The Longevity Project – by Dr. Howard Friedman & Dr. Leslie Martin
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.
Most books on the topic of longevity focus on such things as diet and exercise, and indeed, those are of course important things. But what of psychological and sociological factors?
Dr. Friedman and Dr. Martin look at a landmark longitudinal study, following a large group of subjects from childhood into old age. Looking at many lifestyle factors and life events, they crunched the numbers to see what things really made the biggest impact on healthy longevity.
A strength of the book is that this study had a huge amount of data—a limitation of the book is that it often avoids giving that concrete data, preferring to say “many”, “a majority”, “a large minority”, “some”, and so forth.
However, the conclusions from the data seem clear, and include many observations such as:
- conscientiousness is a characteristic that not only promotes healthy long life, but also can be acquired as time goes by (some “carefree” children became “conscientious” adults)
- resilience is a characteristic that promotes healthy long life—but tends to only be “unlocked” by adversity
- men tend to live longer if married—women, not so much
- religion and spirituality are not big factors in healthy longevity—but social connections (that may or may not come with such) do make a big difference
Bottom line: if you’d like to know which of your decisions are affecting your healthy longevity (beyond the obvious diet, exercise, etc), this is a great book for collating that information and presenting, in essence, a guideline for a long healthy life.
Click here to check out The Longevity Project and see how it applies to your life!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Recommended
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
CBD Against Diabetes!
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.
It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
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
❝CBD for diabetes! I’ve taken CBD for body pain. Did no good. Didn’t pay attention as to diabetes. I’m type 1 for 62 years. Any ideas?❞
Thanks for asking! First up, for reference, here’s our previous main feature on the topic of CBD:
CBD Oil: What Does The Science Say?
There, we touched on CBD’s effects re diabetes:
in mice / in vitro / in humans
In summary, according to the above studies, it…
- lowered incidence of diabetes in non-obese diabetic mice. By this they mean that pancreatic function improved (reduced insulitis and reduced inflammatory Th1-associated cytokine production). Obviously this has strong implications for Type 1 Diabetes in humans—but so far, just that, implications (because you are not a mouse).
- attenuated high glucose-induced endothelial cell inflammatory response and barrier disruption. Again, this is promising, but it was an in vitro study in very controlled lab conditions, and sometimes “what happens in the Petri dish, stays in the Petri dish”—in order words, these results may or may not translate to actual living humans.
- Improved insulin response ← is the main take-away that we got from reading through their numerical results, since there was no convenient conclusion given. Superficially, this may be of more interest to those with type 2 diabetes, but then again, if you have T1D and then acquire insulin resistance on top of that, you stand a good chance of dying on account of your exogenous insulin no longer working. In the case of T2D, “the pancreas will provide” (more or less), T1D, not so much.
So, what else is there out there?
The American Diabetes Association does not give a glowing review:
❝There’s a lot of hype surrounding CBD oil and diabetes. There is no noticeable effect on blood glucose (blood sugar) or insulin levels in people with type 2 diabetes. Researchers continue to study the effects of CBD on diabetes in animal studies. ❞
~ American Diabetes Association
Source: ADA | CBD & Diabetes
Of course, that’s type 2, but most research out there is for type 2, or else have been in vitro or rodent studies (and not many of those, at that).
Here’s a relatively more recent study that echoes the results of the previous mouse study we mentioned; it found:
❝CBD-treated non-obese diabetic mice developed T1D later and showed significantly reduced leukocyte activation and increased FCD in the pancreatic microcirculation.
Conclusions: Experimental CBD treatment reduced markers of inflammation in the microcirculation of the pancreas studied by intravital microscopy. ❞
~ Dr. Christian Lehmann et al.
Read more: Experimental cannabidiol treatment reduces early pancreatic inflammation in type 1 diabetes
…and here’s a 2020 study (so, more recent again) that was this time rats, and/but still more promising, insofar as it was with rats that had full-blown T1D already:
Read in full: Two-weeks treatment with cannabidiol improves biophysical and behavioral deficits associated with experimental type-1 diabetes
Finally, a paper in July 2023 (so, since our previous article about CBD), looked at the benefits of CBD against diabetes-related complications (so, applicable to most people with any kind of diabetes), and concluded:
❝CBDis of great value in the treatment of diabetes and its complications. CBD can improve pancreatic islet function, reduce pancreatic inflammation and improve insulin resistance. For diabetic complications, CBD not only has a preventive effect but also has a therapeutic value for existing diabetic complications and improves the function of target organs❞
…before continuing:
❝However, the safety and effectiveness of CBD are still needed to prove. It should be acknowledged that the clinical application of CBD in the treatment of diabetes and its complications has a long way to go.
The dissecting of the pharmacology and therapeutic role of CBD in diabetes would guide the future development of CBD-based therapeutics for treating diabetes and diabetic complications❞
~ Ibid.
Now, the first part of that is standard ass-covering, and the second part of that is standard “please fund more studies please”. Nevertheless, we must also not fail to take heed—little is guaranteed, especially when it comes to an area of research where the science is still very young.
In summary…
It seems well worth a try, and with ostensibly nothing to lose except the financial cost of the CBD.
If you do, you might want to keep careful track of a) your usual diabetes metrics (blood sugar levels before and after meals, insulin taken), and b) when you took CBD, what dose, etc, so you can do some citizen science here.
Lastly: please remember our standard disclaimer; we are not doctors, let alone your doctors, so please do check with your endocrinologist before undertaking any such changes!
Want to read more?
You might like our previous main feature:
How To Prevent And Reverse Type 2 Diabetes ← obviously this will not prevent or reverse Type 1 Diabetes, but avoiding insulin resistance is good in any case!
If you’re not diabetic and you’ve perhaps been confused throughout this article, then firstly thank you for your patience, and secondly you might like this quick primer:
The Sweet Truth About Diabetes: Debunking Diabetes Myths! ← this gives a simplified but fair overview of types 1 & 2
(for space, we didn’t cover the much less common types 3 & 4; perhaps another time we will)
Meanwhile, take care!
Share This Post
-
Should You Shower Daily?
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.
It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
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 read an article that daily showering is “performative” and doesn’t really give any health benefits, what do you say?❞
We looked to find the article you might be referring to, and this seems to be about a BBC article that was then picked up, rehashed in fewer (but more sensational) words, and widely popularized by the New York Post (not the most scholarly of publications, but it seems to have “done numbers”).
Here’s the BBC article:
BBC | There’s no need to shower every day—here’s why
Looking for the science behind the “Experts say…” claims, none of the articles we found linked to any new research. One of them did link to some old (2005) research:
We also see (in the dearth of scholarly research to cite), a Harvard Health article being cited quite a bit, and this is more helpful and informative than the flashy news articles, without requiring to read through a lot of hard science.
To summarize, Harvard’s Dr. Shmerling says daily showering can:
- Cause/worsen dry skin
- Make skin more permeable to pathogens
- Upset our natural balance of bacteria that are supposed to be there
- Weaken our immune system
Read in full: Harvard Health | Showering daily—is it necessary?
But what if I like showering?
Well, don’t let us stop you. But you might consider using less in the way of shower products. We wrote about this previously, in answer to a different-but-related subscriber question:
10almonds | Body Scrubs: Benefits, Risks, and Guidance
PS…
Handwashing, though? Most people could reasonably do that more often:
Would you like this section to be bigger? If so, send us more questions!
Share This Post
-
Vit D + Calcium: Too Much Of A Good Thing?
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.
Vit D + Calcium: Too Much Of A Good Thing?
- Myth: you can’t get too much calcium!
- Myth: you must get as much vitamin D as possible!
Let’s tackle calcium first:
❝Calcium is good for you! You need more calcium for your bones! Be careful you don’t get calcium-deficient!❞
Contingently, those comments seem reasonable. Contingently on you not already having the right amount of calcium. Most people know what happens in the case of too little calcium: brittle bones, osteoporosis, and so forth.
But what about too much?
Hypercalcemia
Having too much calcium—or “hypercalcemia”— can lead to problems with…
- Groans: gastrointestinal pain, nausea, and vomiting. Peptic ulcer disease and pancreatitis.
- Bones: bone-related pains. Osteoporosis, osteomalacia, arthritis and pathological fractures.
- Stones: kidney stones causing pain.
- Moans: refers to fatigue and malaise.
- Thrones: polyuria, polydipsia, and constipation
- Psychic overtones: lethargy, confusion, depression, and memory loss.
(mnemonic courtesy of Sadiq et al, 2022)
What causes this, and how do we avoid it? Is it just dietary?
It’s mostly not dietary!
Overconsumption of calcium is certainly possible, but not common unless one has an extreme diet and/or over-supplementation. However…
Too much vitamin D
Again with “too much of a good thing”! While keeping good levels of vitamin D is, obviously, good, overdoing it (including commonly prescribed super-therapeutic doses of vitamin D) can lead to hypercalcemia.
This happens because vitamin D triggers calcium absorption into the gut, and acts as gatekeeper to the bloodstream.
Normally, the body only absorbs 10–20% of the calcium we consume, and that’s all well and good. But with overly high vitamin D levels, the other 80–90% can be waved on through, and that is very much Not Good™.
See for yourself:
- Hypercalcemia of Malignancy: An Update on Pathogenesis and Management
- Vitamin D-Mediated Hypercalcemia: Mechanisms, Diagnosis, and Treatment
How much is too much?
The United States’ Office of Dietary Supplements defines 4000 IU (100μg) as a high daily dose of vitamin D, and recommends 600 IU (15μg) as a daily dose, or 800 IU (20μg) if aged over 70.
See for yourself: Vitamin D Fact Sheet for Health Professionals ← there’s quite a bit of extra info there too
Share This Post
Related Posts
-
At The Heart Of Women’s Health
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.
A woman’s heart is a particular thing
For the longest time (and still to a large degree now), “women’s health” is assumed to refer to the health of organs found under a bikini. But there’s a lot more to it than that. We are whole people, with such things as brains and hearts and more.
Today (Valentine’s Day!) we’re focusing on the heart.
A quick recap:
We’ve talked previously about some of these sex differences when it comes to the heart, for example:
Heart Attack: His & Hers (Be Prepared!)
…but that’s fairly common knowledge at least amongst those who are attentive to such things, whereas…
…is much less common knowledge, especially with the ways statins are more likely to make things worse for a lot of women (not all though; see the article for some nuance about that).
We also talked about:
What Menopause Does To The Heart
…which is well worth reading too!
A question:
Why are women twice as likely to die from a heart attack as their age-equivalent male peers? Women develop heart disease later, but die from it sooner. Why is that?
That’s been a question scientists have been asking (and tentatively answering, as scientists do—hypotheses, theories, conclusions even sometimes) for 20 years now. Likely contributing factors include:
- A lack of public knowledge of the different symptoms
- A lack of confidence of bystanders to perform CPR on a woman
- A lack of public knowledge (including amongst prescribers) about the sex-related differences for statins
- A lack of women in cardiology, comparatively.
- A lack of attention to it, simply. Men get heart disease earlier, so it’s thought of as a “man thing”, by health providers as much as by individuals. Men get more regular cardiovascular check-ups, women get a mammogram and go.
Statistically, women are much more likely to die from heart disease than breast cancer:
- Breast cancer kills around 0.02% of us.
- Heart disease kills one in three.
And yet…
❝In a nationwide survey, only 22% of primary care doctors and 42% of cardiologists said they feel extremely well prepared to assess cardiovascular risks in women.
We are lagging in implementing risk prevention guidelines for women.
A lot of women are being told to just watch their cholesterol levels and see their doctor in a year. That’s a year of delayed care.❞
Source: The slowly evolving truth about heart disease and women
(there’s a lot more in that article than we have room for in ours, so do check it out!)
Some good news:
The “bystanders less likely to feel confident performing CPR on a woman” aspect may be helped by the deployment of new automatic external defibrillator, that works from four sides instead of one.
It’s called “double sequential external defibrillation”, and you can learn about it here:
A new emergency procedure for cardiac arrests aims to save more lives—here’s how it works
(it’s in use already in Canada and Aotearoa)
Gentlemen-readers, thank you for your attention to this one even if it was mostly not about you! Maybe someone you love will benefit from being aware of this
On a lighter note…
Since it’s Valentine’s Day, a little more on affairs of the heart…
Is chocolate good for the heart? And is it really an aphrodisiac?
We answered these questions and more in our previous main feature:
Chocolate & Health: Fact or Fiction?
Enjoy!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
What Seasonal Allergies Mean For Your Heart
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.
Most people associate seasonal allergies with itchy eyes and stuffy noses, but the effects can go a lot deeper.
This is because allergic reactions don’t just affect the respiratory system; they trigger chronic inflammation throughout the body, and in fact:
❝Allergic disease is a systemic and inflammatory condition❞
~ Dr. Rauno Joks, whose work we will cite in a moment
The important thing to understand in terms of heart health, is that chronic* systemic inflammation can contribute to coronary artery disease, where plaque buildup in arteries (bearing in mind, arterial plaque is in large part made of dead immune cells) raises the risk of heart attacks and strokes.
*Yes, a season once or twice per year counts as “chronic”.
A large (n=603,140) study found that allergic rhinitis (hay fever) increased the odds of coronary heart disease by 25% and heart attacks by 20%. Asthma, especially during flare-ups, posed an even greater risk:
Beyond biology
The effects aren’t just biological; allergies can limit physical activity, leading to a sedentary lifestyle that harms heart health.
In other words: if you’re not going outdoors because there’s pollen, and you’re not exercising because you’re exhausted, then the rest of your health is going to take a nose-dive (so to speak) too.
So, one more reason to take it seriously and not just dismiss it as “it’s just allergies, I’ll survive”.
Practical takeaways
Some things we can all do:
- Monitor your risk factors; i.e. keep on top of your heart health metrics, especially blood pressure and cholesterol, as well as any known genetic predisposition to cardiovascular disease.
- Watch out for alternative causes: symptoms like fatigue or shortness of breath may not always be allergies; they could signal asthma, reflux (for example if wheezing), or even heart disease. An allergist is a good first port-of-call, though.
- Be cautious with medications: some decongestants / allergy meds / asthma meds can raise blood pressure and/or interfere with other medications. Your pharmacist is the best person to speak to about this; they know this kind of thing much better than doctors, as a rule. And whenever you get a new medication, it is good practice to make a habit of always reading the information leaflet that comes with it, and/or look it up on a reputable website such as Drugs.com or the the BNF, to learn about what it is, how it works, what the risks are, what its contraindications are, etc.
- Don’t ignore warning signs: lightheadedness or chest pain could indicate a heart issue and should be addressed immediately. It’s better to be wrong and temporarily embarrassed, than wrong and permanently dead. Besides, even if it’s not a heart issue, it may be something else that would benefit from attention, so taking it seriously is always a good idea.
Want to know more?
Check out:
- What Your Mucus Says About Your Health
- Antihistamines’ Generation Gap
- Oh, Honey: The Bee’s Knees? ← what science has to say about “honey will inoculate you against allergies”
Take care!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
-
What are plyometric exercises? How all that hopping and jumping builds strength, speed and power
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.
If you’ve ever seen people at the gym or the park jumping, hopping or hurling weighted balls to the ground, chances are they were doing plyometric exercises.
Examples include:
- box jumps, where you repeatedly leap quickly on and off a box
- lateral skater hops, where you bound from side to side like a speeding ice skater
- rapidly throwing a heavy medicine ball against a wall, or to the ground
- single leg hops, which may involve hopping on the spot or through an obstacle course
- squat jumps, where you repeatedly squat and then launch yourself into the air.
Photo by cottonbro studio/Pexels There are many more examples of plyometric exercises.
What ties all these moves together is that they use what’s known as the “stretch shortening cycle”. This is where your muscles rapidly stretch and then contract.
Runners routinely practise plyometric exercises to improve explosive leg strength. WoodysPhotos/Shutterstock Potential benefits
Research shows incorporating plyometric exercise into your routine can help you:
- jump higher
- sprint faster
- reduce the chances of getting a serious sporting injuries such as anterior cruciate ligament (ACL) tears
- build muscle strength
- improve bone mineral density (especially when combined with resistance training such as weight lifting), which is particularly important for women and older people at risk of falls.
Studies have found plyometric exercises can help:
- older people who want to retain and build muscle strength, boost bone health, improve posture and reduce the risk of falls
- adolescent athletes who want to build the explosive strength needed to excel in sports such as athletics, tennis, soccer, basketball and football
- female athletes who want to jump higher or change direction quickly (a useful skill in many sports)
- endurance runners who want to boost physical fitness, run time and athletic performance.
And when it comes to plyometric exercises, you get out what you put in.
Research has found the benefits of plyometrics are significantly greater when every jump was performed with maximum effort.
Jumping can help boost bone strength. WoodysPhotos/Shutterstock Potential risks
All exercise comes with risk (as does not doing enough exercise!)
Plyometrics are high-intensity activities that require the body to absorb a lot of impact when landing on the ground or catching medicine balls.
That means there is some risk of musculoskeletal injury, particularly if the combination of intensity, frequency and volume is too high.
You might miss a landing and fall, land in a weird way and crunch your ankle, or get a muscle tear if you’re overdoing it.
The National Strength and Conditioning Association, a US educational nonprofit that uses research to support coaches and athletes, recommends:
- a maximum of one to three plyometric sessions per week
- five to ten repetitions per set and
- rest periods of one to three minutes between sets to ensure complete muscle recovery.
With the right guidance, jumps can be safe for older people and may help reduce the risk of falls as you age. Realstock/Shutterstock One meta-analysis, where researchers looked at many studies, found plyometric training was feasible and safe, and could improve older people’s performance, function and health.
Overall, with appropriate programming and supervision, plyometric exercise can be a safe and effective way to boost your health and athletic performance.
Justin Keogh, Associate Dean of Research, Faculty of Health Sciences and Medicine, Bond University and Mandy Hagstrom, Senior Lecturer, Exercise Physiology. School of Health Sciences, UNSW Sydney
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
