The Physical Exercises That Build Your Brain
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Jim Kwik: from broken brain to brain coach
This is Jim Kwik. He suffered a traumatic brain injury as a small child, and later taught himself to read and write by reading comic books. He became fascinated with the process of learning, and in his late 20s he set up Kwik Learning, to teach accelerated learning in classrooms and companies, which he continued until 2009 when he launched his online learning platform. His courses have now been enjoyed by people in 195 countries.
So, since accelerated learning is his thing, you might wonder…
What does he have to share that we can benefit from in the next five minutes?
Three brain exercises to improve memory and concentration
A lot of problems we have with working memory are a case of executive dysfunction, but there are tricks we can use to get our brains into gear and make them cumulatively stronger:
First exercise
You can strengthen your corpus callosum (the little bridge between the two hemispheres of the brain) by performing a simple kinesiological exercise, such as alternating touching your left elbow to your right knee, and touching your right elbow to your left knee.
Do it for about a minute, but the goal here is not a cardio exercise, it’s accuracy!
You want to touch your elbow and opposite knee to each other as precisely as possible each time. Not missing slightly off to the side, not falling slightly short, not hitting it too hard.
Second exercise
Put your hands out in front of you, as though you’re about to type at a keyboard. Now, turn your hands palm-upwards. Now back to where they were. Now palm-upwards again. Got it? Good.
That’s not the exercise, the exercise is:
You’re now going to do the same thing, but do it twice as quickly with one hand than the other. So they’ll still be flipping to the same basic “beat”, put it in musical terms, the tempo on one hand will now be twice that of the other. When you get the hang of that, switch hands and do the other side.
This is again about the corpus callosum, but it’s now adding an extra level of challenge because of holding the two rhythms separately, which is also working the frontal lobe of the cerebral cortex.
The pre-frontal cortex in particular is incredibly important to executive function, self-discipline, and being able to “do” delayed gratification. So this exercise is really important!
Third exercise
This one works the same features of the brain, but most people find it harder. So, consider it a level-up on the previous:
Imagine there’s a bicycle wheel in front of you (as though the bike is facing you at chest-height). Turn the wheel towards you with your hands, one on each side.
Now, do the same thing, but each of your hands is going in the opposite direction. So one is turning the wheel towards you; the other is turning it away from you.
Now, do the same thing, but one hand goes twice as quickly as the other.
Switch sides.
Why is this harder for most people than the previous? Because the previous involved processing discrete (distinct from each other) movements while this one involves analog continuous movements.
It’s like reading an analog clock vs a digital clock, but while using both halves of your brain, your corpus callosum, your pre-frontal cortex, and the motor cortex too.
Want to learn more?
You might enjoy his book, which as well as offering exercises like the above, also offers a lot about learning strategies, memory processes, and generally building a quicker more efficient brain:
Limitless: Upgrade Your Brain, Learn Anything Faster, and Unlock Your Exceptional Life
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Sea Salt vs MSG – Which is Healthier?
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Our Verdict
When comparing sea salt to MSG, we picked the MSG.
Why?
Surprise! Or maybe not? The results of the poll for this one should be interesting, and will help us know whether we need to keep mentioning in every second recipe that MSG is a healthier alternative to salt.
First of all, two things:
- Don’t be fooled by their respective names, and/or with such, an appeal to naturalism. For example, hydroxybenzoic acids are a major group of beneficial phenolic compounds, whereas hemlock is a wildflower that grows in this writer’s garden and will kill you if you eat it. Actually hydroxybenzoic acids also grow here (on the apple tree), but that’s not the point. The point is: worry less about names, and more about evidence!
- Don’t be fooled by the packaging. A lot of products go for “greenwashing” of one kind or another. You’re not eating the packaging (hopefully), so don’t be swayed by a graphic designer’s implementation of a marketing team’s aesthetic choices.
If naturalism is for some reason very important to you though, do bear in mind that glutamates occur generously in many common foodstuffs (tomatoes are a fine, healthy example) and eating tomato in the presence of salt will have the same biochemical effect as eating MSG, because it’s the same chemicals.
Since there are bad rumors about MSG’s safety, especially in the US where there is often a strong distrust of anything associated with China (actually MSG was first isolated in Japan, more than 100 years ago, by Japanese biochemist Dr. Kikunae Ikeda, but that gets drowned out by the “Chinese Restaurant Syndrome” fear in the US), know that this has resulted in MSG being one of the most-studied food additives in the last 40 years or so, with many teams of scientists trying to determine its risks and not finding any (aside from the same that could be said of any substance; anything in sufficient excess will kill you, including water or oxygen).
Well, that’s all been about safety, but what makes it healthier than sea salt?
Simply, it has about ⅓ of the sodium content, that’s all. So, if you are laboring all day in a field under the hot summer sun, then probably the sea salt will be healthier, to replenish more of the sodium you lost through sweat. But for most people most of the time, having less sodium rather than more is the healthier option.
Want to learn more?
You might like to read:
- Monosodium Glutamate: Sinless Flavor-Enhancer Or Terrible Health Risk?
- MSG vs. Salt: Sodium Comparison ← here be chemistry
- More Salt, Not Less? ← No
- Pink Himalayan Salt: Health Facts
Take care!
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Beetroot vs Red Cabbage – Which is Healthier?
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Our Verdict
When comparing beetroot to red cabbage, we picked the red cabbage.
Why?
Both are great, and both have their strengths!
In terms of macros, beetroot has very slightly more protein, carbs, and fiber, but the margins of difference are very small in each case. However, in terms of glycemic index, red cabbage has the considerably lower glycemic index, of 32 (low) as opposed to beetroot’s GI of 64 (medium). On the strength of this GI difference, we call this category a win for red cabbage.
In the category of vitamins, beetroot has more of vitamin B9, while red cabbage has a lot more of vitamins A, B1, B2, B3, B6, C, E, K, and choline. By strength of numbers and also by having very large margins of difference on most of those, red cabbage is the clear winner here.
When it comes to minerals, beetroot has more copper, magnesium, manganese, phosphorus, and potassium, while red cabbage has more calcium (and about ⅓ of the sodium). By the numbers, this is a win for beetroot, though it’s worth noting that the margins of difference were small, i.e. red cabbage was right behind beetroot on each of those.
Adding up the sections makes for an overall red cabbage win, but as we say, beetroot is great too, especially when it comes to minerals!
As ever, enjoy either or both; diversity is good.
Want to learn more?
You might like to read:
No, beetroot isn’t vegetable Viagra. But here’s what it can do!
Enjoy!
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Think Again – by Adam Grant
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Warning: this book may cause some feelings of self-doubt! Ride them out and see where they go, though.
It was Socrates who famously (allegedly) said “ἓν οἶδα ὅτι οὐδὲν οἶδα”—”I know that I know nothing”.
Adam Grant wants us to take this philosophy and apply it usefully to modern life. How?
The main premise is that rethinking our plans, answers and decisions is a good thing… Not a weakness. In contrast, he says, a fixed mindset closes us to opportunities—and better alternatives.
He wants us to be sure that we don’t fall into the trap of the Dunning-Kruger Effect (overestimating our abilities because of being unaware of how little we know), but he also wants us to rethink whole strategies, too. For example:
Grant’s approach to interpersonal conflict is very remniscent of another book we might review sometime, “Aikido in Everyday Life“. The idea here is to not give in to our knee-jerk responses to simply retaliate in kind, but rather to sidestep, pivot, redirect. This is, admittedly, the kind of “rethinking” that one usually has to rethink in advance—it’s too late in the moment! Hence the value of a book.
Nor is the book unduly subjective. “Wishy-washiness” has a bad rep, but Grant gives us plenty in the way of data and examples of how we can, for example, avoid losses by not doubling down on a mistake.
What, then, of strongly-held core principles? Rethinking doesn’t mean we must change our mind—it simply means being open to the possibility in contexts where such makes sense.
Grant borrows, in effect, from:
❝Do the best you can until you know better. Then when you know better… do better!❞
So, not so much undercutting the principles we hold dear, and instead rather making sure they stand on firm foundations.
All in all, a thought-provokingly inspiring read!
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Super-Nutritious Shchi
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Today we have a recipe we’ve mentioned before, but now we have standalone recipe pages for recipes, so here we go. The dish of the day is shchi—which is Russian cabbage soup, which sounds terrible, and looks as bad as it sounds. But it tastes delicious, is an incredible comfort food, and is famous (in Russia, at least) for being something one can eat for many days in a row without getting sick of it.
It’s also got an amazing nutritional profile, with vitamins A, B, C, D, as well as lots of calcium, magnesium, and iron (amongst other minerals), and a healthy blend of carbohydrates, proteins, and fats, plus an array of anti-inflammatory phytochemicals, and of course, water.
You will need
- 1 large white cabbage, shredded
- 1 cup red lentils
- ½ lb tomatoes, cut into eighths (as in: halve them, halve the halves, and halve the quarters)
- ½ lb mushrooms sliced (or halved, if they are baby button mushrooms)
- 1 large onion, chopped finely
- 1 tbsp rosemary, chopped finely
- 1 tbsp thyme, chopped finely
- 1 tbsp black pepper, coarse ground
- 1 tsp cumin, ground
- 1 tsp yeast extract
- 1 tsp MSG, or 2 tsp low-sodium salt
- A little parsley for garnishing
- A little fat for cooking; this one’s a tricky and personal decision. Butter is traditional, but would make this recipe impossible to cook without going over the recommended limit for saturated fat. Avocado oil is healthy, relatively neutral in taste, and has a high smoke point for caramelizing the onions. Extra virgin olive oil is also a healthy choice, but not as neutral in flavor and does have a lower smoke point. Coconut oil has far too strong a taste and a low smoke point. Seed oils are very heart-unhealthy. All in all, avocado oil is a respectable choice from all angles except tradition.
Note: with regard to the seasonings, the above is a basic starting guide; feel free to add more per your preference—however, we do not recommend adding more cumin (it’ll overpower it) or more salt (there’s enough sodium in here already).
Method
(we suggest you read everything at least once before doing anything)
1) Cook the lentils until soft (a rice cooker is great for this, but a saucepan is fine); be generous with the water; we are making a soup, after all. Set them aside without draining.
2) Sauté the cabbage, and put it in a big stock pot or similar large pan (not yet on the heat)
3) Fry the mushrooms, and add them to the big pot (still not yet on the heat)
4) Use a stick blender to blend the lentils in the water you cooked them in, and then add to the big pot too.
5) Turn the heat on low, and if necessary, add more water to make it into a rich soup
6) Add the seasonings (rosemary, thyme, cumin, black pepper, yeast extract, MSG-or-salt) and stir well. Keep the temperature on low; you can just let it simmer now because the next step is going to take a while:
7) Caramelize the onion (keep an eye on the big pot, stirring occasionally) and set it aside
8) Fry the tomatoes quickly (we want them cooked, but just barely) and add them to the big pot
9) Serve! The caramelized onion is a garnish, so put a little on top of each bowl of shchi. Add a little parsley too.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Level-Up Your Fiber Intake! (Without Difficulty Or Discomfort)
- The Magic Of Mushrooms: “The Longevity Vitamin” (That’s Not A Vitamin)
- Easily Digestible Vegetarian Protein Sources
- The Bare-Bones Truth About Osteoporosis
- Some Surprising Truths About Hunger And Satiety
Take care!
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Say That Again: Using Hearing Aids Can Be Frustrating for Older Adults, but Necessary
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It was an every-other-day routine, full of frustration.
Every time my husband called his father, who was 94 when he died in 2022, he’d wait for his dad to find his hearing aids and put them in before they started talking.
Even then, my father-in-law could barely hear what my husband was saying. “What?” he’d ask over and over.
Then, there were the problems my father-in-law had replacing the devices’ batteries. And the times he’d end up in the hospital, unable to understand what people were saying because his hearing aids didn’t seem to be functioning. And the times he’d drop one of the devices and be unable to find it.
How many older adults have problems of this kind?
There’s no good data about this topic, according to Nicholas Reed, an assistant professor of epidemiology at Johns Hopkins Bloomberg School of Public Health who studies hearing loss. He did a literature search when I posed the question and came up empty.
Reed co-authored the most definitive study to date of hearing issues in older Americans, published in JAMA Open Network last year. Previous studies excluded people 80 and older. But data became available when a 2021 survey by the National Health and Aging Trends Study included hearing assessments conducted at people’s homes.
The results, based on a nationally representative sample of 2,803 people 71 and older, are eye-opening. Hearing problems become pervasive with advancing age, exceeding 90% in people 85 and older, compared with 53% of 71- to 74-year-olds. Also, hearing worsens over time, with more people experiencing moderate or severe deficits once they reach or exceed age 80, compared with people in their 70s.
However, only 29% of those with hearing loss used hearing aids. Multiple studies have documented barriers that inhibit use. Such devices, which Medicare doesn’t cover, are pricey, from nearly $1,000 for a good over-the-counter set (OTC hearing aids became available in 2022) to more than $6,000 for some prescription models. In some communities, hearing evaluation services are difficult to find. Also, people often associate hearing aids with being old and feel self-conscious about wearing them. And they tend to underestimate hearing problems that develop gradually.
Barbara Weinstein, a professor of audiology at the City University of New York Graduate Center and author of the textbook “Geriatric Audiology,” added another concern to this list when I reached out to her: usability.
“Hearing aids aren’t really designed for the population that most needs to use them,” she told me. “The move to make devices smaller and more sophisticated technologically isn’t right for many people who are older.”
That’s problematic because hearing loss raises the risk of cognitive decline, dementia, falls, depression, and social isolation.
What advice do specialists in hearing health have for older adults who have a hard time using their hearing aids? Here are some thoughts they shared.
Consider larger, customized devices. Many older people, especially those with arthritis, poor fine motor skills, compromised vision, and some degree of cognitive impairment, have a hard time manipulating small hearing aids and using them properly.
Lindsay Creed, associate director of audiology practices at the American Speech-Language-Hearing Association, said about half of her older clients have “some sort of dexterity issue, whether numbness or reduced movement or tremor or a lack of coordination.” Shekinah Mast, owner of Mast Audiology Services in Seaford, Delaware, estimates nearly half of her clients have vision issues.
For clients with dexterity challenges, Creed often recommends “behind-the-ear hearing aids,” with a loop over the ear, and customized molds that fit snugly in the ear. Customized earpieces are larger than standardized models.
“The more dexterity challenges you have, the better you’ll do with a larger device and with lots of practice picking it up, orienting it, and putting it in your ear,” said Marquitta Merkison, associate director of audiology practices at ASHA.
For older people with vision issues, Mast sometimes orders hearing aids in different colors for different ears. Also, she’ll help clients set up stands at home for storing devices, chargers, and accessories so they can readily find them each time they need them.
Opt for ease of use. Instead of buying devices that require replacing tiny batteries, select a device that can be charged overnight and operate for at least a day before being recharged, recommended Thomas Powers, a consultant to the Hearing Industries Association. These are now widely available.
People who are comfortable using a smartphone should consider using a phone app to change volume and other device settings. Dave Fabry, chief hearing health officer at Starkey, a major hearing aid manufacturer, said he has patients in their 80s and 90s “who’ve found that being able to hold a phone and use larger visible controls is easier than manipulating the hearing aid.”
If that’s too difficult, try a remote control. GN ReSound, another major manufacturer, has designed one with two large buttons that activate the volume control and programming for its hearing aids, said Megan Quilter, the company’s lead audiologist for research and development.
Check out accessories. Say you’re having trouble hearing other people in restaurants. You can ask the person across the table to clip a microphone to his shirt or put the mike in the center of the table. (The hearing aids will need to be programmed to allow the sound to be streamed to your ears.)
Another low-tech option: a hearing aid clip that connects to a piece of clothing to prevent a device from falling to the floor if it becomes dislodged from the ear.
Wear your hearing aids all day. “The No. 1 thing I hear from older adults is they think they don’t need to put on their hearing aids when they’re at home in a quiet environment,” said Erika Shakespeare, who owns Audiology and Hearing Aid Associates in La Grande, Oregon.
That’s based on a misunderstanding. Our brains need regular, not occasional, stimulation from our environments to optimize hearing, Shakespeare explained. This includes noises in seemingly quiet environments, such as the whoosh of a fan, the creak of a floor, or the wind’s wail outside a window.
“If the only time you wear hearing aids is when you think you need them, your brain doesn’t know how to process all those sounds,” she told me. Her rule of thumb: “Wear hearing aids all your waking hours.”
Consult a hearing professional. Everyone’s needs are different, so it’s a good idea to seek out an audiologist or hearing specialist who, for a fee, can provide guidance.
“Most older people are not going to know what they need” and what options exist without professional assistance, said Virginia Ramachandran, the head of audiology at Oticon, a major hearing aid manufacturer, and a past president of the American Academy of Audiology.
Her advice to older adults: Be “really open” about your challenges.
If you can’t afford hearing aids, ask a hearing professional for an appointment to go over features you should look for in over-the-counter devices. Make it clear you want the appointment to be about your needs, not a sales pitch, Reed said. Audiology practices don’t routinely offer this kind of service, but there’s good reason to ask since Medicare started covering once-a-year audiologist consultations last year.
We’re eager to hear from readers about questions you’d like answered, problems you’ve been having with your care, and advice you need in dealing with the health care system. Visit http://kffhealthnews.org/columnists to submit your requests or tips.
KFF Health News is a national newsroom that produces in-depth journalism about health issues and is one of the core operating programs at KFF—an independent source of health policy research, polling, and journalism. Learn more about KFF.
Subscribe to KFF Health News’ free Morning Briefing.
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South Indian-Style Chickpea & Mango Salad
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We have a double-dose of chickpeas today, but with all the other ingredients, this dish is anything but boring. Fun fact about chickpeas though: they’re rich in sitosterol, a plant sterol that, true to its name, sits on cholesterol absorption sites, reducing the amount of dietary cholesterol absorbed. If you are vegan, this will make no difference to you because your diet does not contain cholesterol, but for everyone else, this is a nice extra bonus!
You will need
- 1 can white chickpeas, drained and rinsed
- 1 can black chickpeas (kala chana), drained and rinsed
- 9 oz fresh mango, diced (or canned is fine if that’s what’s available)
- 1½ oz ginger, peeled and grated
- 2 green chilis, finely chopped (adjust per heat preferences)
- 2 tbsp desiccated coconut (or 3 oz grated coconut, if you have it fresh)
- 8 curry leaves (dried is fine if that’s what’s available)
- 1 tsp mustard seeds
- 1 tsp cumin seeds
- 1 tsp black pepper, coarse ground
- ½ tsp MSG or 1 tsp low-sodium salt
- Juice of 1 lime
- Extra virgin olive oil
Method
(we suggest you read everything at least once before doing anything)
1) Heat some oil in a skillet over a medium heat. When it’s hot but not smoking, add the ginger, chilis, curry leaves, mustard seeds, and cumin seeds, stirring well to combine, keep going until the mustard seeds start popping.
2) Add the chickpeas (both kinds), as well as the black pepper and the MSG/salt. Once they’re warm through, take it off the heat.
3) Add the mango, coconut, and lime juice, mixing thoroughly.
4) Serve warm, at room temperature, or cold:
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?
- Can Saturated Fats Be Healthy?
- Our Top 5 Spices: How Much Is Enough For Benefits?
Take care!
Don’t Forget…
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