Just One Heart – by Dr. Jonathan Fisher
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First, what this is not: a book to say eat fiber, go easy on the salt, get some exercise, and so forth.
What this rather is: a book about the connection between the heart and mind; often written poetically, the simple biological reality is that our emotional state does have a genuine impact on our heart health, and as such, any effort to look after our heart (healthwise) would be incomplete without an effort to look after our heart (emotionally).
Dr. Fisher talks about the impact of stress and uncertainty, as well as peace and security, on heart health—and then, having sorted emotional states into “heart breakers” and “heart wakers”, he goes about laying out a plan for what is, emotionally and thus also physiologically, good for our heart.
Chapter by chapter, he walks us through the 7 principles to live by:
- Steadiness: how to steady your heart amid chaos
- Wisdom: how to develop a wise heart in uncertain times
- Openness: how to safely open your heart in a threatening world
- Wholeness: how to show up with your whole heart without going to pieces
- Courage: how to lead with a courageous heart when fear surrounds you
- Lightness: how to live with a light heart in a heavy world
- Warmth: how to love with a warm heart when life feels cold
The style is anything but clinical; it’s well-written, certainly, and definitely informed in part by his medical understanding of the heart, but it’s entirely the raw human element that shines throughout, and that makes the ideas a lot more tangible.
Bottom line: if you’d like your heart to be healthy (cardiac health) and your heart to be healthy (emotional health), this book is a very worthwhile read.
Click here to check out Just One Heart, and take care of yours!
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The Circadian Rhythm: Far More Than Most People Know
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The Circadian Rhythm: Far More Than Most People Know
This is Dr. Satchidananda (Satchin) Panda, the scientist behind the discovery of the blue-light sensing cell type in the retina, and the many things it affects. But, he’s discovered more…
First, what you probably know (with a little more science)
Dr. Panda discovered that melanopsin, a photopigment, is “the primary candidate for photoreceptor-mediated entrainment”.
To put that in lay terms, it’s the brain’s go-to for knowing approximately what time of day or night it is, according to how much light there is (or isn’t), and how long it has (or hasn’t) been there.
But… the brain’s “go-to” isn’t the only method. By creating mice without melanopsin, he was able to find that they still keep a circadian rhythm, even in complete darkness:
Melanopsin (Opn4) Requirement for Normal Light-Induced Circadian Phase Shifting
In other words, it was a helpful, but not completely necessary, means of keeping a circadian rhythm.
So… What else is going on?
Dr. Panda and his team did a lot of science that is well beyond the scope of this main feature, but to give you an idea:
- With jargon: it explored the mechanisms and transcription translation negative feedback loops that regulate chronobiological processes, such as a histone lysine demathlyase 1a (JARID1a) that enhances Clock-Bmal1 transcription, and then used assorted genomic techniques to develop a model for how JARID1a works to moderate the level of Per transcription by regulating the transition between its repression and activation, and discovered that this heavily centered on hepatic gluconeogenesis and glucose homeostasis, facilitated by the protein cryptochrome regulating the fasting signal that occurs when glucagon binds to a G-protein coupled receptor, triggering CREB activation.
- Without jargon: a special protein tells our body how to respond to eating/fasting at different times of day—and conversely, certain physiological responses triggered by eating/fasting help us know what time of day it is.
- Simplest: our body keeps on its best cycle if we eat at the same time every day
This is important, because our circadian rhythm matters for a lot more than sleeping/waking! Take hormones, for example:
- Obvious hormones: testosterone and estrogen peak in the mornings around 9am, progesterone peaks between 10pm and 2am
- Forgotten hormones: cortisol peaks in the morning around 8:30am, melatonin peaks between 10pm and 2am
- More hormones: ghrelin (hunger hormone) peaks around 10am, leptin (satiety hormone) peaks 20 minutes after eating a certain amount of satiety-triggering food (protein does this most quickly), insulin is heavily tied to carbohydrate intake, but will still peak and trough according to when the body expects food.
What does this mean for us in practical terms?
For a start, it means that intermittent fasting can help guard against metabolic and related diseases (including inflammation, and thus also cancer, diabetes, arthritis, and more) a lot more if we practice it with our circadian rhythm in mind.
So that “8-hour window” for eating, that many intermittent fasting practitioners adhere to, is going to do much, much better if it’s 10am to 6pm, rather than, say, 4pm to midnight.
Additionally, Dr. Panda and his team found that a 12-hour eating window wasn’t sufficient to help significantly.
Some other take-aways:
- For reasons beyond the scope of this article, it’s good to exercise a) early b) before eating, so getting in some exercise between 8.30am and 10am is ideal
- It also means it’s beneficial to “front-load” eating, so a large breakfast at 10am, and smaller meals/snacks afterwards, is best.
- It also means that getting sunlight (even if cloud-covered) around 8.30am helps guard against metabolic disorders a lot, since the light remains the body’s go-to way of knowing the time.
- We realize that sunlight is not available at 8.30am at all latitudes at all times of year. Artificial is next-best.
- It also means sexual desire will typically peak in men in the mornings (per testosterone) and women in the evenings (per progesterone), but this is just an interesting bit of trivia, and not so relevant to metabolic health
What to do next…
Want to stabilize your own circadian rhythm in the best way, and also help Dr. Panda with his research?
His team’s (free!) app, “My Circadian Clock”, can help you track and organize all of the body’s measurable-by-you circadian events, and, if you give permission, will contribute to what will be the largest-yet human study into the topics covered today, to refine the conclusions and learn more about what works best.
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DVT Risk Management Beyond The Socks
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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 I am at higher risk of DVT after having hip surgery, any advice beside compression stockings?❞
First of all, a swift and easy recovery to you!
Surgery indeed increases the risk of deep vein thrombosis (henceforth: DVT), and hip or knee surgery especially so, for obvious reasons.
There are other risk factors you can’t control, like genetics (family history of DVT as an indicator) and age, but there are some that you can, including:
- smoking (so, ideally don’t; do speak to your doctor before quitting though, in case withdrawal might be temporarily worse for you than smoking)
- obesity (so, losing weight is good if overweight, but if this is going to happen, it’ll mostly happen in the kitchen not the gym, which may be a relief as you’re probably not the very most up for exercise at present)
- See also: Lose Weight, But Healthily
- sedentariness (so, while you’re probably not running marathons right now, please do try to keep moving, even if only gently)
Beyond that, yes compression socks, but also frequent gentle massage can help a lot to avoid clots forming.
Also, no surprises, a healthy diet will help, especially one that’s good for general heart health. Check out for example the Mediterranean DASH diet:
Four Ways To Upgrade The Mediterranean Diet
Also, obviously, speak with your doctor/pharmacist if you haven’t already about possible medications, including checking whether any of your current medications increase the risk and could be swapped for something that doesn’t.
Take care!
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Overcoming Tendonitis – by Dr. Steven Low & Dr. Frank Skretch
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If you assumed tendonitis to be an inflammatory condition, you’re not alone. However, it’s not; the “-itis” nomenclature is a misnomer, and while one can rarely go wrong with reducing chronic/systemic inflammation, it’s not the cure for tendonitis.
What, then, is tendonitis and what does cure it? It’s a non-inflammatory proliferation disorder, meaning, something is growing (or in this case, simply being replaced) in a way it shouldn’t. As to fixing it, that’s more complex.
This book does cover 20 interventions (sorted into “major” and “minor”), ranging from exercise therapies to surgery, with many things between. It also examines popular myths that do not help, such as rest, ice, heat, and analgesics.
The style of this book is hard science, but don’t worry, it explains everything along the way. It does however mean that if you’re not very accustomed to wading through scientific material, you can’t just dip into the middle of the book and be guaranteed to understand what’s going on. Indeed, before even getting to discussing tendonitis/tendinopathy, the first chapter is very reassuringly dedicated to “understanding the levels and classification of evidence in studies”, along with the assorted scales and guidelines of the Center for Evidence-Based Medicine.
The rest, however, is about the etiology, diagnosis, and treatment of tendonitis and tendinopathy more generally. One interesting thing is that, according to the abundant high-quality evidence presented in this book, what works for one body part’s tendonitis does not necessarily work for another body part, so we get quite a part-by-part rundown.
Bottom line: this book has a wealth of useful, applicable information about management of tendonitis, making it indispensable if you or a loved one suffer from such—but settle in, because it’s not a light read.
Click here to check out Overcoming Tendonitis, and overcome tendonitis!
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Pine Nuts vs Macadamia Nuts – Which is Healthier?
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Our Verdict
When comparing pine nuts to macadamias, we picked the pine nuts.
Why?
In terms of macros, it’s subjective depending on what you want to prioritize; the two nuts are equal in carbs, but pine nuts have more protein and macadamias have more fiber. We’d generally prioritize the fiber, which so far would give macadamias a win in this category, but if you prefer the protein, then consider it pine nuts. Next, we must consider fats; macadamias have slightly more fat, and of which, proportionally more saturated fat, resulting in 3x the total saturated fat compared to pine nuts, gram for gram. With this in mind, we consider this category a tie or a marginal nominal win for pine nuts.
In the category of vitamins, pine nuts have more of vitamins A, B2, B3, B9, E, K, and choline, while macadamias have more of vitamins B1, B5, B6, and C. A clear win for pine nuts this time, especially with pine nuts having more than 17x the vitamin E of macadamias.
When it comes to minerals, pine nuts have more copper, iron, magnesium, manganese, phosphorus, potassium, and zinc, while macadamias have more calcium and selenium. Another easy win for pine nuts.
In short, enjoy either or both (diversity is good), but pine nuts are the healthier by most metrics.
Want to learn more?
You might like to read:
Why You Should Diversify Your Nuts
Enjoy!
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What Size Breakfast Is Best, By Science?
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“Breakfast is the most important meal of the day”, the popular wisdom goes. But, what should it consist of, and how much should we be eating for breakfast?
It has been previously established that it is good if breakfast is the largest meal of the day:
…with meals getting progressively smaller thereafter.
Of course, very many people do the inverse: small (or skipped) breakfast, moderate lunch, larger dinner. This, however, is probably more a result of when eating fits around the modern industrialized workday (and thus gets normalized), rather than actual health considerations.
So, what’s the latest science?
A plucky band of researchers led by Dr. Karla-Alejandra Pérez-Vega investigated the importance of breakfast in the context of heart health. This research was done as part of a larger study into the effects of the Mediterranean Diet on cardiovascular health, so if anyone wants a quick recap before we carry on, then:
The Mediterranean Diet: What Is It Good For? ← the answer, by the way, is “pretty much everything”
…and there are also different versions that each use the Mediterranean Diet as the core, while focussing extra on a different area of health, including one to make it extra heart-healthy:
Four Ways To Upgrade The Mediterranean ← most anti-inflammatory / gut-healthiest / heart-healthiest / brain-healthiest
What they found
In their sample population (n=383) of Spanish adults aged 55–75 with pre-diagnosed metabolic syndrome who, as part of the intervention of this 36-month interventional study, had now for the past 36 months been on a Mediterranean diet but without specific guidance on portion sizes:
- Participants with insufficient breakfast energy intake had the highest adiposity (which is a measure of body fat expressed as a percentage of total mass)
- Participants with low or high (but not moderate) breakfast energy intake had the larger BMI and waist circumference over time
- Participants with low or high (but not moderate) breakfast energy intake had higher triglyceride and lower HDL (good) cholesterol levels
- Participants who consumed 20–30% of their daily calories at breakfast enjoyed the greatest improvements in lipid profiles, with lower triglycerides and higher HDL (good) cholesterol levels
- Participants with lower breakfast quality (lower adherence to Mediterranean Diet) had higher blood pressure levels
- Participants with lower breakfast quality (lower adherence to Mediterranean Diet) had higher blood sugar levels
- Participants with lower breakfast quality (lower adherence to Mediterranean Diet) had lower estimated glomerular filtration rate (which is an indicator of kidney function)
- Participants with higher breakfast quality (higher adherence to Mediterranean Diet) had lower waist circumference, higher HDL cholesterol, and better kidney function
You can see the paper itself here in the Journal of Nutrition, Health, and Aging:
What this means
According to this research, the heart-healthiest breakfast is:
- not skipped
- Mediterranean Diet adherent
- within the range of of 20–30% of the total calories for the day
Want to make it even better?
Consider:
Before You Eat Breakfast: 3 Surprising Facts About Intermittent Fasting
Enjoy!
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Exercising With Less Soreness!
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An Ancient Sports Drink & Healing Potion, Now With Modern Science?
Ginseng has many health benefits, we talked about 8 of them in this previous edition of 10almonds:
…but we’ve somehow never yet done a Monday’s Research Review for it! We must do one, one of these days. For now though, it’s Saturday’s Life Hacks, and we’re here with…
Speeding up recovery after muscle damage
We talked about this topic before too:
Overdone It? How To Speed Up Recovery After Exercise
…which gives very good advice (including some supplements that help), but was published before the latest science that we’re going to talk about today:
A team of researchers all so very recently found that ginseng also reduces muscular fatigue and, importantly, hastens recovery of muscle damage caused by exercise.
And that’s not all…
❝It should also be noted that, by reducing fatigue, taking ginseng on a regular basis may also help reduce the risk of injury, particularly in the case of muscles or ligaments, which can in turn improve athletic performance.❞
This means that it can be taken regularly and prophylactically, as they found:
❝taking ginseng systematically for a long time can mitigate the response of the biological markers, mainly creatine kinase (CK) and interleukin 6 (IL-6), responsible for exercise-induced muscle damage and inflammation.❞
You may be thinking “isn’t creatine good?” and yes, yes it is:
Creatine: Very Different For Young & Old People
…however, creatine kinase is not creatine. Creatine kinase (CK) is an enzyme that affects the creatine (to put it in few words, without getting into the fascinating biochemistry of this). Now, it’s necessary for us to have some CK (or else we wouldn’t be able to do what we need to with the creatine), but elevated levels often indicate some sort of problem going on:
Approach to asymptomatic creatine kinase elevation
…so ginseng keeping those things balanced is a good thing.
The study
We’ve talked a lot about the findings and what they mean, but if you’d like to read the paper for yourself, you can read it here:
Effect of Ginseng Intake on Muscle Damage Induced by Exercise in Healthy Adults
Where to get ginseng
If you’d like to take ginseng as a supplement, then there are many ways to do so, with the most common being capsules or ginseng tea, which has an interesting and distinctive taste, and is very refreshing. Here are examples on Amazon, for your convenience:
Enjoy!
Don’t Forget…
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