditional speed-reading methods that involve a rapidly moving pacer (such as your finger on the page, or a dot on the screen).
This unmoving focal point (while the words move instead) greatly reduces the number of saccades needed, and so a lot less information is lost to optical illusions and guesswork.
Try Spreeder (any platform) Here Now!
If you find that easy to use and would like something with a few more features, you might like another app that works on the same principle: Spritz.
It can take a bit more getting-used-to, but allows for greater integrations with all your favourite content in the long-run:
Check Out Spritz: Android App / iOS App / Free Chrome Extension
Lastly, if you don’t want any of those fancy apps and would just like to read more quickly and easily with less eye-strain, Beeline has you covered.
For free, unless you want to unlock some premium features!
How Beeline works is by adding a color gradient to text on websites and in documents. This makes it a lot easier for the eye to track without going off-piste, skipping a line, or re-reading the same bit again, etc.
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Menopause, & When Not To Let Your Guard Down
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This is Dr. Jessica Shepherd, a physician Fellow of the American College of Obstetricians & Gynecologists, CEO at Sanctum Medical & Wellness, and CMO at Hers.
She’s most well-known for her expertise in the field of the menopause. So, what does she want us to know?
Untreated menopause is more serious than most people think
Beyond the famous hot flashes, there’s also the increased osteoporosis risk, which is more well-known at least amongst the health-conscious, but oft-neglected is the increased cardiovascular disease risk:
What Menopause Does To The Heart
…and, which a lot of Dr. Shepherd’s work focuses on, it also increases dementia risk; she cites that 60–80% of dementia cases are women, and it’s also established that it progresses more quickly in women than men too, and this is associated with lower estrogen levels (not a problem for men, because testosterone does it for them) which had previously been a protective factor, but in untreated menopause, was no longer there to help:
Alzheimer’s Sex Differences May Not Be What They Appear
Treated menopause is safer than many people think
The Women’s Health Initiative (WHI) study, conducted in the 90s and published in 2002, linked HRT to breast cancer, causing fear, but it turned out that this was quite bad science in several ways and the reporting was even worse (even the flawed data did not really support the conclusion, much less the headlines); it was since broadly refuted (and in fact, it can be a protective factor, depending on the HRT regimen), but fearmongering headlines made it to mainstream news, whereas “oopsies, never mind, we take that back” didn’t.
The short version of the current state of the science is: breast cancer risk varies depending on age, HRT type, and dosage; some kinds of HRT can increase the risk marginally in those older than 60, but absolute risk is low compared to placebo, and taking estrogen alone can reduce risk at any age in the event of not having a uterus (almost always because of having had a hysterectomy; as a quirk, it is possible to be born without, though).
It’s worth noting that even in the cases where HRT marginally increased the risk of breast cancer, it significantly decreased the risk of cancers in total, as well fractures and all-cause-mortality compared to the placebo group.
In other words, it might be worth having a 0.12% risk of breast cancer, to avoid the >30% risk of osteoporosis, which can ultimately be just as fatal (without even looking at the other things the HRT is protective against).
However! In the case of those who already have (or have had) breast cancer, increasing estrogen levels can indeed make that worse/return, and it becomes more complicated in cases where you haven’t had it, but there is a family history of it, or you otherwise know you have the gene for it.
You can read more about HRT and breast cancer risk (increases and decreases) here:
…and about the same with regard to HMT, here:
The Hormone Therapy That Reduces Breast Cancer Risk & More
Lifestyle matters, and continues to matter
Menopause often receives the following attention from people:
- Perimenopause: “Is this menopause?”
- Menopause: “Ok, choices to make about HRT or not, plus I should watch out for osteoporosis”
- Postmenopause: “Yay, that’s behind me now, back to the new normal”
The reality, Dr. Shepherd advises, is that “postmenopause” is a misnomer because if it’s not being treated, then the changes are continuing to occur in your body.
This is a simple factor of physiology; your body is always rebuilding itself, will never stop until you die, and in untreated menopause+postmenopause, it’s now doing it without much estrogen.
So, you can’t let your guard down!
Thus, she recommends: focus on maintaining muscle mass, bone health, and cardiovascular health. If you focus on those things, the rest (including your brain, which is highly dependent on cardiovascular health) will mostly take care of itself.
Because falls and fractures, particularly hip fractures, drastically reduce quality and length of life in older adults, it is vital to avoid those, and try to be sufficiently robust so that if you do go A over T, you won’t injure yourself too badly, because your bones are strong. As a bonus, the same things (especially that muscle mass we talked about) will help you avoid falling in the first place, by improving stability.
See also: Resistance Is Useful! (Especially As We Get Older)
And about falls specifically: Fall Special: Be Robust, Mobile, & Balanced!
Want to know more from Dr. Shepherd?
You might like this book of hers that we reviewed not long back:
Generation M – by Dr. Jessica Shepherd
Take care!
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Peas vs Green Beans – Which is Healthier?
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Our Verdict
When comparing peas to green beans, we picked the peas.
Why?
Looking at macros first, peas have nearly 6x the protein, nearly 2x the fiber, and nearly 2x the carbs, making them the “more food per food” choice.
In terms of vitamins, peas have more of vitamins A, B1, B2, B3, B5, B6, B7, B9, C, and choline, while green beans have more of vitamins E and K. An easy win for peas.
In the category of minerals, peas have more copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc, while green beans have more calcium. Another overwhelming win for peas.
In short, enjoy both (diversity is good), but there’s a clear winner here and it’s peas.
Want to learn more?
You might like to read:
Peas vs Broad Beans – Which is Healthier?
Take care!
Don’t Forget…
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