Rapamycin Can Slow Aging By 20% (But Watch Out)
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Rapamycin’s Pros & Cons
Rapamycin is generally heralded as a wonderdrug that (according to best evidence so far) can slow down aging, potentially adding decades to human lifespan—and yes, healthspan.
It comes from a kind of soil bacteria, which in turn comes from the island of Rapa Nui (a Chilean territory best known for its monumental moai statues), hence the name rapamycin.
Does it work?
Yes! Probably! With catches!
Like most drugs that are tested for longevity-inducing properties, research in humans is very slow. Of course for drugs in general, they must go through in vitro and in vivo animal testing first before they can progress to human randomized clinical trials, but for longevity-inducing drugs, it’s tricky to even test in humans, without waiting entire human lifetimes for the results.
Nevertheless, mouse studies are promising:
Rapamycin: An InhibiTOR of Aging Emerges From the Soil of Easter Island
(“Easter Island” is another name given to the island of Rapa Nui)
That’s not a keysmash in the middle there, it’s a reference to rapamycin’s inhibitory effect on the kinase mechanistic target of rapamycin, sometimes called the mammalian target of rapamycin, and either way generally abbreviated to “mTOR”—also known as “FK506-binding protein 12-rapamycin-associated protein 1” or “FRAP1“ to its friends, but we’re going to stick with “mTOR”.
What’s relevant about this is that mTOR regulates cell growth, cell proliferation, cell motility, cell survival, protein synthesis, autophagy, and transcription.
Don’t those words usually get associated with cancer?
They do indeed! Rapamycin and its analogs have well-demonstrated anti-cancer potential:
❝Rapamycin, the naturally occurring inhibitor of mTOR, along with a number of recently developed rapamycin analogs (rapalogs) consisting of synthetically derived compounds containing minor chemical modifications to the parent structure, inhibit the growth of cell lines derived from multiple tumor types in vitro, and tumor models in vivo.
Results from clinical trials indicate that the rapalogs may be useful for the treatment of subsets of certain types of cancer.❞
…and as such, gets used sometimes as an anticancer drug—especially against renal cancer. See also:
Research perspective: Cancer prevention with rapamycin
What’s the catch?
Aside from the fact that its longevity-inducing effects are not yet proven in humans, the mouse models find its longevity effects to be sex-specific, extending the life of male mice but not female ones:
Rapamycin‐mediated mouse lifespan extension: Late‐life dosage regimes with sex‐specific effects
One hypothesis about this is that it may have at least partially to do with rapamycin’s immunomodulatory effect, bearing in mind that estrogen is immune-enhancing and testosterone is immunosuppressant.
And rapamycin? That’s another catch: it is an immunosuppressant.
This goes in rapamycin’s favor for its use to avoiding rejection when it comes to some transplants (most notably including for kidneys), though the very same immunosuppressant effect is a reason it is contraindicated for certain other transplants (such as in liver or lung transplants), where it can lead to an unacceptable increase in risk of lymphoma and other malignancies:
Prescribing Information: Rapamune, Sirolimus Solution / Sirolimus Tablet
(Sirolimus is another name for rapamycin, and Rapamune is a brand name)
What does this mean for the future?
Researchers think that rapamycin may be able to extend human lifespan to a more comfortable 120–125 years, but acknowledge there’s quite a jump to get there from the current mouse studies, and given the current drawbacks of sex-specificity and immunosuppression:
Advances in anti-aging: Rapamycin shows potential to extend lifespan and improve health
Noteworthily, rapamycin has also shown promise in simultaneously staving off certain diseases associated most strongly with aging, including Alzheimer’s and cardiac disease—or even, starting earlier, to delay menopause, in turn kicking back everything else that has an uptick in risk peri- or post-menopause:
Effect of Rapamycin in Ovarian Aging (Rapamycin)
👆 an upcoming study whose results are thus not yet published, but this is to give an idea of where research is currently at. See also:
Pilot Study Evaluates Weekly Pill to Slow Ovarian Aging, Delay Menopause
Where can I try it?
Not from Amazon, that’s for sure!
It’s still tightly regulated, but you can speak with your physician, especially if you are at risk of cancer, especially if kidney cancer, about potentially being prescribed it as a preventative—they will be able to advise about safety and applicability in your personal case.
Alternatively, you can try getting your name on the list for upcoming studies, like the one above. ClinicalTrials.gov is a great place to watch out for those.
Meanwhile, take care!
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Health Hacks from 20 Doctors
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Doctor Mike’s Approach
You may be used to Tuesday’s expert insights column, where we break down the work or research of a medical expert. Doctor Mike, the creator of the video below, has put us to shame, interviewing 20 experts and condensing it into one, sub 12-minute video.
In short, Doctor Mike has interviewed medical professionals and asked them to share a unique piece of advice, specific to their field, that’s easy to incorporate into your daily routine. He calls them Health Hacks (hey, that sounds similar to our Life Hacks section).
We aren’t going to list out all 20—you’ll have to watch the video for that—but here are a few of our favourites
Toenail Fungus Treatment
Dr. Dana Brems, a podiatrist, reveals that Vicks VapoRub has antifungal properties, and thus can be used on toenails affected by fungus.
Water Intake Myth
Dr. Rena Malik, a urologist, debunks the myth that everyone needs to drink eight glasses of water daily, advising people to drink when thirsty and monitor urine color for hydration.
(You can see what we’ve written on this subject here, as well as here).
Natural Lip Plumper
Dr. Anthony Youn, a plastic surgeon, offers a simple recipe for plumping lips—add a drop or two of food-grade peppermint oil to your lip gloss.
Toothbrushing Technique:
Dr. Winters, an orthodontist, explains that brushing teeth at a 45-degree angle towards the gums is more effective than the common side-to-side method. See our thoughts on this here and here.
Want more tips? Watch them all in the video 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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Peripheral Neuropathy: How To Avoid It, Manage It, Treat It
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Peripheral neuropathy (and what can be done about it)
Peripheral neuropathy is nerve damage, usually of the extremities. It can be caused by such things as:
- Diabetes
- Alcoholism
- Infection
- Injury
The manifestations can be different:
- In the case of diabetes, it’s also called diabetic neuropathy, and almost always affects the feet first.
- In the case of alcoholism, it is more generalized, but tends towards affecting the extremities first.
- In the case of infection, a lot depends on the nature of the infection and the body’s response.
- In the case of injury, it’ll naturally be the injured part, or a little “downstream” of the injured part.
- This could be the case of a single traumatic injury (e.g. hand got trapped in a slammed door)
This could be the case of a repetitive injury (carpal tunnel syndrome is a kind of peripheral neuropathy, and is usually caused by consistent misalignment of the carpal tunnel, the aperture through which a bundle of nerves make their way from the forearm to the hand)
Prevention is better than cure
If you already have peripheral neuropathy, don’t worry, we’ll get to that. But, if you can, prevention is better than cure. This means:
- Diabetes: if you can, avoid. This may seem like no-brainer advice, but it’s often something people don’t think about until hitting a pre-diabetic stage. Obviously, if you are Type 1 Diabetic, you don’t have this luxury. But in any case, whatever your current status, take care of your blood sugars as best you can, so that your blood can take care of you (and your nerves) in turn. You might want to check out our previous main feature about this:
- Alcoholism: obviously avoid, if you can. You might like this previous edition of 10almonds addressing this:
- Infection: this is so varied that one-liner advice is really just “try to look after your immune health”.
- We’ll do a main feature on this soon!
- Injury: obviously, try to be careful. But that goes for the more insidious version too! For example, if you spend a lot of time at your computer, consider an ergonomic mouse and keyboard.
- There are many kinds available, so read reviews, but here’s an example product on Amazon
Writer’s note: as you might guess, I spend a lot of time at my computer, and a lot of that time, writing. I additionally spend a lot of time reading. I also have assorted old injuries from my more exciting life long ago. Because of this, it’s been an investment in my health to have:
A standing desk
A vertical ergonomic mouse
An ergonomic split keyboard
A Kindle*
*Far lighter and more ergonomic than paper books. Don’t get me wrong, I’m writing to you from a room that also contains about a thousand paper books and I dearly love those too, but more often than not, I read on my e-reader for comfort and ease.
If you already have peripheral neuropathy
Most advice popular on the Internet is just about pain management, but what if we want to treat the cause rather than the symptom?
Let’s look at the things commonly suggested: try ice, try heat, try acupuncture, try spicy rubs (from brand names like Tiger Balm, to home-made chilli ointments), try meditation, try a warm bath, try massage.
And, all of these are good options; do you see what they have in common?
It’s about blood flow. And that’s why they can help even in the case of peripheral neuropathy that’s not painful (it can also manifest as numbness, and/or tingling sensations).
By getting the blood flowing nicely through the affected body part, the blood can nourish the nerves and help them function correctly. This is, in effect, the opposite of what the causes of peripheral neuropathy do.
But also don’t forget: rest
- Put your feet up (literally! But we’re talking horizontal here, not elevated past the height of your heart)
- Rest that weary wrist that has carpal tunnel syndrome (again, resting it flat, so your hand position is aligned with your forearm, so the nerves between are not kinked)
- Use a brace if necessary to help the affected part stay aligned correctly
- You can get made-for-purpose wrist and ankle braces—you can also get versions that are made for administering hot/cold therapy, too. That’s just an example product linked that we can recommend; by all means read reviews and choose for yourself, though. Try them and see what helps.
One more top tip
We did a feature not long back on lion’s mane mushroom, and it’s single most well-established, well-researched, well-evidenced, completely uncontested benefit is that it aids peripheral neurogenesis, that is to say, the regrowth and healing of the peripheral nervous system.
So you might want to check that out:
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Rice vs Buckwheat – Which is Healthier?
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Our Verdict
When comparing rice to buckwheat, we picked the buckwheat.
Why?
It’s a simple one today:
- The vitamin and mineral profiles are very similar, so neither of these are a swaying factor
- In terms of macros, rice is higher in carbohydrates while buckwheat is higher in fiber
- Buckwheat also has more protein, but not by much
- Buckwheat has the lower glycemic index, and a lower insulin index, too
While buckwheat cannot always be reasonably used as a substitute for rice (often because the texture would not work the same), in many cases it can be.
And if you love rice, well, so do we, but variety is also the spice of life indeed, not to mention important for good health. You know that whole “eat 30 different plants per week” thing? Grains count in that tally! So substituting buckwheat in place of rice sometimes seems like a very good bet.
Not sure where to buy it?
Here for your convenience is an example product on Amazon
Want to know more about today’s topic?
Check out: Carb-Strong or Carb-Wrong?
Enjoy!
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Beating Toxic Positivity
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How To Get Your Brain On A More Positive Track (Without Toxic Positivity)
There have been many studies done regards optimism and health, and they generally come to the same conclusion: optimism is simply good for the health.
Here’s an example we’ve mentioned before, but it’s a good introduction to today’s main feature. It’s a longitudinal study, and it followed 121,700 women (what a sample size!) for eight years. It controlled for all kinds of other lifestyle factors (especially smoking, drinking, diet, and exercise habits, as well as pre-existing medical conditions), so this wasn’t a case of “people who are healthy are more optimistic as results. And, in the researchers’ own words…
❝We found strong and statistically significant associations of increasing levels of optimism with decreasing risks of mortality, including mortality due each major cause of death, such as cancer, heart disease, stroke, respiratory disease, and infection. Importantly, findings were maintained after close control for potential confounding factors, including sociodemographic characteristics and depression❞
Read: Optimism and Cause-Specific Mortality: A Prospective Cohort Study
And yet, toxic positivity can cause as many problems as it tries to fix.
What is toxic positivity?
- Toxic positivity is the well-meaning friend who says “I’m sure it’ll be ok” when you know full well it definitely will not.
- Toxic positivity is the allegorical frog-in-a-pan saying that the temperature rises due to climate change are gradual, so they’re nothing to worry about
- Toxic positivity is thinking that “good vibes” will outperform chemotherapy
Sometimes, a dose of realism is needed. So, can we do that and maintain a positive attitude?
The answer is: somewhat, yes! But first, a quick check-in:
❝I’m not a pessimist; I’m a realist!❞
~ every pessimist ever
To believe self-reports, the world is divided between optimists and realists. But how does your outlook measure up, really?
While like most free online tests, this is offered “as-is” with the usual caveats about not being a clinical diagnostic tool, this one actually has a fair amount of scientific weight behind it:
❝Empirical testing has indicated the validity of the Optimism Pessimism Instrument as published in the scientific journal Current Psychology: Research and Reviews.
The IDRlabs Optimism/Pessimism Test (IDR-OPT) was developed by IDRlabs. The IDR-OPT is based on the Optimism/Pessimism Instrument (OPI) developed by Dr. William Dember, Dr. Stephanie Martin, Dr. Mary Hummer, Dr. Steven Howe, and Dr. Richard Melton, at the University of Cincinnati.❞
Take This Short (1–2 mins) Test
How did you score? And what could you do to improve on that score?
First, it’s said that with a big enough “why”, one can overcome any “how”. So…
An attitude of gratitude
We know, we know, it’s very Oprah Winfrey. But also, it works. Take the time, ideally daily, to quickly list 3–5 things for which you feel grateful. Great or small, it can be anything from your spouse to your cup of coffee, provided you feel fortunate to have it.
How this works: our brains easily get stuck in loops, so it can help to nudge them into a more positive loop.
What about when we are treated unfairly? Are we supposed to be grateful?
Sometimes, our less positive emotions are necessary, to protect us and/or those around us, and to provide a motivational force. We can still maintain a positive attitude by noting the bad thing and some good, but watch out! Notice the difference:
- “How dare they take our healthcare away, but at least I’m not sick right now” (lasting impression: no action required)
- “At least I’m not sick right now, but how dare they take our healthcare away!” (lasting impression: action required)
It’s a well-known idea in neurolinguistic programming, that “but” negates whatever goes before it (think of “I’m sorry but”, or “I’m not racist but”, etc), so use it consciously and wisely, or else simply use “and” instead.
Cognitive reframing: problem, or opportunity?
Most problems can be opportunities, even if the problems themselves genuinely suck and are not intrinsically positive. A way of leveraging this can be replacing “I have to…” with “I get to…”.
This not only can reframe problems as opportunities, but also calls back to the gratitude idea.
- Instead of “I have to get my mammogram / prostate exam” (not generally considered fun activities), “I get to have the peace of mind of being free from cancer / I get to have the forewarning that will keep me safe”.
- Instead of “I have to go to work”, “I get to go to work” (many wish they were in your shoes!)
- Instead of “I have to rest”, “I get to rest”
When things are truly not great
Whether due to internal or external factors, whether you can control something or not, sometimes things are truly not great. The trick here is that in most contexts, one can replace negative talk, with verbally positive talk, no matter how dripping with scathing irony. You’ll still get to express the idea you wanted, but your brain will feel more positive and you’ll be in a positive loop rather than a negative one.
This, by the way, is the inverse of talking to a dog with a tone of voice that is completely the opposite of the meaning of the words. Whereas the dog will interpret the tone only, your brain will interpret the words only.
- You just spilled your drink over yourself at a social function? “Aren’t I the very model of grace and charm?”
- You made a costly mistake in your business dealings? “I am such a genius”
- You just got a diagnosis of a terrible disease? “Well, this is fabulous”
None of these things involve burying your head in the sand, in the manner of toxic positivity. You’ll still learn from your business mistake and correct it as best you can, or take appropriate action regards the disease, for example.
You’ll just feel better while you do it, and not get caught into a negative spiral that ruins your day, or even your next few months.
Sympathetic/Somatic Therapy:
Lastly, an easy one, leveraging the body’s tendency to get in sync with things around us:
For when you do just need a mood change, have an uplifting playlist available at the touch of a button. It’s hard to be consumed with counterproductive feelings to the tune of “Walking on Sunshine”!
Bonus tip: consider having the playlist start with something that is lyrically negative while musically upbeat. That way, your brain won’t resist it as antithetical to your mood, and by the second track, you’ll already be on your way to a better mood.
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Ham Substitute in Bean Soup
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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 am interested in what I can substitute for ham in bean soup?
Well, that depends on what the ham was like! You can certainly buy ready-made vegan lardons (i.e. small bacon/ham bits, often in tiny cubes or similar) in any reasonably-sized supermarket. Being processed, they’re not amazing for the health, but are still an improvement on pork.
Alternatively, you can make your own seitan! Again, seitan is really not a health food, but again, it’s still relatively less bad than pork (unless you are allergic to gluten, in which case, definitely skip this one).
Alternatively alternatively, in a soup that already contains beans (so the protein element is already covered), you could just skip the ham as an added ingredient, and instead bring the extra flavor by means of a little salt, a little yeast extract (if you don’t like yeast extract, don’t worry, it won’t taste like it if you just use a teaspoon in a big pot, or half a teaspoon in a smaller pot), and a little smoked paprika. If you want to go healthier, you can swap out the salt for MSG, which enhances flavor in a similar fashion while containing less sodium.
Wondering about the health aspects of MSG? Check out our main feature on this, from last month:
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The Calorie Myth – by Jonathan Bailor
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First we’ll mention: the author is not a doctor, but the book is endorsed by assorted well-known doctors in the field, and the science described is consistent with current scientific consensus (and, for that matter, consistent with what we wrote in our mythbusting feature: Are You A Calorie-Burning Machine?).
It’s often (correctly) said that “not all calories are created equal”, but how should we quantify them? He proposes his “SANE solution”, which is based around the ideas of:
- Satiety: how quickly calories fill us up
- Aggression: how likely calories are to be stored as fat
- Nutrition: how many micronutrients calories bring with them, and how much
- Efficiency: how easily calories are converted
To this end, he recommends a diet high in foods that score well on his “SANE” factors, and provides such things as recipes, meal plans etc to help, as well principles for exercising more usefully in the context of metabolic base rate, and moving (rather than fighting) one’s “set point”, which is usually associated with one’s weight but it really has more to do with metabolic base rate. In fact, Bailor recommends throwing out the bathroom scale and focusing on pursuing good health itself, rather than obsessing over changing one’s relationship with the Earth’s gravitational field.
Yes, it says “lose weight” in the subtitle, but the idea is that this will be a by-product rather than the thing actively pursued. After all, we can control our actions, so that input variable is where we should put our focus, not the output variable of the numbers on the scale which can often be misleading (muscle weighing more than fat, tendency to water weight fluctuations, etc).
The style is a little flashy and salesy for this reviewer’s personal taste (a lot of references to his own businesses and neologisms associated with such), but it doesn’t take away from the quality of the content, and in terms of science, study references come at a rate of about one per page on average.
Bottom line: if you’d like to rethink your relationship with calories, then this book can help give you a much more practical angle.
Click here to check out The Calorie Myth, and take control of your metabolic base rate!
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