How To Do HIIT (Without Wrecking Your Body)
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How To Do HIIT (Without Wrecking Your Body)
High-Intensity Interval Training, henceforth “HIIT”, is a well-researched and well-evidenced approach to exercise that gives powerful health benefits.
Specifically, health benefits that we don’t get from moderate exercise (as important as that is too) or endurance training.
Super-quick overview of the benefits first:
- Burns more calories than other forms of exercise
- Boosts your metabolic rate for hours afterwards
- …which means it actually works* for fat loss
- Reduces blood pressure (unless already healthy)
- Can promote muscle growth (depends on other factors)
*remember that most forms of exercise aren’t very good for fat loss, because our metabolism will slow afterwards to compensate. So HIIT flipping this one is quite a big deal.
What actually is it?
HIIT means exercise sessions in which one alternates between high intensity “maximum effort” bursts, and short recovery periods during which more moderate exercise is performed.
An example for runners could be switching between sprinting or jogging, changing mode each time one passes a street light.
❝A total of only two minutes of sprint interval exercise was sufficient to elicit similar responses as 30 minutes of continuous moderate intensity aerobic exercise❞
What did you mean about not wrecking your body? Is that… Likely?
Hopefully not, but it’s a barrier to some! We are not all twenty-something college athletes, after all, and our bodies aren’t always as durable as they used to be.
HIIT relies on intense exercise and short recovery periods, but what if our bodies are not accustomed to intense exercise, and need longer recovery periods? Can we still get the same benefits?
The trick is not to change the intensity or the recovery periods, but the exercise itself.
For HIIT to work the “intense” part has to be best-effort or approaching such. That part’s not negotiable. The recovery periods can be stretched a bit if you need to, but with the right tweaks, you ideally won’t have to do that.
Great! How?
First, note that you can do resistance interval training without impact. For example, if you crank up the resistance on an exercise bike or similar machine, you will be doing resistance training along with your cardio, and you’ll be doing it without the impact on your joints that you would if out pounding the pavement on foot.
(Running is fine if your body is used to it, but please don’t make HIIT your first running exercise in a decade)
Second, consider your environment. That exercise bike? You can get off it any time and you’re already at home (or perhaps your gym, with your car outside). Not so if you took up mountain biking or road racing.
Third, go for what is gentle in motion, even if it’s not resistance work per se. Swimming is a fabulous option for most people, and can absolutely be done with HIIT principles. Since vision is often obscured while swimming, counting strokes can be a good way to do HIIT. For example, ten strokes max effort, ten strokes normal, repeat. Do make sure you are aware of where the end of the pool is, though!
Fourth, make it fun! Ok, this one’s not about the safety quite so much, but it is about sustainability, and that’s critical for practical purposes too. You will only continue an exercise routine that you enjoy, after all.
- Could you curate a musical playlist that shifts tempo to cue your exercise mode intervals?
- Could you train with an exercise partner? Extra fun if this has a “relay race” feel to it, i.e. when one person completes a high intensity interval, the other person must now begin theirs.
Need some pointers getting started?
There are a lot of HIIT apps out there, so you can just search for that on your device of choice.
But!
We at 10almonds have recommended 7-Minute Workout before, which is available for iOS and for Android, and we stand by that as a great starting choice.
Enjoy!
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Younger For Life – by Dr. Anthony Youn
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.
We’ve reviewed anti-aging books before, so what makes this one different? Mostly, it’s the very practical focus.
Which is not to say there’s not also good science in here; there is. But the focus is on what everything means for the reader, not what happened with a certain cohort of lab mice. Instead, he looks at the causes of aging, the process of aging, and what interventions to implement to address those, and reverse many of them.
Some parts are more general lifestyle interventions that 10almonds readers will know well already, but other parts are very specific advices, protocols, and regimes; in particular his skincare section is well worth reading. As for nutrition, there’s even a respectable recipes section, so this book does have it all!
The final section of the book is dedicated to plastic surgeries (the author is a plastic surgeon who believes that most people should not need those, and would do well to stick to the advices in the rest of the book). We suspect this last part of the book will be of least interest to 10almonds readers.
Bottom line: if you’re of the view that getting older should come with as little as possible physical deterioration along the way, then this book can help a lot with that.
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Rethinking Diabetes – by Gary Taubes
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We’ve previously reviewed this author’s “The Case Against Sugar” and “Why We Get Fat And What To Do About It“. There’s an obvious theme, and this book caps it off nicely:
By looking at the history of diabetes treatment (types 1 and 2) in the past hundred years, and analysing the patterns over time, we can see how:
- diabetics have been misled a lot over time by healthcare providers
- we can learn from those mistakes going forwards
Happily, he does this without crystal-balling the future or expecting diet to fix, for example, a pancreas that can’t produce insulin. But what he does do is focus on the “can” items rather than the “can’t” items.
In the category of criticism, one of the strategies he argues for is basically the keto diet, which is indeed just fine for diabetes but often not great for the heart in the long-term (it depends on various factors, including genes). However, even if you choose not to implement that, there is plenty more to try out in this book.
Bottom line: whether you have diabetes, love someone who does, or just plain like to be on top of your glycemic health, this book is full of important insights and opportunities to improve things progressively along the way.
Click here to check out Rethinking Diabetes, and rethink diabetes!
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5 dental TikTok trends you probably shouldn’t try at home
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TikTok is full of videos that demonstrate DIY hacks, from up-cycling tricks to cooking tips. Meanwhile, a growing number of TikTok videos offer tips to help you save money and time at the dentist. But do they deliver?
Here are five popular dental TikTok trends and why you might treat them with caution.
1. Home-made whitening solutions
Many TikTok videos provide tips to whiten teeth. These include tutorials on making your own whitening toothpaste using ingredients such as hydrogen peroxide, a common household bleaching agent, and baking soda (sodium bicarbonate).
In this video, the influencer says:
And then you’re going to pour in your hydrogen peroxide. There’s really no measurement to this.
But hydrogen peroxide in high doses is poisonous if swallowed, and can burn your gums, mouth and throat, and corrode your teeth.
High doses of hydrogen peroxide may infiltrate holes or microscopic cracks in your teeth to inflame or damage the nerves and blood vessels in the teeth, which can cause pain and even nerve death. This is why dental practitioners are bound by rules when we offer whitening treatments.
Sodium bicarbonate and hydrogen peroxide are among the components in commercially available whitening toothpastes. While these commercial products may be effective at removing surface stains, their compositions are carefully curated to keep your smile safe.
2. Oil pulling
Oil pulling involves swishing one tablespoon of sesame or coconut oil in your mouth for up to 20 minutes at a time. It has roots in Ayurvedic medicine, a traditional medicine practice that originates from the Indian subcontinent.
While oil pulling should be followed by brushing and flossing, I’ve had patients who believe oil pulling is a replacement for these practices.
There has been some research on the potential of oil pulling to treat gum disease or other diseases in the mouth. But overall, evidence that supports the effectiveness of oil pulling is of low certainty.
For example, studies that test the effectiveness of oil pulling have been conducted on school-aged children and people with no dental problems, and often measure dental plaque growth over a few days to a couple of weeks.
Chlorhexidine is an ingredient found in some commercially available mouthwashes.
In one study, people who rinsed with chlorhexidine mouthwash (30 seconds twice daily) developed less plaque on their teeth compared to those who undertook oil pulling for eight to 10 minutes.Ultimately, it’s unlikely you will experience measurable gain to your oral health by adding oil pulling to your daily routine. If you’re time-poor, you’re better off focusing on brushing your teeth and gums well alongside flossing.
3. Using rubber bands to fix gaps
This TikTok influencer shows his followers he closed the gaps between his front teeth in a week using cheap clear rubber bands.
But this person may be one of the lucky few to successfully use bands to close a gap in his teeth without any mishaps. Front teeth are slippery and taper near the gums into cone-shaped roots. This can cause bands to slide and disappear into the gums to surround the tooth roots, which can cause infections and pain.
If this happens, you may require surgery that involves cutting your gums to remove the bands. If the bands have caused an infection, you may lose the affected teeth. So it’s best to leave this sort of work to a dental professional trained in orthodontics.
4. Filing or cutting teeth to shape them
My teeth hurt just watching this video.
Cutting or filing teeth unnecessarily can expose the second, more sensitive tooth layer, called dentine, or potentially, the nerve and blood vessels inside the tooth. People undergoing this sort of procedure could experience anything from sensitive teeth through to a severe toothache that requires root canal treatment or tooth removal.
You may notice dentist drills spray water when cutting to protect your teeth from extreme heat damage. The drill in this video is dry with no water used to cool the heat produced during cutting.
It may also not be sterile. We like to have everything clean and sterile to prevent contaminated instruments used on one patient from potentially spreading an infection to another person.
Importantly, once you cut or file your teeth away, it’s gone forever. Unlike bone, hair or nails, our teeth don’t have the capacity to regrow.
5. DIY fillings
Many people on TikTok demonstrate filling cavities (holes) or replacing gaps between teeth with a material made from heated moulded plastic beads. DIY fillings can cause a lot of issues – I’ve seen this in my clinic first hand.
While we may make it look simple in dental surgeries, the science behind filling materials and how we make them stick to teeth to fill cavities is sophisticated.
Filling a cavity with the kind of material made from these beads will be as effective as using sticky tape on sand. Not to mention the cavity will continue to grow bigger underneath the untreated “filled” teeth.
I know it’s easy to say “see a dentist about that cavity” or “go to an orthodontist to fix that gap in your teeth you don’t like”, but it can be expensive to actually do these things. However if you end up requiring treatment to fix the issues caused at home, it may end up costing you much more.
So what’s the take-home message? Stick with the funny cat and dog videos on TikTok – they’re safer for your smile.
Arosha Weerakoon, Senior Lecturer and General Dentist, School of Dentistry, The University of Queensland
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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Heart-Healthy Gochujang Noodles
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Soba noodles are a good source of rutin, which is great for the heart and blood. Additionally, buckwheat (as soba noodles are made from) is healthier in various ways than rice, and certainly a lot healthier than wheat (remember that despite the name, buckwheat is about as related to wheat as a lionfish is to a lion). This dish is filled with more than just fiber though; there are a lot of powerful phytochemicals at play here, in the various kinds of cabbage, plus of course things like gingerol, capsaicin, allicin, and piperine.
You will need
- 14 oz “straight to wok” style soba noodles
- 3 bok choi (about 7 oz)
- 3½ oz red cabbage, thinly sliced
- 10 oz raw and peeled large shrimp (if you are vegan, vegetarian, allergic to shellfish/crustaceans, or observant of a religion that does not eat such, substitute with small cubes of firm tofu)
- 1 can (8 oz) sliced water chestnuts, drained (drained weight about 5 oz)
- 2 tbsp gochujang paste
- 2 tbsp low-sodium soy sauce
- 1 tbsp sesame oil
- 2 tsp garlic paste
- 2 tsp ginger paste
- 1 tbsp chia seeds
- Avocado oil for frying (or another oil suitable for high temperatures—so, not olive oil)
Note: ideally you will have a good quality gochujang paste always in your cupboard, as it’s a great and versatile condiment. However, you can make your own approximation, by blending 5 pitted Medjool dates, 1 tbsp rice wine vinegar, 2 tbsp tomato purée, 2 tsp red chili flakes, 1 tsp garlic granules, and ¼ tsp MSG or ½ tsp low-sodium salt. This is not exactly gochujang, but unless you want to go shopping for ingredients more obscure in Western stores than gochujang, it’s close enough.
Method
(we suggest you read everything at least once before doing anything)
1) Mix together the gochujang paste with the sesame oil, soy sauce, garlic paste, and ginger paste, in a small bowl. Whisk in ¼ cup hot water, or a little more if it seems necessary, but go easy with it. This will be your stir-fry sauce.
2) Slice the base of the bok choi into thin disks; keep the leaves aside.
3) Heat the wok to the highest temperature you can safely muster, and add a little avocado oil followed by the shrimp. When they turn from gray to pink (this will take seconds, so be ready) add the sliced base of the bok choi, and also the sliced cabbage and water chestnuts, stirring frequently. Cook for about 2 minutes; do not reduce the heat.
4) Add the sauce you made, followed 1 minute later by the noodles, stirring them in, and finally the leafy tops of the bok choi.
5) Garnish with the chia seeds (or sesame seeds, but chia pack more of a nutritional punch), and serve:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- What Matters Most For Your Heart?
- Red Cabbage vs White Cabbage – Which is Healthier?
- Ginger Does A Lot More Than You Think
- The Many Health Benefits Of Garlic
- Capsaicin For Weight Loss And Against Inflammation
- Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
- If You’re Not Taking Chia, You’re Missing Out
Take care!
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Overdone It? How To Speed Up Recovery After Exercise
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How To Speed Up Recovery After A Workout (According To Actual Science)
Has your enthusiasm ever been greater than your ability, when it comes to exercise?
Perhaps you leapt excitedly into a new kind of exercise, or maybe you made a reprise of something you used to do, and found out the hard way you’re not in the same condition you used to be?
If you’ve ever done an exercise session and then spent the next three days recovering, this one’s for you. And if you’ve never done that? Well, prevention is better than cure!
Post-exercise stretching probably won’t do much to help
If you like to stretch after a workout, great, don’t let us stop you. Stretching is, generally speaking, good.
But: don’t rely on it to hasten recovery. Here’s what scientists Afonso et al. had to say recently, after doing a big review of a lot of available data:
❝There wasn’t sufficient statistical evidence to reject the null hypothesis that stretching and passive recovery have equivalent influence on recovery.
Data is scarce, heterogeneous, and confidence in cumulative evidence is very low. Future research should address the limitations highlighted in our review, to allow for more informed recommendations.
For now, evidence-based recommendations on whether post-exercise stretching should be applied for the purposes of recovery should be avoided, as the (insufficient) data that is available does not support related claims.❞
…and breath! What a title.
Hot and Cold
Contrast bath therapy (alternating hot and cold, which notwithstanding the name, can also be done in a shower) can help reduce muscle soreness after workout, because of how the change in temperature stimulates vasodilation and vasoconstriction, reducing inflammation while speeding up healing:
Contrast Water Therapy and Exercise Induced Muscle Damage: A Systematic Review and Meta-Analysis
If doing this in the shower isn’t practical for you, and you (like most people) have only one bathtub, then cold is the way to go for the most evidence-based benefits:
Whole-Body Cryotherapy in Athletes: From Therapy to Stimulation. An Updated Review of the Literature
Eat protein whenever, carbs after
Eating protein before a workout can boost muscle protein synthesis. Be aware that even if you’re not bodybuilding, your body will still need to do cell replacement and repair, including in any muscle tissue that got damaged* during the workout
If you don’t like eating before a workout, eating protein after is fine too:
Pre- versus post-exercise protein intake has similar effects on muscular adaptations
*Note: muscle tissue is supposed to get damaged (slightly!) during many kinds of workout.
From lactic acid (that “burn” you feel when exercising) to microtears, the body’s post-workout job is to make the muscle stronger than before, and to do that, it needs you to have found the weak spots for it.
That’s what exercise-to-exhaustion does.
Eating carbs after a workout helps replace lost muscle glycogen.
For a lot more details on optimal nutrition timing in the context of exercise (carbs, proteins, micronutrients, different kinds of exercise, etc), check out this very clear guide:
International society of sports nutrition position stand: nutrient timing
Alcohol is not the post-workout carb you want
Shocking, right? But of course, it’s very common for casual sportspeople to hit the bar for a social drink after their activity of choice.
However, consuming alcohol after exercise doesn’t merely fail to help, it actively inhibits glycogen replacement and protein synthesis:
Also, if you’re tempted to take alcohol “to relax”, please be aware that alcohol only feels relaxing because of what it does to the brain; to the rest of the body, it is anything but, and also raises blood pressure and cortisol levels.
As to what to drink instead…
Hydrate, and consider creatine and tart cherry supplementation
Hydration is a no-brainer, but when you’re dehydrated, it’s easy to forget!
Creatine is a very well-studied supplement, that helps recovery from intense exercise:
Tart cherry juice has been found to reduce muscle damage, soreness, and inflammation after exercise:
Wondering where you can get tart cherry powder? We don’t sell it (or anything else), but here’s an example product on Amazon.
And of course, actually rest
That includes good sleep, please. Otherwise…
Effects of Sleep Deprivation on Acute Skeletal Muscle Recovery after Exercise
Rest well!
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Good to Go – by Christie Aschwanden
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Many of us may more often need to recover from a day of moving furniture than running a marathon, but the science of recovery can still teach us a lot. The author, herself an endurance athlete and much-decorated science journalist, sets out to do just that.
She explores a lot of recovery methods, and examines whether the science actually backs them up, and if so, to what degree. She also, in true science journalism style, talks to a lot of professionals ranging from fellow athletes to fellow scientists, to get their input too—she is nothing if not thorough, and this is certainly not a book of one person’s opinion with something to sell.
Indeed, on the contrary, her findings show that some of the best recovery methods are the cheapest, or even free. She also looks at the psychological aspect though, and why many people are likely to continue with things that objectively do not work better than placebo.
The style is very easy-reading jargon-free pop-science, while nevertheless being backed up with hundreds of studies cited in the bibliography—a perfect balance of readability and reliability.
Bottom line: for those who wish to be better informed about how to recover quickly and easily, this book is a treasure trove of information well-presented.
Click here to check out Good To Go, and always be good to go!
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