New News From The Centenarian Blue Zones
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From Blue To Green…
We sometimes write about supercentenarians, which word is usually used in academia to refer to people who are not merely over 100 years of age, but over 110 years. These people can be found in many countries, but places where they have been found to be most populous (as a percentage of the local population) have earned the moniker “Blue Zones”—of which Okinawa and Sardinia are probably the most famous, but there are others too.
This is in contrast to, for example “Red Zones”, a term often used for areas where a particular disease is endemic, or areas where a disease is “merely” epidemic, but particularly rife at present.
In any case, back to the Blue Zones, where people live the longest and healthiest—because the latter part is important too! See also:
- Lifespan: how long we live
- Healthspan: how long we stay healthy (portmanteau of “healthy lifespan”)
Most of our readers don’t live in a Blue Zone (in fact, many live in a COVID Red Zone, a diabetes Red Zone, and a heart disease Red Zone), but that doesn’t mean we can’t all take tips from the Blue Zones and apply them, for example:
- The basics: The Blue Zones’ Five Pillars Of Longevity
- Going beyond: The Five Key Traits Of Healthy Aging
You may be wondering… How much good will this do me? And, we do have an answer for that:
When All’s Said And Done, How Likely Are You To Live To 100?
Now that we’re all caught-up…
The news from the Blues
A team of researchers did a big review of observational studies of centenarians and near-centenarians (aged 95+). Why include the near-centenarians, you ask? Well, most of the studies are also longitudinal, and if we’re doing an observational study of the impact of lifestyle factors on a 100-year-old, it’s helpful to know what they’ve been doing recently. Hence nudging the younger-end cutoff a little lower, so as to not begin each study with fresh-faced 100-year-olds whom we know nothing about.
Looking at thousands of centenarians (and near-centenarians, but also including some supercentenarians, up the age of 118), the researchers got a lot of very valuable data, far more than we have room to go into here (do check out the paper at the bottom of this article, if you have time; it’s a treasure trove of data), but one of the key summary findings was a short list of four factors they found contributed the most to extreme longevity:
- A diverse diet with low salt intake: in particular, a wide variety of plant diversity, including protein-rich legumes, though fish featured prominently also. On average they got 57% and 65% of their energy intake from carbohydrates, 12% to 32% from protein, and 27% to 31% from fat. As for salt, they averaged 1.6g of sodium per day, which is well within the WHO’s recommendation of averaging under 2g of sodium per day. As a matter of interest, centenarians in Okinawa itself averaged 1.1g of sodium per day.
- Low medication use: obviously there may be a degree of non-causal association here, i.e. the same people who just happened to be healthier and therefore lived longer, correspondingly took fewer medications—they took fewer medications because they were healthier; they weren’t necessarily healthier because they took fewer medications. That said, overmedication can be a big problem, especially in places with a profit motive like the US, and can increase the risk of harmful drug interactions, and side effects that then need more medications to treat the side effects, as well as direct iatrogenic damage (i.e. this drug treats your condition, but as the cost of harming you in some other way). Naturally, sometimes we really do need meds, but it’s a good reminder to do a meds review with one’s doctor once in a while, and see if everything’s still of benefit.
- Getting good sleep: not shocking, and this one’s not exactly news. But what may be shocking is that 68% of centenarians reported consistently getting enough good-quality sleep. To put that into perspective, only 35% of 10almonds readers reported regularly getting sleep in the 7–9 hours range.
- Rural living environment: more than 75% of the centenarians and near-centenarians lived in rural areas. This is not usually something touted as a Blue Zones thing on lists of Blue zones things, but this review strongly highlighted it as very relevant. In the category of things that are more obvious once it’s pointed out, though, this isn’t necessarily such a difference between “country folk” and “city folk”, so much as the ability to regularly be in green spaces has well-established health benefits physically, mentally, and both combined (such as: neurologically).
And showing that yes, even parks in cities make a significant difference:
Want to know more?
You can read the study in full here:
A systematic review of diet and medication use among centenarians and near-centenarians worldwide
Take care!
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Gut-Healthy Labneh Orecchiette
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Labneh (a sort of yogurt-cheese made from strained yogurt) is a great probiotic, and there’s plenty of resistant starch in this dish too, from how we cook, cool, and reheat the pasta. Add to this the lycopene from the tomatoes, the ergothioneine from the mushrooms, and the healthful properties of the garlic, black pepper, and red chili, and we have a very healthy dish!
You will need
- 10 oz labneh (if you can’t buy it locally, you can make your own by straining Greek yogurt through a muslin cloth, suspended over a bowl to catch the water that drips out, overnight—and yes, plant-based is also fine if you are vegan, and the gut benefits are similar because unlike vegan cheese, vegan yogurt is still fermented)
- 6 oz wholegrain orecchiette (or other pasta, but this shape works well for this sauce)
- ¼ bulb garlic, grated
- Juice of ½ lemon
- Large handful chopped parsley
- Large handful chopped dill
- 9 oz cherry tomatoes, halved
- 9 oz mushrooms (your choice what kind), sliced (unless you went for shiitake or similar, which don’t need it due to already being very thin)
- 2 tsp black pepper, coarse ground
- 1 tsp red chili flakes
- ¼ tsp MSG or ½ tsp low-sodium salt
- Extra virgin olive oil
Method
(we suggest you read everything at least once before doing anything)
1) Cook the pasta as you normally would. Drain, and rinse with cold water. Set aside.
2) Combine the labneh with the garlic, black pepper, dill, parsley, and lemon juice, in a large bowl. Set aside.
3) Heat a little olive oil in a skillet; add the chili flakes, followed by the mushrooms. Cook until soft and browned, then add the tomatoes and fry for a further 1 minute—we want the tomatoes to be blistered, but not broken down. Stir in the MSG/salt, and take off the heat.
4) Refresh the pasta by passing a kettle of boiling water through it in a colander, then add the hot pasta to the bowl of labneh sauce, stirring to coat thoroughly.
5) Serve, spooning the mushrooms and tomatoes over the labneh pasta.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Making Friends With Your Gut (You Can Thank Us Later)
- Lycopene’s Benefits For The Gut, Heart, Brain, & More
- “The Longevity Vitamin” (That’s Not A Vitamin)
Take care!
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Treat Your Own Knee – by Robin McKenzie
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First, a note about the author: he’s a physiotherapist and not a doctor, but with 40 years of practice to his name and 33 letters after his name (CNZM OBE FCSP (Hon) FNZSP (Hon) Dip MDT Dip MT), he seems to know his stuff.
The book covers recognizing the difference between arthritis, degeneration, or normal wear and tear, before narrowing down what your actual problem is and what can be done about it.
While there are many possible causes of knee pain (and by causes, we mean the first-level cause, such as “bad posture” or “old sports injury” or “inflammatory diet” or “repetitive strain” etc, not second-level causes that are also symptoms, like inflammation), McKenzie’s approach involves customizing his system to your body’s specific problems and needs. That’s what most of the book is about.
The style is direct and to-the-point; there’s no sensationalization here nor a feel of being sold anything. There’s lots of science scattered throughout, but all with the intent of enabling the reader to understand what’s going on with the problems, processes, and solutions, and why/how the things that work, work. Where there are exercises offered they are clearly-described and well-illustrated.
Bottom line: this is not a fancy book but it is an effective one. If you have knee pain, this is a very worthwhile one to read.
Click here to check out Treat Your Own Knee, and treat your own knee!
PS: if you have musculoskeletal problems elsewhere in your body, you might want to check out the rest of his body parts series (back, hip, neck, wrist, ankle, etc) for the one that’s tailored to your specific problem.
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When the Body Says No – by Dr. Gabor Maté
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We know that chronic stress is bad for us because of what it does to our cortisol levels, so what is the rest of this book about?
Dr. Gabor Maté is a medical doctor, heavily specialized in the impact of psychological trauma on long term physical health.
Here, he examies—as the subtitle promises—the connection between stress and disease. As it turns out, it’s not that simple.
We learn not just about the impact that stress has on our immune system (including increasing the risk of autoimmune disorders like rheumatoid arthritis), the cardiovascular system, and various other critical systems fo the body… But also:
- how environmental factors and destructive coping styles contribute to the onset of disease, and
- how traumatic events can warp people’s physical perception of pain
- how certain illnesses are associated with particular personality types.
This latter is not “astrology for doctors”, by the way. It has more to do with what coping strategies people are likely to employ, and thus what diseases become more likely to take hold.
The book has practical advice too, and it’s not just “reduce your stress”. Ideally, of course, indeed reduce your stress. But that’s a) obvious b) not always possible. Rather, Dr. Maté explains which coping strategies result in the least prevalence of disease.
In terms of writing style, the book is very much easy-reading, but be warned that (ironically) this isn’t exactly a feel-good book. There are lot of tragic stories in it. But, even those are very much well-worth reading.
Bottom line: if you (and/or a loved one) are suffering from stress, this book will give you the knowledge and understanding to minimize the harm that it will otherwise do.
Click here to check out When The Body Says No, and take good care of yourself; you’re important!
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Minimize Aging’s Metabolic Slump
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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 know that metabolism slows with age, are there any waypoints or things to look out for? I don’t know whether I should be eating less, or doing less, or taking some other approach entirely. What’s recommended?❞
Age and sex count for a lot with this one! As metabolism is in large part directed by hormones:
- For men, declining testosterone (often from around 45 onwards) can result in a metabolic slump
- For women, declining estrogen with the menopause does have an effect, but progesterone is the bigger factor for metabolism in the sense you are talking about.
In both cases, simply taking more of those hormones can often help, but please of course speak with an endocrinologist if that seems like a possible option for you, as your circumstances (and physiology) may vary.
If you’d like to go to that conversation well-armed with information, here are some good starting points, by the way:
- The Testosterone Drop, & Topping Up Testosterone
- Menopausal HRT: Bioidentical vs Animal (It Makes A Difference!)
And if you’re wondering about the natural vs pharmaceutical approaches…
- What Does “Balance Your Hormones” Even Mean?
- What You Should Have Been Told About The Menopause Beforehand
About your metabolic base rate
We tend to think of “fast metabolism good, slow metabolism bad”, and that’s a reasonable general premise… but it’s not necessarily always so.
After all, if you could double your metabolism and keep it there all the time, without changing anything else, well… You’ve heard the phrase “burning the candle at both ends”? So, having at least some downtime is important too.
See for example: Sleep Deprivation & Diabetes Risk
What’s critical, when it comes to base metabolic rate, is that your body must be capable of adequately processing what you are putting into it. Because if your body can’t keep up with the input, it’ll just start storing the excess chemical energy in the quickest and easiest way possible.
…which is a fast track to metabolic disorder in general and type 2 diabetes in particular. For more on the science and mechanics of this, see:
How To Prevent And Reverse Type 2 Diabetes
As for portion sizes…
Your body knows what you need, so listen to it. There is no external source of knowledge that can tell you how much food you need better than your own body itself can tell you.
You may be wondering “how exactly do I listen to my body, though?”, in which case, check out:
The Kitchen Doctor: Interoception & Mindful Eating
As for exercise…
When you exercise, your metabolic rate temporarily increases. After most kinds of exercise, your metabolism slumps again afterwards to compensate.
There are two ways to avoid this:
- Exercise Less, Move More ← it’s about maximizing time spent not sitting still
- High Intensity Interval Training ← a special kind of exercise, the only one known to keep the metabolism running high for a couple of hours afterwards, with no counter-slump
…which makes it pretty effective indeed
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Keeping Your Kidneys Healthy (Especially After 60)
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Keeping your kidneys happy: it’s more than just hydration!
Your kidneys are very busy organs. They filter waste products, balance hydration, pH, salt, and potassium. They also make some of our hormones, and are responsible for regulating red blood cell production too. They also handle vitamin D in a way our bodies would not work without, making them essential for calcium absorption and the health of our bones, and even muscular function.
So, how to keep them in good working order?
Yes, hydrate
This is obvious and may go without saying, but we try to not leave important things without saying. So yes, get plenty of water, spread out over the day (you can only usefully absorb so much at once!). If you feel thirsty, you’re probably already dehydrated, so have a little (hydrating!) drink.
Don’t smoke
It’s bad for everything, including your kidneys.
Look after your blood
Not just “try to keep it inside your body”, but also:
- Keep your blood sugar levels healthy (hyperglycemia can cause kidney damage)
- Keep your blood pressure healthy (hypertension can cause kidney damage)
Basically, your kidneys’ primary job of filtering blood will go much more smoothly if that blood is less problematic on the way in.
Watch your over-the-counter pill intake
A lot of PRN OTC NSAIDs (PRN = pro re nata, i.e. you take them as and when symptoms arise) (NSAIDs = Non-Steroidal Anti-Inflammatory Drugs, such as ibuprofen for example) can cause kidney damage if taken regularly.
Many people take ibuprofen (for example) constantly for chronic pain, especially the kind cause by chronic inflammation, including many autoimmune diseases.
It is recommended to not take them for more than 10 days, nor more than 8 per day. Taking more than that, or taking them for longer, could damage your kidneys temporarily or permanently.
Read more: National Kidney Foundation: Advice About Pain Medicines
See also: Which Drugs Are Harmful To Your Kidneys?
Get a regular kidney function checkup if you’re in a high risk group
Who’s in a high risk group?
- If you’re over 60
- If you have diabetes
- If you have cardiovascular disease
- If you have high blood pressure
- If you believe, or know, you have existing kidney damage
The tests are very noninvasive, and will be a urine and/or blood test.
For more information, see:
Kidney Testing: Everything You Need to Know
Take care!
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Food and exercise can treat depression as well as a psychologist, our study found. And it’s cheaper
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Around 3.2 million Australians live with depression.
At the same time, few Australians meet recommended dietary or physical activity guidelines. What has one got to do with the other?
Our world-first trial, published this week, shows improving diet and doing more physical activity can be as effective as therapy with a psychologist for treating low-grade depression.
Previous studies (including our own) have found “lifestyle” therapies are effective for depression. But they have never been directly compared with psychological therapies – until now.
Amid a nation-wide shortage of mental health professionals, our research points to a potential solution. As we found lifestyle counselling was as effective as psychological therapy, our findings suggest dietitians and exercise physiologists may one day play a role in managing depression.
What did our study measure?
During the prolonged COVID lockdowns, Victorians’ distress levels were high and widespread. Face-to-face mental health services were limited.
Our trial targeted people living in Victoria with elevated distress, meaning at least mild depression but not necessarily a diagnosed mental disorder. Typical symptoms included feeling down, hopeless, irritable or tearful.
We partnered with our local mental health service to recruit 182 adults and provided group-based sessions on Zoom. All participants took part in up to six sessions over eight weeks, facilitated by health professionals.
Half were randomly assigned to participate in a program co-facilitated by an accredited practising dietitian and an exercise physiologist. That group – called the lifestyle program – developed nutrition and movement goals:
- eating a wide variety of foods
- choosing high-fibre plant foods
- including high quality fats
- limiting discretionary foods, such as those high in saturated fats and added sugars
- doing enjoyable physical activity.
The second group took part in psychotherapy sessions convened by two psychologists. The psychotherapy program used cognitive behavioural therapy (CBT), the gold standard for treating depression in groups and when delivered remotely.
In both groups, participants could continue existing treatments (such as taking antidepressant medication). We gave both groups workbooks and hampers. The lifestyle group received a food hamper, while the psychotherapy group received items such as a colouring book, stress ball and head massager.
Lifestyle therapies just as effective
We found similar results in each program.
At the trial’s beginning we gave each participant a score based on their self-reported mental health. We measured them again at the end of the program.
Over eight weeks, those scores showed symptoms of depression reduced for participants in the lifestyle program (42%) and the psychotherapy program (37%). That difference was not statistically or clinically meaningful so we could conclude both treatments were as good as each other.
There were some differences between groups. People in the lifestyle program improved their diet, while those in the psychotherapy program felt they had increased their social support – meaning how connected they felt to other people – compared to at the start of the treatment.
Participants in both programs increased their physical activity. While this was expected for those in the lifestyle program, it was less expected for those in the psychotherapy program. It may be because they knew they were enrolled in a research study about lifestyle and subconsciously changed their activity patterns, or it could be a positive by-product of doing psychotherapy.
There was also not much difference in cost. The lifestyle program was slightly cheaper to deliver: A$482 per participant, versus $503 for psychotherapy. That’s because hourly rates differ between dietitians and exercise physiologists, and psychologists.
What does this mean for mental health workforce shortages?
Demand for mental health services is increasing in Australia, while at the same time the workforce faces worsening nation-wide shortages.
Psychologists, who provide about half of all mental health services, can have long wait times. Our results suggest that, with the appropriate training and guidelines, allied health professionals who specialise in diet and exercise could help address this gap.
Lifestyle therapies can be combined with psychology sessions for multi-disciplinary care. But diet and exercise therapies could prove particularly effective for those on waitlists to see a psychologists, who may be receiving no other professional support while they wait.
Many dietitians and exercise physiologists already have advanced skills and expertise in motivating behaviour change. Most accredited practising dietitians are trained in managing eating disorders or gastrointestinal conditions, which commonly overlap with depression.
There is also a cost argument. It is overall cheaper to train a dietitian ($153,039) than a psychologist ($189,063) – and it takes less time.
Potential barriers
Australians with chronic conditions (such as diabetes) can access subsidised dietitian and exercise physiologist appointments under various Medicare treatment plans. Those with eating disorders can also access subsidised dietitian appointments. But mental health care plans for people with depression do not support subsidised sessions with dietitians or exercise physiologists, despite peak bodies urging them to do so.
Increased training, upskilling and Medicare subsidies would be needed to support dietitians and exercise physiologists to be involved in treating mental health issues.
Our training and clinical guidelines are intended to help clinicians practising lifestyle-based mental health care within their scope of practice (activities a health care provider can undertake).
Future directions
Our trial took place during COVID lockdowns and examined people with at least mild symptoms of depression who did not necessarily have a mental disorder. We are seeking to replicate these findings and are now running a study open to Australians with mental health conditions such as major depression or bipolar disorder.
If this article has raised issues for you, or if you’re concerned about someone you know, call Lifeline on 13 11 14.
Adrienne O’Neil, Professor, Food & Mood Centre, Deakin University and Sophie Mahoney, Associate Research Fellow, Food and Mood Centre, Deakin University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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