The Exercise That Protects Your Brain
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The Neuroscientist In The Gym
This is Dr. Wendy Suzuki. She’s a neuroscientist, and an expert in the neurobiology of memory, as well as neuroplasticity, and the role of exercise in neuroprotection.
We’ve sneakily semi-featured her before when we shared her Big Think talk:
Brain Benefits In Three Months… Through Walking?
Today we’re going to expand on that a little!
A Quick Recap
To share the absolute key points of that already fairly streamlined rundown:
- Exercise boosts levels of neurotransmitters such as dopamine and serotonin (and, which wasn’t mentioned there, noradrenaline)
- These are responsible for motivation, happiness, and focus (amongst other things)
- Persistent exercise boosts certain regions of the brain in particular, most notably the pre-frontal cortex and the hippocampi*
- These are responsible for planning and memory (amongst other things)
Dr. Suzuki advocates for stepping up your exercise routine if you can, with more exercise generally being better than less (unless you have some special medical reason why that’s not the case for you).
*often referred to in the singular as the hippocampus, but you have one on each side of your brain (unless a serious accident/incident destroyed one, but you’ll know if that applies to you, unless you lost both, in which case you will not remember about it).
What kind(s) of workout?
While a varied workout is best for overall health, for these brain benefits specifically, what’s most important is that it raises your heart rate.
This is why in her Big Think talk we shared before, she talks about the benefits of taking a brisk walk daily. See also:
If that’s not your thing, though (and/or is for whatever reason an inaccessible form of exercise for you), there is almost certainly some kind of High Intensity Interval Training that is a possibility for you. That might sound intimidating, but if you have a bit of floor and can exercise for one minute at a time, then HIIT is an option for you:
How To Do HIIT (Without Wrecking Your Body)
Dr. Suzuki herself is an ardent fan of “intenSati” which blends cardio workouts with yoga for holistic mind-and-body fitness. In fact, she loves it so much that she became a certified exercise instructor:
How much is enough?
It’s natural to want to know the minimum we can do to get results, but Dr. Suzuki would like us to bear in mind that when it comes to our time spent exercising, it’s not so much an expense of time as an investment in time:
❝Exercise is something that when you spend time on it, it will buy you time when you start to work❞
Read more: A Neuroscientist Experimented on Her Students and Found a Powerful Way to Improve Brain Function
Ok, but we really want to know how much!
Dr. Suzuki recommends at least three to four 30-minute exercise sessions per week.
Note: this adds up to less than the recommended 150 minutes of moderate exercise per week, but high-intensity exercise counts for twice the minutes for these purposes, e.g. 1 minute of high-intensity exercise is worth 2 minutes of moderate exercise.
How soon will we see benefits?
Benefits start immediately, but stack up cumulatively with continued long-term exercise:
❝My lab showed that a single workout can improve your ability to shift and focus attention, and that focus improvement will last for at least two hours. ❞
…which is a great start, but what’s more exciting is…
❝The more you’re working out, the bigger and stronger your hippocampus and prefrontal cortex gets. Why is that important?
Because the prefrontal cortex and the hippocampus are the two areas that are most susceptible to neurodegenerative diseases and normal cognitive decline in aging. ❞
In other words, while improving your heart rate through regular exercise will help prevent neurodegeneration by the usual mechanism of reducing neuroinflammation… It’ll also build the parts of your brain most susceptible to decline, meaning that when/if decline sets in, it’ll take a lot longer to get to a critical level of degradation, because it had more to start with.
Read more:
Inspir Modern Senior Living | Dr. Wendy Suzuki Boosts Brain Health with Exercise
Want more from Dr. Suzuki?
You might enjoy her TED talk:
Click Here If The Embedded Video Doesn’t Load Automatically
Prefer text? TED.com has a transcript for you
Prefer lots of text? You might like her book, which we haven’t reviewed yet but will soon:
Enjoy!
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Black Pepper’s Impressive Anti-Cancer Arsenal
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Black Pepper’s Impressive Anti-Cancer Arsenal (And More)
Piperine, a compound found in Piper nigrum (black pepper, to its friends), has many health benefits. It’s included as a minor ingredient in some other supplements, because it boosts bioavailability. In its form as a kitchen spice, it’s definitely a superfood.
What does it do?
First, three things that generally go together:
These things often go together for the simple reason that oxidative stress, inflammation, and cancer often go together. In each case, it’s a matter of cellular wear-and-tear, and what can mitigate that.
For what it’s worth, there’s generally a fourth pillar: anti-aging. This is again for the same reason. That said, black pepper hasn’t (so far as we could find) been studied specifically for its anti-aging properties, so we can’t cite that here as an evidence-based claim.
Nevertheless, it’s a reasonable inference that something that fights oxidation, inflammation, and cancer, will often also slow aging.
Special note on the anti-cancer properties
We noticed two very interesting things while researching piperine’s anti-cancer properties. It’s not just that it reduces cancer risk and slows tumor growth in extant cancers (as we might expect from the above-discussed properties). Let’s spotlight some studies:
It is selectively cytotoxic (that’s a good thing)
Piperine was found to be selectively cytotoxic to cancerous cells, while not being cytotoxic to non-cancerous cells. To this end, it’s a very promising cancer-sniper:
Piperine as a Potential Anti-cancer Agent: A Review on Preclinical Studies
It can reverse multi-drug resistance in cancer cells
P-glycoprotein, found in our body, is a drug-transporter that is known for “washing out” chemotherapeutic drugs from cancer cells. To date, no drug has been approved to inhibit P-glycoprotein, but piperine has been found to do the job:
Targeting P-glycoprotein: Investigation of piperine analogs for overcoming drug resistance in cancer
What’s this about piperine analogs, though? Basically the researchers found a way to “tweak” piperine to make it even more effective. They called this tweaked version “Pip1”, because calling it by its chemical name,
((2E,4E)-5-(benzo[d][1,3]dioxol-5-yl)-1-(6,7-dimethoxy-3,4-dihydroisoquinolin-2(1 H)-yl)penta-2,4-dien-1-one)
…got a bit unwieldy.
The upshot is: Pip1 is better, but piperine itself is also good.
Other benefits
Piperine does have other benefits too, but the above is what we were most excited to talk about today. Its other benefits include:
- Neuroprotective effects (against Alzheimer’s, Parkinson’s, and more)
- Blood-sugar balancing / antidiabetic effect
- Good for gut microbiome diversity
- Heart health benefits, including cholesterol-balancing
- Boosts bioavailability of other nutrients/drugs
Enjoy!
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Tranquility by Tuesday?
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I Know How She Does It: How Successful Women Make The Most of Their Time
This is Laura Vanderkam, author of “Tranquility By Tuesday” (amongst other books). Her “thing” is spending more time on what’s important, and less on what isn’t. Sounds simple, but she’s made a career out of it, so condensed here for you are…
Laura’s 7 Keys To Productivity
Key One: Plan your weeks on Fridays
You don’t want your Monday morning to be a “James Bond intro” (where everything is already in action and you’re just along for the ride, trying to figure out what’s going on). So, take some time last thing each Friday, to plan ahead for the following week!
Key Two: Measure what matters
Whatever that means to you. Laura tracks her use of time in half-hour blocks, and likes keeping track of streaks. For her, that means running daily and keeping a log of it. She also keeps track of the books she reads. For someone else it could be music practice, or a Duolingo streak, or eating fruit each day.
On which note…
“Dr. Greger’s Daily Dozen” is simpler than most nutrition trackers (where you must search for everything you eat, or scan barcodes for all ingredients).
Instead, it keeps track of whether you are having certain key health-giving foods often enough to maintain good health.
We might feature his method in a future edition of 10almonds, but for now, check the app out for yourself here:
Get Dr. Greger’s Daily Dozen on iOS / Get Dr. Greger’s Daily Dozen on Android
Dr. Greger’s Daily Dozen @ Nutrition Facts
Key Three: Figure out 2–3 “anchor” events for the weekend
Otherwise, it can become a bit of a haze and on Monday you find yourself thinking “where did the weekend go?”. So, plan some stuff! It doesn’t have to be anything out-of-this-world, just something that you can look forward to in advance and remember afterwards. It could be a meal out with your family, or a session doing some gardening, or a romantic night in with your partner. Whatever makes your life “living” and not passing you by!
Key Four: Tackle the toughest work first
You’ve probably heard about “swallowing frogs”. If not, there are various versions, usually attributed to Mark Twain.
Here’s one:
“If it’s your job to eat a frog, it’s best to do it first thing in the morning. And if it’s your job to eat two frogs, it’s best to eat the biggest one first.”
Top Productivity App “ToDoist” has an option for this, by the way!
Laura’s key advice here is: get the hard stuff done now! Before you get distracted or tired and postpone it to tomorrow (and then lather rinse repeat, so it never gets done)
10almonds Tip:
“But what if something’s really important but not as pressing as some less important, but more urgent tasks?”
Simple!
Set a timer (we love the Pomodoro method, by the way) and do one burst of the important-but-not-urgent task first. Then you can get to the more urgent stuff.
Repeat each day until the important-but-not-urgent task is done!
The 10almonds Team
Key Five: Use bits of time well
If, like many of us, you’ve a neverending “to read” list, use the 5–10 minute breaks that get enforced upon us periodically through the day!
- Use those few minutes before a meeting/phonecall!
- Use the time you spend waiting for public transport or riding on it!
- Use the time you spent waiting for a family member to finish doing a thing!
All those 5–10 minute bits soon add up… You might as well spend that time reading something you know will add value to your life, rather than browsing social media, for example.
Key Six: Make very short daily to-do lists
By “short”, Laura considers this “under 10 items”. Do this as the last part of your working day, ready for tomorrow. Not at bedtime! Bedtime is for winding down, not winding up
Key Seven: Have a bedtime
Laura shoots for 10:30pm, but whatever works for you and your morning responsibilities. Your morning responsibilities aren’t tied to a specific time? Lucky you, but try to keep a bedtime anyway. Otherwise, your daily rhythm can end up sliding around the clock, especially if you work from home!
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Unlock Your Air-Fryer’s Potential!
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Unlock Your Air-Fryer’s Potential!
You know what they say:
“you get out of it what you put in”
…and in the case of an air-fryer, that’s very true!
More seriously:
A lot of people buy an air fryer for its health benefits and convenience, make fries a couple of times, and then mostly let it gather dust. But for those who want to unlock its potential, there’s plenty more it can do!
Let’s go over the basics first…
Isn’t it just a tiny convection oven?
Mechanically, yes. But the reason that it can be used to “air-fry” food rather than merely bake or roast the food is because of its tiny size allowing for much more rapid cooking at high temperatures.
On which note… If you’re shopping for an air-fryer:
- First of all, congratulations! You’re going to love it.
- Secondly: bigger is not better. If you go over more than about 4 liters capacity, then you don’t have an air-fryer; you have a convection oven. Which is great and all, but probably not what you wanted.
Are there health benefits beyond using less oil?
It also creates much less acrylamide than deep-frying starchy foods does. The jury is out on the health risks of acrylamide, but we can say with confidence: it’s not exactly a health food.
I tried it, but the food doesn’t cook or just burns!
The usual reason for this is either over-packing the fryer compartment (air needs to be able to circulate!), or not coating the contents in oil. The oil only needs to be a super-thin layer, but it does need to be there, or else again, you’re just baking things.
Two ways to get a super thin layer of oil on your food:
- (works for anything you can air-fry) spray the food with oil. You can buy spray-on oils at the grocery store (Fry-light and similar brands are great), or put oil in little spray bottle (of the kind that you might buy for haircare) yourself.
- (works with anything that can be shaken vigorously without harming it, e.g. root vegetables) chop the food, and put it in a tub (or a pan with a lid) with about a tablespoon of olive oil. Don’t worry if that looks like it’s not nearly enough—it will be! Now’s a great time to add your seasonings* too, by the way. Put the lid on, and holding the lid firmly in place, shake the tub/pan/whatever vigorously. Open it, and you’ll find the oil has now distributed itself into a very thin layer all over the food.
*About those seasonings…
Obviously not everything will go with everything, but some very healthful seasonings to consider adding are:
- Garlic minced/granules/powder (great for the heart and immune health)
- Black pepper (boosts absorption of other nutrients, and provides more benefits of its own than we can list here)
- Turmeric (slows aging and has anti-cancer properties)
- Cinnamon (great for the heart and has anti-inflammatory properties)
Garlic and black pepper can go with almost anything (and in this writer’s house, they usually do!)
Turmeric has a sweet nutty taste, and will add its color anything it touches. So if you want beautiful golden fries, perfect! If you don’t want yellow eggplant, maybe skip it.
Cinnamon is, of course, great as part of breakfast and dessert dishes
On which note, things most people don’t think of air-frying:
- Breakfast frittata—the healthy way!
- Omelets—no more accidental scrambled egg and you don’t have to babysit it! Just take out the tray that things normally sit on, and build it directly onto the (spray-oiled) bottom of the air-fryer pan. If you’re worried it’ll burn: a) it won’t, because the heat is coming from above, not below b) you can always use greaseproof paper or even a small heatproof plate
- French toast—again with no cooking skills required
- Fish cakes—make the patties as normal, spray-oil and lightly bread them
- Cauliflower bites—spray oil or do the pan-jiggle we described; for seasonings, we recommend adding smoked paprika and, if you like heat, your preferred kind of hot pepper! These are delicious, and an amazing healthy snack that feels like junk food.
- Falafel—make the balls as usual, spray-oil (do not jiggle violently; they won’t have the structural integrity for that) and air-fry!
- Calamari (vegan option: onion rings!)—cut the squid (or onions) into rings, and lightly coat in batter and refrigerate for about an hour before air-frying at the highest heat your fryer does. This is critical, because air-fryers don’t like wet things, and if you don’t refrigerate it and then use a high heat, the batter will just drip, and you don’t want that. But with those two tips, it’ll work just great.
Want more ideas?
Check out EatingWell’s 65+ Healthy Air-Fryer Recipes ← the recipes are right there, no need to fight one’s way to them in any fashion!
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Brain Maker – by Dr. David Perlmutter
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Regular 10almonds readers probably know about the gut-brain connection already, so what’s new here?
Dr. David Perlmutter takes us on a tour of gut and brain health, specifically, the neuroprotective effect of healthy gut microbiota.
This seems unlikely! After all, vagus nerve or no, the gut microbiota are confined to the gut, and the brain is kept behind the blood-brain barrier. So how does one thing protect the other?
Dr. Perlmutter presents the relevant science, and the honest answer is, we’re not 100% sure how this happens! We do know part of it: that bad gut microbiota can result in a “leaky gut”, and that may in turn lead to such a thing as a “leaky brain”, where the blood-brain barrier has been compromised and some bad things can get in with the blood.
When it comes to gut-brain health…
Not only is the correlation very strong, but also, in tests where someone’s gut microbiota underwent a radical change, e.g. due to…
- antibiotics (bad)
- fasting (good)
- or a change in diet (either way)
…their brain health changed accordingly—something we can’t easily check outside of a lab, but was pretty clear in those tests.
We’re also treated to an exposé on the links between gut health, brain health, inflammation, and dementia… Which links are extensive.
In closing, we’ll mention that throughout this book we’re also given many tips and advices to improve our gut/brain health, reverse damage done already, and set ourselves up well for the future.
Click here to check out “Brain Maker” on Amazon and take care of this important part of your health!
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The Health Fix – by Dr. Ayan Panja
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The book is divided into three main sections:
- The foundations
- The aspirations
- The fixes
The foundations are an overview of the things you’re going to need to know, about biology, behaviors, and being human.
The aspirations are research-generated common hopes, desires, dreams and goals of patients who have come to Dr. Panja for help.
The fixes are exactly what you’d hope them to be. They’re strategies, tools, hacks, tips, tricks, to get you from where you are now to where you want to be, health-wise.
The book is well-structured, with deep-dives, summaries, and practical advice of how to make sure everything you’re doing works together as part of the big picture that you’re building for your health.
All in all, a fantastic catch-all book, whatever your health goals.
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Walking can prevent low back pain, a new study shows
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Do you suffer from low back pain that recurs regularly? If you do, you’re not alone. Roughly 70% of people who recover from an episode of low back pain will experience a new episode in the following year.
The recurrent nature of low back pain is a major contributor to the enormous burden low back pain places on individuals and the health-care system.
In our new study, published today in The Lancet, we found that a program combining walking and education can effectively reduce the recurrence of low back pain.
PeopleImages.com – Yuri A/Shutterstock The WalkBack trial
We randomly assigned 701 adults who had recently recovered from an episode of low back pain to receive an individualised walking program and education (intervention), or to a no treatment group (control).
Participants in the intervention group were guided by physiotherapists across six sessions, over a six-month period. In the first, third and fifth sessions, the physiotherapist helped each participant to develop a personalised and progressive walking program that was realistic and tailored to their specific needs and preferences.
The remaining sessions were short check-ins (typically less than 15 minutes) to monitor progress and troubleshoot any potential barriers to engagement with the walking program. Due to the COVID pandemic, most participants received the entire intervention via telehealth, using video consultations and phone calls.
Low back pain can be debilitating. Karolina Kaboompics/Pexels The program was designed to be manageable, with a target of five walks per week of roughly 30 minutes daily by the end of the six-month program. Participants were also encouraged to continue walking independently after the program.
Importantly, the walking program was combined with education provided by the physiotherapists during the six sessions. This education aimed to give people a better understanding of pain, reduce fear associated with exercise and movement, and give people the confidence to self-manage any minor recurrences if they occurred.
People in the control group received no preventative treatment or education. This reflects what typically occurs after people recover from an episode of low back pain and are discharged from care.
What the results showed
We monitored the participants monthly from the time they were enrolled in the study, for up to three years, to collect information about any new recurrences of low back pain they may have experienced. We also asked participants to report on any costs related to their back pain, including time off work and the use of health-care services.
The intervention reduced the risk of a recurrence of low back pain that limited daily activity by 28%, while the recurrence of low back pain leading participants to seek care from a health professional decreased by 43%.
Participants who received the intervention had a longer average period before they had a recurrence, with a median of 208 days pain-free, compared to 112 days in the control group.
In our study, regular walking appeared to help with low back pain. PeopleImages.com – Yuri A/Shutterstock Overall, we also found this intervention to be cost-effective. The biggest savings came from less work absenteeism and less health service use (such as physiotherapy and massage) among the intervention group.
This trial, like all studies, had some limitations to consider. Although we tried to recruit a wide sample, we found that most participants were female, aged between 43 and 66, and were generally well educated. This may limit the extent to which we can generalise our findings.
Also, in this trial, we used physiotherapists who were up-skilled in health coaching. So we don’t know whether the intervention would achieve the same impact if it were to be delivered by other clinicians.
Walking has multiple benefits
We’ve all heard the saying that “prevention is better than a cure” – and it’s true. But this approach has been largely neglected when it comes to low back pain. Almost all previous studies have focused on treating episodes of pain, not preventing future back pain.
A limited number of small studies have shown that exercise and education can help prevent low back pain. However, most of these studies focused on exercises that are not accessible to everyone due to factors such as high cost, complexity, and the need for supervision from health-care or fitness professionals.
On the other hand, walking is a free, accessible way to exercise, including for people in rural and remote areas with limited access to health care.
Walking has a variety of advantages. Cast Of Thousands/Shutterstock Walking also delivers many other health benefits, including better heart health, improved mood and sleep quality, and reduced risk of several chronic diseases.
While walking is not everyone’s favourite form of exercise, the intervention was well-received by most people in our study. Participants reported that the additional general health benefits contributed to their ongoing motivation to continue the walking program independently.
Why is walking helpful for low back pain?
We don’t know exactly why walking is effective for preventing back pain, but possible reasons could include the combination of gentle movements, loading and strengthening of the spinal structures and muscles. It also could be related to relaxation and stress relief, and the release of “feel-good” endorphins, which block pain signals between your body and brain – essentially turning down the dial on pain.
It’s possible that other accessible and low-cost forms of exercise, such as swimming, may also be effective in preventing back pain, but surprisingly, no studies have investigated this.
Preventing low back pain is not easy. But these findings give us hope that we are getting closer to a solution, one step at a time.
Tash Pocovi, Postdoctoral research fellow, Department of Health Sciences, Macquarie University; Christine Lin, Professor, Institute for Musculoskeletal Health, University of Sydney; Mark Hancock, Professor of Physiotherapy, Macquarie University; Petra Graham, Associate Professor, School of Mathematical and Physical Sciences, Macquarie University, and Simon French, Professor of Musculoskeletal Disorders, Macquarie University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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