HIIT, But Make It HIRT
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This May HIRT A Bit
This is Ingrid Clay. She’s a professional athlete, personal trainer, chef*, and science writer.
*A vegan bodybuilding chef, no less:
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For those who prefer reading…
This writer does too
We’ve previously reviewed her book, “Science of HIIT”, and we’re going to be talking a bit about High Intensity Interval Training today.
If you’d like to know a little more about the woman herself first, then…
Centr | Meet Ingrid: Your HIIT HIRT trainer
Yes, that is Centr, as in Chris Hemsworth’s personal training app, where Clay is the resident HIIT & HIRT expert & trainer.
What’s this HIIT & HIRT?
“HIIT” is High Intensity Interval Training, which we’ve written about before:
How To Do HIIT (Without Wrecking Your Body)
Basically, it’s a super-efficient way of working out, that gets better results than working out for longer with other methods, especially because of how it raises the metabolism for a couple of hours after training (this effect is called EPOC, by the way—Excessive Post-exercise Oxygen Consumption), and is a good thing.
You can read more about the science of it, in the above-linked main feature.
And HIRT?
“HIRT” is High Intensity Resistance Training, and is resistance training performed with HIIT principles.
See also: Chris Hemsworth’s Trainer Ingrid Clay Explains HIRT
An example is doing 10 reps of a resistance exercise (e.g., a dumbbell press) every minute on odd-numbered minutes, and 10 reps of a different resistance exercise (e.g. dumbbell squats) on even-numbered minutes.
If dumbbells aren’t your thing, it could be resistance bands, or even the floor (press-ups are a resistance exercise!)
For HIRT that’s not also a cardio exercise, gaps between different exercises can be quite minimal, as we only need to confuse the muscles, not the heart. So, effectively, it becomes a specially focused kind of circuit training!
If doing planks though, you might want to check out Clay’s troubleshooting guide:
Want more from Clay?
Here she gives a full 20-minute full-body HIIT HIRT workout:
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Enjoy!
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No-Exercise Exercise!
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Do you love to go to the gym?
If so, today’s article might not be for you so much. Or maybe it will, because let’s face it, exercise is fun!
At least… It can be, and should be 😎
So without further ado, here’s a slew of no-exercise exercise ideas; we’re willing to bet that somewhere in the list there’s at least some you haven’t tried before, and probably some you haven’t done in a while but might enjoy making a reprise!
Walking
No surprises here: walking is great. Hopefully you have some green spaces near you, but if you don’t, [almost] any walking is better than no walking. So unless there’s some sort of environmental disaster going on outside, lace up and get stepping.
If you struggle to “walk for walking’s sake” give yourself a little mission. Walk to the shop to buy one item. Walk to the park and find a flower to photograph. Walk to the library and take out a book. Whatever works for you!
See also: The Doctor Who Wants Us To Exercise Less, And Move More
Take the stairs
This one doesn’t need many words, just: make it a habit.
Treat the elevators as though they aren’t there!
See also: How To Really Pick Up (And Keep!) Those Habits
Dance
Dance is amazing! Any kind of dance, whatever suits your tastes. This writer loves salsa and tango, but no matter whether for you it’s zouk or zumba, breakdancing or line dancing, whatever gets you moving is going to be great for you.
If you don’t know how, online tutorials abound, and best of all is to attend local classes if you can, because they’re always a fun social experience too.
Make music
Not something often thought of as an exercise, but it is! Most instruments require that we be standing or siting with good posture, focusing intently on our movements, and often as not, breathing very mindfully too. And yes, it’s great for the brain as well!
Check out: This Is Your Brain on Music: The Science of a Human Obsession – by Dr. Daniel Levitin
Take a stand
If you spend a lot of time at a desk, please consider investing in a standing desk; they can be truly life-changing. Not only is it so much better for your back, hips, neck, and internal organs, but also it burns hundreds more calories than sitting, due to the no-exercise exercise that is keeping your body constantly stabilized while on your feet.
(or, if you’re like this writer: on your foot. I do have two feet, I just spend an inordinate amount of time at my desk standing on one leg at a time; I’m a bit of a flamingo like that)
See also: Deskbound: Standing Up to a Sitting World – by Kelly Starrett and Glen Cordoza
Sit, but…
Sit in a sitting squat! Sometimes called a Slav squat, or an Asian squat, or a resting squat, or various other names:
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Alternatively, sitting in seiza (the traditional Japanese sitting position) is also excellent, but watch out! While it’s great once your body is accustomed to it, if you haven’t previously sat this way much, you may cut off your own circulation, hurt your knees, and (temporarily) lose feeling in your feet. So if you don’t already sit in seiza often, gradually work up the time period you spend sitting in seiza, so that your vasculature can adapt and improve, which honestly, is a very good thing for your legs and feet to have.
Breathe
Perhaps the absolute most “no-exercise exercise” there is. And yes, of course you are (hopefully) breathing all the time, but how you are breathing matters a lot:
The Inside Job Of Fixing Our Breathing: Exercises That Can Fix Sinus Problems (And More)
Clean
This doesn’t have to mean scrubbing floors like a sailor—even merely giving your house the Marie Kondo treatment counts, because while you’re distracted with all the objects, you’re going to be going back and forth, getting up and down, etc, clocking up lots of exercise that you barely even notice!
PS, check out: The Life-Changing Manga Of Tidying Up – by Marie Kondo
Garden
As with the above, it’s lots of activity that doesn’t necessarily feel like it (assuming you’re doing more pruning and weeding etc, and less digging ditches etc), and as a bonus, there are a stack of mental health benefits to being in a green natural environment and interacting with soil:
Read more: The Antidepressant In Your Garden
Climb
Depending on where you live, this might mean an indoor climbing wall, but give it a go! They have color-coded climbs from beginner to advanced, so don’t worry about being out of your depth.
And the best thing is, the beginner climbs will be as much a workout to a beginner as the advanced climbs will be to an advanced climber, because at the end of the day, you’re still clinging on for dear life, no matter whether it’s a sizeable handhold not far from the ground, or the impression of a fingernail crack in an overhang 100ft in the air.
Video games (but…)
Less in the category of Stardew Valley, and more in the category of Wii Fit.
So, dust off that old controller (or treat yourself to one if you didn’t have one already), and get doing a hundred sports and other physical activities in the comfort of your living room, with a surprisingly addictive gaming system!
Sex!
You probably don’t need instructions here, and if you do, well honestly, we’re running out of space today. But the answer to “does xyz count?” is “did it get your heart racing?” because if so, it counts
Take care!
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Five Flavors & Five Benefits
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Five Flavors Of Good Health
Schisandra chinensis, henceforth Schisandra, is also called the “five flavor fruit”, for covering the culinary bases of sweet, salt, bitter, sour, and pungent.
It can be eaten as a fruit (small red berries), juiced from the fruit, or otherwise extracted into supplements (dried powder of the fruit being a common one).
It has long enjoyed usage in various traditional medicines, especially in China and Siberia.
So, what are its health claims, and how does the science stack up?
Menopause
Most of the studies are mouse studies, and we prefer studies on humans, so here’s a small (n=36) randomized clinical trial that concluded…
❝Schisandra chinensis can be a safe and effective complementary medicine for menopausal symptoms, especially for hot flushes, sweating, and heart palpitations❞
~ Dr. Joon Young Park & Dr. Kye Hyun Kim
Read more: A randomized, double-blind, placebo-controlled trial of Schisandra chinensis for menopausal symptoms
Antioxidant (and perhaps more)
Like many berries, it’s a good source of lignans offering antioxidant effects:
Antioxidant Effects of Schisandra chinensis Fruits and Their Active Constituents
Lignans usually have anticancer effects too (which is reasonably, given what is antioxidant is usually anticancer and anti-inflammatory as well, by the same mechanism) but those have not yet been studied in schisandra specifically.
Antihepatotoxicity
In other words, it’s good for your liver. At least, so animal studies tell us, because human studies haven’t been done yet for this one. The effect is largely due to its antioxidant properties, but it seems especially effective for the liver—which is not surprising, giving the liver’s regeneration mechanism.
Anyway, here’s a fascinating study that didn’t even need to use the fruit itself, just the pollen from the plant, it was that potent:
Athletics enhancer
While it’s not yet filling the shelves of sports nutrition stores, we found a small (n=45) study with healthy post-menopausal women who took either 1g of schisandra (experimental group) or 1g of starch (placebo group), measured quadriceps muscle strength and resting lactate levels over the course of a 12 week intervention period, and found:
❝Supplementation of Schisandra chinensis extract can help to improve quadriceps muscle strength as well as decrease lactate level at rest in adult women ❞
Anti-Alzheimers & Anti-Parkinsons
The studies for this are all in vitro, but that’s because it’s hard to find volunteers willing to have their brains sliced and looked at under a microscope while they’re still alive.
Nevertheless, the results are compelling, and it seems uncontroversial to say that schisandra, or specifically Schisandrin B, a compound it contains, has not only anti-inflammatory properties, but also neuroprotective properties, and specifically blocks the formation of excess amyloid-β peptides in the brain (which are critical for the formation of amyloid plaque, as found in the brains of Alzheimer’s patients):
Is it safe?
For most people, yes! Some caveats:
- As it can stimulate the uterus, it’s not recommended if you’re pregant.
- Taking more than the recommended amount can worsen symptoms of heartburn, GERD, ulcers, or other illnesses like that.
And as ever, do speak with our own doctor/pharmacist if unsure, as your circumstances may vary and we cannot cover all possibilities here.
Where can I get some?
We don’t sell it, but here for your convenience is an example product on Amazon
Enjoy!
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Saffron For The Brain (& More)
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Saffron For The Brain (& More)
In yesterday’s edition of 10almonds, one of the items in the “health news from around the world” section was:
Clinical trial finds herbal medicine Sailuotong effective for brain health in older people
But, what is it?
❝SaiLuoTong (SLT) is a modern compound Chinese herbal medicine preparation in capsule form containing standardized extracts of Panax ginseng, Ginkgo biloba, and Crocus sativus L❞
We’ve written previously about ginseng and ginkgo biloba:
So, what’s this about Crocus sativus L.?
That is the plant better known as saffron. And, for all its wide availability (your local supermarket probably has at least a tiny amount in the spice section), there’s a reason we don’t see much of it:
❝Saffron blooms only once a year and should be collected within a very short duration. It is picked during 3–4 weeks in October-November. The method for the cultivation of saffron contributes greatly to its high price. According to some reports, this species is a sterile triploid and so does not produce fertile seeds. Germination can take 1–6 months at 18°C. It takes 3 years for plants to flower from seed.❞
Source: Crocus sativus L.: A comprehensive review
That’s fascinating, but what does it do for us?
Well, in the words of El Midaoui et al. (2022):
❝In the frame of a double-blind-placebo-controlled study, 30 mg per day supplementation with saffron for 16 weeks resulted in improved cognitive function in patients suffering from mild to moderate Alzheimer’s disease.
Moreover, the follow-up of this study in which the authors evaluated the effects of saffron (30 mg/day) for 22 weeks showed that saffron was as effective as donepezil in the treatment of mild-to-moderate Alzheimer’s disease❞
Read the full review: Saffron (Crocus sativus L.): A Source of Nutrients for Health and for the Treatment of Neuropsychiatric and Age-Related Diseases
Not just that, but it also has powerful antioxidant and anti-inflammatory properties beyond the brain (though the brain is where research has been most focused, due to its neuroprotective effects).
(this, too, is a full research review in its own right; we’re getting a lot of “bang for buck” on papers today)
And more?
Yes, and more. Lots more. To bullet-pointify even just the abstract from another research review:
- Saffron has been suggested to be effective in the treatment of a wide range of disorders including coronary artery diseases, hypertension, stomach disorders, dysmenorrhea and learning and memory impairments.
- In addition, different studies have indicated that saffron has anti-inflammatory, anti-atherosclerotic, antigenotoxic and cytotoxic activities. (This is all good; the cytotoxic activities are about killing cancer cells)
- Antitussive effects of stigmas and petals of C. sativus and its components, safranal and crocin have also been demonstrated.
- The anticonvulsant and anti-Alzheimer properties of saffron extract were shown in human and animal studies.
- The efficacy of C. sativus in the treatment of mild to moderate depression was also reported in clinical trial.
- Administration of C. sativus and its constituents increased glutamate and dopamine levels in the brain in a dose-dependent manner.
- It also interacts with the opioid system to reduce withdrawal syndrome.
- C. sativus and its components can be considered as promising agents in the treatment of nervous system disorders.
For more details on any of those items, see:
The effects of Crocus sativus (saffron) and its constituents on nervous system: a review
Is it safe?
The effective dose is 30mg/kg and the LD50 is more than 20g/kg, so yes, it’s very safe. Given the price of it, this also means that if you’re the size of this writer (a little over 70kg, or a little over 150lbs) to poison yourself effectively you’d need to consume about 1.4kg of saffron at a time, which would cost well over $6,000.
Where can I get it?
Your local supermarket probably has a tiny amount in the spice section, or you can get better prices buying it in “bulk” online. Here’s an example product on Amazon, for your convenience
Enjoy!
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Treat Your Own Back – by Robin McKenzie
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A quick note about the author first: he’s a physiotherapist and not a doctor, but with over 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. And certainly, if you visit any physiotherapist, they will probably have some of his books on their own shelves.
This book is intended for the layperson, and as such, explains everything that you need to know, in order to diagnose and treat your back. To this end, he includes assorted tests to perform, a lot of details about various possible back conditions, and then exercises to fix it, i.e. fix whatever you have now learned that the problem is, in your case (if indeed you didn’t know for sure already).
Of course, not everything can be treated by exercises, and he does point to what other things may be necessary in those cases, but for the majority, a significant improvement (if not outright symptom-free status) can be enjoyed by applying the techniques described in this book.
Bottom line: for most people, this book gives you the tools required to do exactly what the title says.
Click here to check out Treat Your Own Back, and treat your own back!
PS: if your issue is not with your back, we recommend you check out his other books in the series (neck, shoulder, hip, knee, ankle) 😎
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Cupping: How It Works (And How It Doesn’t)
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Good Health By The Cup?
In Tuesday’s newsletter, we asked you for your opinion of cupping (the medical practice), and got the above-depicted, below-described, set of responses:
- About 40% said “It may help by improving circulation and stimulating the immune system”
- About 26% said “I have never heard of the medical practice of cupping before this”
- About 19% said “It is pseudoscience and/or placebo at best, but probably not harmful
- About 9% said “It is a good, evidence-based practice that removes toxins and stimulates health”
- About 6% said “It is a dangerous practice that often causes harm to people who need medical help”
So what does the science say?
First, a quick note for those unfamiliar with cupping: it is the practice of placing a warmed cup on the skin (open side of the cup against the skin). As the warm air inside cools, it reduces the interior air pressure, which means the cup is now (quite literally) a suction cup. This pulls the skin up into the cup a little. The end result is visually, and physiologically, the same process as what happens if someone places the nozzle of a vacuum cleaner against their skin. For that matter, there are alternative versions that simply use a pump-based suction system, instead of heated cups—but the heated cups are most traditional and seem to be most popular. See also:
National Center for Complementary and Integrative Health | Cupping
It is a dangerous practice that often causes harm to people who need medical help: True or False?
False, for any practical purposes.
- Directly, it can (and usually does) cause minor superficial harm, much like many medical treatments, wherein the benefits are considered to outweigh the harm, justifying the treatment. In the case of cupping, the minor harm is usually a little bruising, but there are other risks; see the link we gave just above.
- Indirectly, it could cause harm by emboldening a person to neglect a more impactful treatment for their ailment.
But, there’s nothing for cupping akin to the “the most common cause of death is when someone gets a vertebral artery fatally severed” of chiropractic, for example.
It is a good, evidence-based practice that removes toxins and stimulates health: True or False?
True and False in different parts. This one’s on us; we included four claims in one short line. But let’s look at them individually:
- Is it good? Well, those who like it, like it. It legitimately has some mild health benefits, and its potential for harm is quite small. We’d call this a modest good, but good nonetheless.
- Is it evidence-based? Somewhat, albeit weakly; there are some papers supporting its modest health claims, although the research is mostly only published in journals of alternative medicine, and any we found were in journals that have been described by scientists as pseudoscientific.
- Does it remove toxins? Not directly, at least. There is also a version that involves making a small hole in the skin before applying the cup, the better to draw out the toxins (called “wet cupping”). This might seem a little medieval, but this is because it is from early medieval times (wet cupping’s first recorded use being in the early 7th century). However, the body’s response to being poked, pierced, sucked, etc is to produce antibodies, and they will do their best to remove toxins. So, indirectly, there’s an argument.
- Does it stimulate health? Yes! We’ll come to that shortly. But first…
It is pseudoscience and/or placebo at best, but probably not harmful: True or False?
True in that its traditionally-proposed mechanism of action is a pseudoscience and placebo almost certainly plays a strong part, and also in that it’s generally not harmful.
On it being a pseudoscience: we’ve talked about this before, but it bears repeating; just because something’s proposed mechanism of action is pseudoscience, doesn’t necessarily mean it doesn’t work by some other mechanism of action. If you tell a small child that “eating the rainbow” will improve their health, and they believe this is some sort of magical rainbow power imbuing them with health, then the mechanism of action that they believe in is a pseudoscience, but eating a variety of colorful fruit and vegetables will still be healthy.
In the case of cupping, its proposed mechanism of action has to do withbalancing qi, yin and yang, etc (for which scientific evidence does not exist), in combination with acupuncture lore (for which some limited weak scientific evidence exists). On balancing qi, yin and yang etc, this is a lot like Europe’s historically popular humorism, which was based on the idea of balancing the four humors (blood, yellow bile, black bile, phlegm). Needless to say, humorism was not only a pseudoscience, but also eventually actively disproved with the advent of germ theory and modern medicine. Cupping therapy is not more scientifically based than humorism.
On the placebo side of things, there probably is a little more to it than that; much like with acupuncture, a lot of it may be a combination of placebo and using counter-irritation, a nerve-tricking method to use pain to reduce pain (much like pressing with one’s nail next to an insect bite).
Here’s one of the few studies we found that’s in what looks, at a glance, to be a reputable journal:
Cupping therapy and chronic back pain: systematic review and meta-analysis
It may help by improving circulation and stimulating the immune system: True or False?
True! It will improve local circulation by forcing blood into the area, and stimulate the immune system by giving it a perceived threat to fight.
Again, this can be achieved by many other means; acupuncture (or just “dry needling”, which is similar but without the traditional lore), a cold shower, and/or exercise (and for that matter, sex—which combines exercise, physiological arousal, and usually also foreign bodies to respond to) are all options that can improve circulation and stimulate the immune system.
You can read more about using some of these sorts of tricks for improving health in very well-evidenced, robustly scientific ways here:
The Stress Prescription (Against Aging!)
Take care!
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Calm For Surgery – by Dr Chris Bonney
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As a general rule of thumb, nobody likes having surgery. We may like the results of the surgery, we may like having the surgery done and behind us, but surgery itself is not most people’s idea of fun, and honestly, the recovery period afterwards can be a pain in every sense of the word.
Dr. Chris Bonney, an anesthesiologist, gives us the industry-secrets low-down, and is the voice of experience when it comes to the things to know about and/or prepare in advance—the little things that make a world of difference to your in-hospital experience and afterwards.
Think of it like “frequent flyer traveller tips” but for surgeries, whereupon knowing a given tip can mean the difference between deeply traumatic suffering and merely not being at your usual best. We think that’s worth it.
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