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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Fall Special
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Some fall-themed advice…
It is now, nominally at least, fall. We’re going to talk about the other kind of “fall” though, the kind that results in broken hips and more.
If you’re thinking “not me; that happens to older more infirm people”, rest assured, it can and statistically probably will happen to you at some point. So, how to play the odds?
First, be robust!
We may not be able to make ourselves like children who bounce easily, but we also don’t have to crumble into dust at the slightest knock, either. There are two important ways we can start to make ourselves robust from the inside out, and they are simple: diet and exercise.
- Diet: The Bare-Bones Truth About Osteoporosis
- Exercise: Osteoporosis Exercises
“But I don’t have osteoporosis”—great! But osteoporosis is preceded by osteopenia, which is generally asymptomatic at first, and also if we’re not very careful about it, we will lose about 1% bone density per year from the age of about 35 onwards, with that rate of loss climbing sharply from the age of 50 onwards, and even more steeply in cases of untreated menopause.
So in other words, don’t take your bone strength for granted; there’s a first time for everything, and you don’t want to find out the hard (and yet, dare we say it, brittle) way.
Second, be dynamic!
Be able to fall and get up safely. If your later life is going to be a triathlon of things you need to train for now, then being able to fall and get up safely should be at the top of the list.
Being able to “deep squat” will help you a lot here, in being able to get up with minimal (or no) use of your hands. We shared a great instructional video about this last week.
It also means that the more your lower body can still take your weight while your torso is closer to the ground (without your legs buckling and collapsing, for instance), the softer and gentler you’ll hit the floor if you do fall, because the final “drop” will be from a lower height.
If at all possible, consider taking some classes of a martial art that involves safely falling—aikido is typically the softest and gentlest and is famously great for people of all ages, but judo or jujitsu will suffice if aikido isn’t available where you are. You don’t have to get a black belt (unless you want to), and any decent instructor will be happy to guide you through the basics of safely falling and then send you on your merry way, if that’s all you wanted.
The benefits of this are twofold:
- Obviously, if you fall, you will have better technique and thus be less likely to incur injury
- As you are falling, you will be less afraid, and thus less likely to tense up mid-fall (tensing up will exacerbate any falling injury)
Click here to find an aikido teacher near you (you can search by country, state, and city)
Third, be balanced!
Spending even just a few minutes each day working on your balance can go a long way.
Standing on one leg (and then the other) is a very good obvious starting point. Please, do so safely. The shower is not the best place to take up this practice, for instance. A nice safe grassy area is great. Your carpeted living room or bedroom is next-best.
Another great approach is the practice of bāguàzhǎng circle-walking.
Bāguà is tai chi’s lesser-known cousin, and those arts are two of the three main schools of wǔdāngquán. But, fear not, you don’t have to don orange robes and live atop the Wudang mountains to get what you need in this case.
To give a text-based summary: bāguàzhǎng circle-walking involves walking in a small circle, with a low center of gravity, moving one’s weight very purposefully from one leg to the other, keeping complete stability the whole time that one is (often!) on one leg.
Once you get good at this, you’ll see that this is essentially a super-enhanced version of the “standing on one leg” exercise, because it’s about keeping balance while on one leg, and/but while moving also.
Naturally, if you do get good at this, you’ll be very unlikely to fall in the first place.
Here’s a visual primer. This video will show the basic footwork, and the video that follows it (it’ll prompt you if you want to watch it) shows how to bring it up to a standard walking speed, without losing fluidity of movement:
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Brave – by Dr. Margie Warrell
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Whether it’s the courage to jump out of a plane or the courage to have a difficult conversation, bravery is an important quality that we often don’t go far out of our way to grow. At least, not as adults.
Rather than viewing bravery as a static attribute—you either have it or you don’t—psychologist Dr. Margie Warrell makes the case for its potential for lifelong development.
The book is divided into five sections:
- Live purposefully
- Speak bravely
- Work passionately
- Dig deep
- Dare boldly
…and each has approximately 10 chapters, each a few pages long, the kind that can easily make this a “chapter-a-day” daily reader.
As a quick clarification: that “speak bravely” section isn’t about public speaking, but is rather about speaking up when it counts. Life is too short for regrets, and our interactions with others tend to be what matters most in the long-run. It makes a huge difference to our life!
Dr. Warrell gives us tools to reframe our challenges and tackle them. Rather than just saying “Feel the fear and do it anyway”, she also delivers the how, in all aspects. This is one of the main values the book brings, as well as a sometimes-needed reminder of how and why being brave is something to which we should always aspire… and hold.
Bottom line: if you’d like to be more brave—in any context—this book can help. We only get one life; might as well live it.
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Feta Cheese vs Mozzarella – Which is Healthier?
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Our Verdict
When comparing feta to mozzarella, we picked the mozzarella.
Why?
There are possible arguments for both, but there are a couple of factors that we think tip the balance.
In terms of macronutrients, feta has more fat, of which, more saturated fat, and more cholesterol. Meanwhile, mozzarella has about twice the protein, which is substantial for a cheese. So this section’s a fair win for mozzarella.
In the category of vitamins, however, feta wins with more of vitamins B1, B2, B3, B6, B9, B12, D, & E. In contrast, mozzarella boasts only a little more vitamin A and choline. An easy win for feta in this section.
When it comes to minerals, the matter is decided, we say. Mozzarella has more calcium, magnesium, phosphorus, and potassium, while feta has more copper, iron, and (which counts against it) sodium. A win for mozzarella.
About that sodium… A cup of mozzarella contains about 3% of the RDA of sodium, while a cup of feta contains about 120% of the RDA of sodium. You see the problem? So, while mozzarella was already winning based on adding up the previous categories, the sodium content alone is a reason to choose mozzarella for your salad rather than feta.
That settles it, but just before we close, we’ll mention that they do both have great gut-healthy properties, containing healthy probiotics.
In short: if it weren’t for the difference in sodium content, this would be a narrow win for mozzarella. As it is, however, it’s a clear win.
Want to learn more?
You might like to read:
- Making Friends With Your Gut (You Can Thank Us Later)
- Is Dairy Scary? ← the answer is “it can be, but it depends on the product, and some are healthy; the key is in knowing which”
- How Too Much Salt May Lead To Organ Failure
Take care!
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Alzheimer’s Risk Reduction Methods
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It’s Q&A Day!
Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!
This newsletter has been growing a lot lately, and so have the questions/requests, and we love that! 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
Q: I am now in the “aging” population. A great concern for me is Alzheimers. My father had it and I am so worried. What is the latest research on prevention?
Very important stuff! We wrote about this not long back:
- See: How To Reduce Your Alzheimer’s Risk
- See also: Brain Food? The Eyes Have It!
(one good thing to note is that while Alzheimer’s has a genetic component, it doesn’t appear to be hereditary per se. Still, good to be on top of these things, and it’s never too early to start with preventive measures!)
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Muir Glen Organic vs First Field Original – Which is Healthier?
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Our Verdict
When comparing Muir Glen Organic Ketchup to First Field Original Ketchup, we picked the First Field.
Why?
This one was a little unfair to you, as you can’t turn them around to read the ingredients here. But the point we want to share the most today is: you have to turn them around and read the ingredients! You absolutely cannot rely on appearances!
While the Muir Glen Organic may have a very “greenwashed” aesthetic going on and the word “organic” is more eye-catching than any other word on the label, it contains 4x as much sugar and 4x as much sodium.
Side-by-side, they have, per tablespoon:
First Field Original: 1g sugar, 60mg sodium
Muir Glen Organic: 4g sugar, 240mg sodiumBut what about the importance of being organic?
Well, we have one more surprise for you: the First Field ketchup is organic too, non-GMO, and contains no added concentrates either.
This isn’t an ad for First Field (by all means enjoy their products or don’t; we’re not invested), but it is a heartfelt plea to always check the backs of products and read the labels, because fronts of products can’t be relied upon at all.
I’m sure we all get caught out sometimes, but the less often, the better!
PS: we write this, of course, before seeing the results of your voting. Maybe it won’t be a “Muir Glen Organic” sweep in the polls. But either way, it’s a call to vigilance, and a “very good, carry on” to everyone who does this already
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The Plant-Based Diet Revolution – by Dr. Alan Desomond
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Is this just another gut-healthy cooking guide? Not entirely…
For a start, it’s not just about giving you a healthy gut; it also covers a healthy heart and a healthy brain. There’s lots of science in here!
It’s also aimed as a transitional guide to eating more plants and fewer animal products, if you so choose. And if you don’t so choose, at least having the flexibility to cook both ways.
The recipes themselves (organized into basics, breakfasts, lunches, mains, desserts) are clear and easy while also being calculated to please readers (and their families) who are used to eating more meat. There are, for instance, plenty of healthy proteins, healthy fats, and comfort foods.
The “28 days” of the title refers to a meal plan using the recipes from the book; it’s not a big feature of the book though, so use it or don’t, but the cooking advice itself is more than worth the price of the book and the recipes are certainly great.
Bottom line: if you’re thinking of taking a “Meatless Mondays” approach to making your diet healthier, this book can help you do that in style!
Click here to check out The Plant-Based Diet Revolution, and upgrade your culinary repertoire!
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