How To Improve Your Heart Rate Variability
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How’s your heart rate variability?
The hallmarks of a good, strong cardiovascular system include a medium-to-low resting heart rate (for adults: under 60 beats per minute is good; under 50 is typical of athletes), and healthy blood pressure (for adults: under 120/80, while still above 90/60, is generally considered good).
Less talked-about is heart rate variability, but it’s important too…
What is heart rate variability?
Heart rate variability is a measure of how quickly and easily your heart responds to changes in demands placed upon it. For example:
- If you’re at rest and then start running your fastest (be it for leisure or survival or anything in between), your heart rate should be able to jump from its resting rate to about 180% of that as quickly as possible
- When you stop, your heart rate should be able to shift gears back to your resting rate as quickly as possible
The same goes, to a commensurately lesser extent, to changes in activity between low and moderate, or between moderate and high.
- When your heart can change gears quickly, that’s called a high heart rate variability
- When your heart is sluggish to get going and then takes a while to return to normal after exertion, that’s called a low heart rate variability.
The rate of change (i.e., the variability) is measured in microseconds per beat, and the actual numbers will vary depending on a lot of factors, but for everyone, higher is better than lower.
Aside from quick response to crises, why does it matter?
If heart rate variability is low, it means the sympathetic nervous system is dominating the parasympathetic nervous system, which means, in lay terms, your fight-or-flight response is overriding your ability to relax.
See for example: Stress and Heart Rate Variability: A Meta-Analysis and Review of the Literature
This has a lot of knock-on effects for both physical and mental health! Your heart and brain will take the worst of this damage, so it’s good to improve things for them impossible.
This Saturday’s Life Hacks: how to improve your HRV!
Firstly, the Usual Five Things™:
- A good diet (that avoids processed foods)
- Good exercise (that includes daily physical activity—more often is more important than more intense!)
- Good sleep (7–9 hours of good quality sleep per night)
- Reduce or eliminate alcohol consumption (this is dose-dependent; any reduction is an improvement)
- Don’t smoke (just don’t)
Additional regular habits that help a lot:
- Breathing exercises, mindfulness, meditation
- Therapy, especially CBT and DBT
- Stress-avoidance strategies, for example:
- Get (and maintain) your finances in good order
- Get (and maintain) your relationship(s) in good order
- Get (and maintain) your working* life in good order
*Whatever this means to you. If you’re perhaps retired, or otherwise a home-maker, or even a student, the things you “need to do” on a daily basis are your working life, for these purposes.
In terms of simple, quick-fix, physical tweaks to focus on if you’re already broadly leading a good life, two great ones are:
- Exercise: get moving! Walk to the store even if you buy nothing but a snack or drink to enjoy while walking back. If you drove, make more trips with the shopping bags rather than fewer. If you like to watch TV, consider an exercise bike or treadmill to use while watching. If you have a partner, double-up and make it a thing you do together! Take the stairs instead of the elevator. Take the scenic route when walking someplace. Go to the bathroom that’s further away. Every little helps!
- Breathe: even just a couple of times a day, practice mindful breathing. Start with even just a minute a day, to get the habit going. What breathing exercise you do isn’t so important as that you do it. Notice your breathing; count how long each breath takes. Don’t worry about “doing it right”—you’re doing great, just observe, just notice, just slowly count. We promise that regular practice of this will have you feeling amazing
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Does Eating Shellfish Contribute To Gout?
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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 have a question about seafood as healthy, doesn’t eating shellfish contribute to gout?❞
It can do! Gout (a kind of inflammatory arthritis characterized by the depositing of uric acid crystals in joints) has many risk factors, and diet is one component, albeit certainly the most talked-about one.
First, you may be wondering: isn’t all arthritis inflammatory? Since arthritis is by definition the inflammation of joints, this is a reasonable question, but when it comes to classifying the kinds, “inflammatory” arthritis is caused by inflammation, while “non-inflammatory” arthritis (a slightly confusing name) merely has inflammation as one of its symptoms (and is caused by physical wear-and-tear). For more information, see:
- Tips For Avoiding/Managing Rheumatoid Arthritis ←inflammatory
- Tips For Avoiding/Managing Osteoarthritis ← “non-inflammatory”
As for gout specifically, top risk factors include:
- Increasing age: risk increases with age
- Being male: women do get gout, but much less often
- Hypertension: all-cause hypertension is the biggest reasonably controllable factor
There’s not a lot we can do about age (but of course, looking after our general health will tend to slow biological aging, and after all, diseases only care about the state of our body, not what the date on the calendar is).
As for sex, this risk factor is hormones, and specifically has to do with estrogen and testosterone’s very different effects on the immune system (bearing in mind that chronic inflammation is a disorder of the immune system). However, few if any men would take up feminizing hormone therapy just to lower their gout risk!
That leaves hypertension, which happily is something that we can all (barring extreme personal circumstances) do quite a bit about. Here’s a good starting point:
Hypertension: Factors Far More Relevant Than Salt
…and for further pointers:
How To Lower Your Blood Pressure (Cardiologists Explain)
As for diet specifically (and yes, shellfish):
The largest study into this (and thus, one of the top ones cited in a lot of other literature) looked at 47,150 men with no history of gout at the baseline.
So, with the caveat that their findings could have been different for women, they found:
- Eating meat in general increased gout risk
- Narrowing down specific meats: beef, pork, and lamb were the worst offenders
- Eating seafood in general increased gout risk
- Narrowing down specific seafoods: all seafoods increased gout risk within a similar range
- As a specific quirk of seafoods: the risk was increased if the man had a BMI under 25
- Eating dairy in general was not associated with an increased risk of gout
- Narrowing down specific dairy foods: low-fat dairy products such as yogurt were associated with a decreased risk of gout
- Eating purine-rich vegetables in general was not associated with an increased risk of gout
- Narrowing down to specific purine-rich vegetables: no purine-rich vegetable was associated with an increase in the risk of gout
Dairy products were included in the study, as dairy products in general and non-fermented dairy products in particular are often associated with increased inflammation. However, the association was simply not found to exist when it came to gout risk.
Purine-rich vegetables were included in the study, as animal products highest in purines have typically been found to have the worst effect on gout. However, the association was simply not found to exist when it came to plants with purines.
You can read the full study here:
Purine-Rich Foods, Dairy and Protein Intake, and the Risk of Gout in Men
So, the short answer to your question of “doesn’t eating shellfish contribute to the risk of gout” is:
Yes, it can, but occasional consumption probably won’t result in gout unless you have other risk factors going against you.
If you’re a slim male 80-year-old alcoholic smoker with hypertension, then definitely do consider skipping the lobster, but honestly, there may be bigger issues to tackle there.
And similarly, obviously skip it if you have a shellfish allergy, and if you’re vegan or vegetarian or abstain from shellfish for religious reasons, then you can certainly live very healthily without ever having any.
See also: Do We Need Animal Products, To Be Healthy?
For most people most of the time, a moderate consumption of seafood, including shellfish if you so desire, is considered healthy.
As ever, do speak with your own doctor to know for sure, as your individual case may vary.
For reference, this question was surely prompted by the article:
Lobster vs Crab – Which is Healthier?
Take care!
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5 Ways To Beat Cancer (And Other Diseases)
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A Systematic Approach To Healthy Eating
This is Dr. William Li. He’s a physician, cancer researcher, and educator. He also founded the Angiogenesis Foundation back in 1994.
We recently reviewed one of his books, “Eat To Beat Disease”.
He has another book that we haven’t reviewed at time of writing, “Eat To Beat Your Diet“, which you might like to check out.
What does he want us to know?
He wants us to know how to eat to beat cancer and other diseases, by means of five specific angles:
Angiogenesis
This is about replacing blood vessels, which of course happens all the time, but it becomes a problem when it is feeding a cancer in the process.
Here, based on Dr. Li’s work, is what can be done about it:
A List of Anti-Angiogenic Foods for a Cancer-Fighting Diet
Regeneration
Generally speaking, we want to replace healthy cells early, because if we wait until they get damaged, then that damage will be copied forwards. As well as intermittent fasting, there are other things we can do to promote this—even, Dr. Li’s research shows, for stem cells:
Doctor’s Tip: Regeneration (stem cells)—one of your body’s five defense systems
Microbiome health
Healthy gut, healthy rest of the body. We’ve written about this before:
Making Friends With Your Gut (You Can Thank Us Later)
DNA protection
DNA gets unravelled and damaged with age, the telomere caps get shorter, and mistakes get copied forward. So there more we can protect our DNA, the longer we can live healthily. There are many ways to do this, but Dr. Li was one of the first to bring to light the DNA-protecting benefits of kiwi fruit:
Immunity
Paradoxically, what’s good for your immune system (making it stronger) also helps to protect against autoimmune diseases (for most people, for the most part).
In short: it’s good to have an immune system that’s powerful not just in its counterattacks, but also in its discerning nature. There are dietary and other lifestyle approaches to both, and they’re mostly the same things:
Beyond Supplements: The Real Immune-Boosters!
and thus see also:
Want to know more?
You might enjoy his blog or podcast, and here’s his TED talk:
Want to watch it, but not right now? Bookmark it for later
Enjoy!
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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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Real Self-Care – by Pooja Lakshmin MD
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As the subtitle says, “crystals, cleanses, and bubble baths not included”. So, if it’s not about that sort of self-care, what is it about?
Dr. Lakshmin starts by acknowledging something that many self-help books don’t:
We can do everything correctly and still lose. Not only that, but for many of us, that is the probable outcome. Not because of any fault or weakness of ours, but simply because one way or another the game is rigged against us from the start.
So, should we throw in the towel, throw our hands in the air, and throw the book out of the window?
Nope! Dr. Lakshmin has actually helpful advice, that pertains to:
- creating healthy boundaries and challenging guilt
- treating oneself with compassion
- identifying and aligning oneself with one’s personal values
- asserting one’s personal power to fight for one’s own self-interest
If you’re reading this and thinking “that seems very selfish”, then let’s remember the “challenging guilt” part of that. We’ve all-too-often been conditioned to neglect our own needs and self-sacrifice for others.
And, while selfless service really does have its place, needlessly self-destructive martyrdom does not!
Bottom line: this book delivers a lot of “real talk” on a subject that otherwise often gets removed from reality rather. In short, it’s a great primer for finding the right place to draw the line between being a good-hearted person and being a doormat.
Click here to check out Real Self-Care and “put your own oxygen mask on first”!
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10almonds Subcribers Take The Wheel!
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❓ Q&A With 10almonds Subscribers!
Q: What kind of salt is best for neti pots?
A: Non-iodised salt is usually recommended, but really, any human-safe salt is fine. By this we mean for example:
- Sodium chloride (like most kitchen salts),
- Potassium chloride (as found in “reduced sodium” kitchen salts), or
- Magnesium sulfate (also known as epsom salts).
Q: You talked about spearmint as reducing testosterone levels, what about ginseng for increasing them?
A: Hormones are complicated and often it’s not a simple matter of higher or lower levels! It can also be a matter of…
- how your body converts one thing into another
- how your body responds (or not) to something according to how the relevant hormone’s receptors are doing
- …and whether there’s anything else blocking those receptors.
All this to say: spearmint categorically is an anti-androgen, but the mechanism of action remains uncertain.
Panax ginseng, meanwhile, is one of the most well-established mysteries in herbal medicine.
Paradoxically, it seems to improve both male and female hormonal regulation, despite being more commonly associated with the former.
- It doesn’t necessarily increase or decrease testosterone or estrogen levels (but it can, even if indirectly)
- It does improve sexual function
- …and alleviates symptoms associated with conditions as varied as:
- Late-onset hypogonadism (common for men during the andropause)
- Benign prostate hyperplasia (again common for men during the andropause)
- …and also counteracts unwanted side-effects of finasteride. Finasteride is often taken by men as a hair loss remedy or, less often but critically, in the case of an enlarged prostate.
But it also…
- Alleviates symptoms of PCOS (polycystic ovary syndrome, which effects around 20% of women)
- May even be an effective treatment for PCOS (rat model only so far)
- It also may improve female reproductive fertility more generally (the studies are down to fruit flies now though)
Bottom line: Panax ginseng is popularly taken to improve natural hormone function, a task at which it appears to excel.
Scientists are still working out exactly how it does the many things it appears to do.
Progress has been made, and it clearly is science rather than witchcraft, but there are still far more unanswered questions than resolved ones!
Q: I like that the quizzes (I’ve done two so far) give immediate results , with no “give us your email to get your results”. Thanks!
A: You’re welcome! That’s one of the factors that influences what things we include here! Our mission statement is “to make health and productivity crazy simple”, and the unwritten part of that is making sure to save your time and energy wherever we reasonably can!
Q: Do you know if adrafanil is as good as modafinil? It seems to be a lot cheaper for the same result?
A: Adrafinil is the pro-drug of modafinil. What this means is that if you take it, your own liver will use it to make modafinil inside you. So the end result is chemically the same drug.
As to whether it’s as good, it depends what you need. It’s worth noting that anything that taxes liver function can be harmful if you take too much, and/or your liver is already strained for some reason.
If in doubt, consult a doctor! And if it’s something that’s accessible to you, a recent lipids test (a kind of blood test that checks your liver health) is always a good thing to have.
Q: Would love to see your take on polyphasic sleep!
A: Watch this space
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Breathe; Don’t Vent (At Least In The Moment)
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Zen And The Art Of Breaking Things
We’ve talked before about identifying emotions and the importance of being able to express them:
Answering The Most Difficult Question: How Are You?
However, there can be a difference between “expressing how we feel” and “being possessed by how we feel and bulldozing everything in our path”
…which is, of course, primarily a problem in the case of anger—and by extension, emotions that are often contemporaneous with anger, such as jealousy, shame, fear, etc.
How much feeling is too much?
While this is in large part a subjective matter, clinically speaking the key question is generally: is it adversely affecting daily life to the point of being a problem?
For example, if you have to spend half an hour every day actively managing a certain emotion, that’s probably indicative of something unusual, but “unusual” is not inherently bad. If you’re managing it safely and in a way that doesn’t negatively affect the rest of your life, then that is generally considered fine, unless you feel otherwise about it.
A good example of this is complicated grief and/or prolonged grief.
But what about when it comes to anger? How much is ok?
When it comes to those around you, any amount of anger can seem like too much. Anger often makes us short-tempered even with people who are not the object of our anger, and it rarely brings out the best in us.
We can express our feelings in non-aggressive ways, for example:
and
Seriously Useful Communication Skills!
Sometimes, there’s another way though…
Breathe; don’t vent
That’s a great headline, but we can’t take the credit for it, because it came from:
Breathe, don’t vent: turning down the heat is key to managing anger
…in which it was found that, by all available metrics, the popular wisdom of “getting it off your chest” doesn’t necessarily stand up to scrutiny, at least in the short term:
❝The work was inspired in part by the rising popularity of rage rooms that promote smashing things (such as glass, plates and electronics) to work through angry feelings.
I wanted to debunk the whole theory of expressing anger as a way of coping with it,” she said. “We wanted to show that reducing arousal, and actually the physiological aspect of it, is really important.❞
And indeed, he and his team did find that various arousal-increasing activities (such as hitting a punchbag, breaking things, doing vigorous exercise) did not help as much as arousal-decreasing activities, such as mindfulness-based relaxation techniques.
If you’d like to read the full paper, then so would we, but we couldn’t get full access to this one yet. However, the abstract includes representative statistics, so that’s worth a once-over:
Caveat!
Did you notice the small gap between their results and their conclusion?
In a lab or similar short-term observational setting, their recommendation is clearly correct.
However, if the source of your anger is something chronic and persistent, it could well be that calming down without addressing the actual cause is just “kicking the can down the road”, and will still have to actually be dealt with eventually.
So, while “here be science”, it’s not a mandate for necessarily suffering in silence. It’s more about being mindful about how we go about tackling our anger.
As for a primer on mindfulness, feel free to check out:
No-Frills, Evidence-Based Mindfulness
Take care!
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