Healthy Brain, Happy Life – by Dr. Wendy Suzuki
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We talked about Dr. Wendy Suzuki’s research in the category of exercise and brain-benefits in our main feature the other day. But she has more to say than we can fit into an article!
This book chronicles her discoveries, through her work in memory and neuroplasticity, to her discoveries about exercise, and her dive into broader neurology-based mental health. So what does neurology-based mental health look like?
The answer is: mitigating brain-busters such as stress and anxiety, revitalizing a fatigued brain, boosting creativity, and other such benefits.
Does she argue that exercise is a cure-all? No, not quite. Sometimes there are other things she’s recommending (such as in her chapter on challenging the neurobiology of the stress response, or her chapter on meditation and the brain).
The writing style is mostly casual, interspersed with occasional mini-lectures (complete with diagrams and other illustrations), and is very readable and informative throughout.
Bottom line: if you’d like the more in-depth details of Dr. Suzuki’s work, this book is a very accessible way to get 320 pages of that!
Click here to check out Healthy Brain, Happy Life, and give yours the best!
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Fight Inflammation & Protect Your Brain, With Quercetin
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Querying Quercetin
Quercetin is a flavonoid (and thus, antioxidant) pigment found in many plants. Capers, radishes, and coriander/cilantro score highly, but the list is large:
USDA Database for the Flavonoid Content of Selected Foods
Indeed,
❝Their regular consumption is associated with reduced risk of a number of chronic diseases, including cancer, cardiovascular disease (CVD) and neurodegenerative disorders❞
~ Dr. Aleksandra Kozłpwsla & Dr. Dorota Szostak-Wegierek
Read more: Flavonoids—food sources and health benefits
For this reason, quercetin is often sold/consumed as a supplement on the strength of its health-giving properties.
But what does the science say?
Quercetin and inflammation
In short, it helps:
❝500 mg per day quercetin supplementation for 8 weeks resulted in significant improvements in clinical symptoms, disease activity, hs-TNFα, and Health Assessment Questionnaire scores in women with rheumatoid athritis❞
Quercetin and blood pressure
It works, if antihypertensive (i.e., blood pressure lowering) effect is what you want/need:
❝…significant effect of quercetin supplementation in the reduction of BP, possibly limited to, or greater with dosages of >500 mg/day.❞
~ Dr. Maria-Corina Serban et al.
Quercetin and diabetes
We’re less confident to claim this one, because (almost?) all of the research so far as been in non-human animals or in vitro. As one team of researchers put it:
❝Despite the wealth of in animal research results suggesting the anti-diabetic and its complications potential of quercetin, its efficacy in diabetic human subjects is yet to be explored❞
Quercetin and neuroprotection
Research has been done into the effect of quercetin on the risk of Parkinson’s disease and Alzheimer’s disease, and they found…
❝The data indicate that quercetin is the major neuroprotective component in coffee against Parkinson’s disease and Alzheimer’s disease❞
Read more: Quercetin, not caffeine, is a major neuroprotective component in coffee
Summary
Quercetin is a wonderful flavonoid that can be enjoyed as part of one’s diet and by supplementation. In terms of its popular health claims:
- It has been found very effective for lowering inflammation
- It has a moderate blood pressure lowering effect
- It may have anti-diabetes potential, but the science is young
- It has been found to have a potent neuroprotective effect
Want to get some?
We don’t sell it, but for your convenience, here’s an example product on Amazon
Enjoy!
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Entertaining Harissa Traybake
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No, it’s not entertaining in the sense that it will tell you jokes or perhaps dance for you, but rather: it can be easily prepared in advance, kept in the fridge for up to 3 days, and reheated when needed as part of a spread when entertaining, leaving you more time to spend with your houseguests.
Aside from its convenience, it is of course nutritious and delicious:
You will need
- 14 oz cherry tomatoes
- 2 cans chickpeas, drained and rinsed (or 2 cups cooked chickpeas, drained and rinsed)
- 2 eggplants, cut into ¾” cubes
- 1 red onion, roughly chopped
- 1 bulb garlic
- 2 tbsp extra virgin olive oil
- 1 tbsp harissa paste
- 1 tbsp ras el-hanout
- 1 tsp MSG or 2 tsp low-sodium salt
Method
(we suggest you read everything at least once before doing anything)
1) Preheat the oven to 400℉ / 200℃
2) Mix the onion, eggplant, and garlic (whole cloves; just peel them and put them in) with the olive oil in a mixing bowl, ensuring everything is coated evenly.
3) Add in 1 tbsp of the harissa paste, 1 tbsp of the ras-el hanout, and half of the MSG/salt, and again mix thoroughly to coat evenly.
4) Bake in the oven, in a walled tray, for about 30 minutes, giving things a stir/jiggle halfway through to ensure they cook evenly.
5) Add the cherry tomatoes to the tray, and return to the oven for another 10 minutes.
6) Mix the chickpeas with the other 1 tbsp of the harissa paste, the other 1 tbsp of the ras-el hanout, and the other half of the MSG/salt, and add to the tray, returning it to the oven for a final 10 minutes.
7) Serve hot, or set aside for later, refrigerating once cool enough to do so. When you do serve, we recommend serving with a yogurt, cucumber, and mint dip, and perhaps flatbreads (you can use our Healthy Homemade Flatbreads recipe):
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Eat More (Of This) For Lower Blood Pressure
- Lycopene’s Benefits For The Gut, Heart, Brain, & More
- Our Top 5 Spices: How Much Is Enough For Benefits?
Take care!
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How To Avoid Age-Related Macular Degeneration
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Avoiding Age-Related Macular Degeneration
Eye problems can strike at any age, but as we get older, it becomes a lot more likely. In particular, age-related macular degeneration is, as the name suggests, an age-bound disease.
Is there no escaping it, then?
The risk factors for age-related macular degeneration are as follows:
- Being over the age of 55 (can’t do much about this one)
- Being over the age of 65 (risk climbs sharply now)
- Having a genetic predisposition (can’t do much about this one)
- Having high cholesterol (this one we can tackle)
- Having cardiovascular disease (this one we can tackle)
- Smoking (so, just don’t)
Genes predispose; they don’t predetermine. Or to put it another way: genes load the gun, but lifestyle pulls the trigger.
Preventative interventions against age-related macular degeneration
Prevention is better than a cure in general, and this especially goes for things like age-related macular degeneration, because the most common form of it has no known cure.
So first, look after your heart (because your heart feeds your eyes).
See also: The Mediterranean Diet
Next, eat to feed your eyes specifically. There’s a lot of research to show that lutein helps avoid age-related diseases in the eyes and the rest of the brain, too:
See also: Brain Food? The Eyes Have It
Do supplements help?
They can! There was a multiple-part landmark study by the National Eye Institute, a formula was developed that reduced the 5-year risk of intermediate disease progressing to late disease by 25–30%. It also reduced the risk of vision loss by 19%.
You can read about both parts of the study here:
Age-Related Eye Disease Studies (AREDS/AREDS2): major findings
As you can see, an improvement was made between the initial study and the second one, by replacing beta-carotene with lutein and zeaxanthin.
The AREDS2 formula contains:
- 500 mg vitamin C
- 180 mg vitamin E
- 80 mg zinc
- 10 mg lutein
- 2 mg copper
You can learn more about these supplements, and where to get them, here on the NEI’s corner of the official NIH website:
AREDS 2 Supplements for Age-Related Macular Degeneration
Take care of yourself!
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Related Posts
Coca-Cola vs Diet Coke – Which is Healthier?
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Our Verdict
When comparing Coca-Cola to Diet Coke, we picked the Diet Coke.
Why?
While the Diet Coke is bad, the Coca-Cola has mostly the same problems plus sugar.
The sugar in a can of Coca-Cola is 39g high-fructose corn syrup (the worst kind of sugar yet known to humanity), and of course it’s being delivered in liquid form (the most bioavailable way to get, which in this case, is bad).
To put those 39g into perspective, the daily recommended amount of sugar is 36g for men or 25g for women, according to the AHA.
The sweetener in Diet Coke is aspartame, which has had a lot of health risk accusations made against it, most of which have not stood up to scrutiny, and the main risk it does have is “it mimics sugar too well” and it can increase cravings for sweetness, and therefore higher consumption of sugars in other products. For this reason, the World Health Organization has recommended to simply reduce sugar intake without looking to artificial sweeteners to help.
Nevertheless, aspartame has been found safe (in moderate doses; the upper tolerance level would equate to more than 20 cans of diet coke per day) by food safety agencies ranging from the FDA to the EFSA, based on a large body of science.
Other problems that Diet Coke has are present in Coca-Cola too, such as its acidic nature (bad for tooth enamel) and gassy nature (messes with leptin/ghrelin balance).
Summary: the Diet Coke is relatively less unhealthy, but is still bad in numerous ways, and remains best avoided.
Read more:
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Is “Extra Virgin” Worth It?
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It’s Q&A Day at 10almonds!
Have a question or a request? We love to hear from you!
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
❝I was wondering, is the health difference important between extra virgin olive oil and regular?❞
Assuming that by “regular” you mean “virgin and still sold as a food product”, then there are health differences, but they’re not huge. Or at least: not nearly so big as the differences between those and other oils.
Virgin olive oil (sometimes simply sold as “olive oil”, with no claims of virginity) has been extracted by the same means as extra virgin olive oil, that is to say: purely mechanical.
The difference is that extra virgin olive oil comes from the first pressing*, so the free fatty acid content is slightly lower (later checked and validated and having to score under a 0.8% limit for “extra virgin” instead of 2% limit for a mere “virgin”).
*Fun fact: in Arabic, extra virgin is called “البكر الممتاز“, literally “the amazing first-born”, because of this feature!
It’s also slightly higher in mono-unsaturated fatty acids, which is a commensurately slight health improvement.
It’s very slightly lower in saturated fats, which is an especially slight health improvement, as the saturated fats in olive oil are amongst the healthiest saturated fats one can consume.
On which fats are which:
The truth about fats: the good, the bad, and the in-between
And our own previous discussion of saturated fats in particular:
Can Saturated Fats Be Healthy?
Probably the strongest extra health-benefit of extra virgin is that while that first pressing squeezes out oil with the lowest free fatty acid content, it squeezes out oil with the highest polyphenol content, along with other phytonutrients:
If you enjoy olive oil, then springing for extra virgin is worth it if that’s not financially onerous, both for health reasons and taste.
However, if mere “virgin” is what’s available, it’s no big deal to have that instead; it still has a very similar nutritional profile, and most of the same benefits.
Don’t settle for less than “virgin”, though.
While some virgin olive oils aren’t marked as such, if it says “refined” or “blended”, then skip it. These will have been extracted by chemical means and/or blended with completely different oils (e.g. canola, which has a very different nutritional profile), and sometimes with a dash of virgin or extra virgin, for the taste and/or so that they can claim in big writing on the label something like:
a blend of
EXTRA VIRGIN OLIVE OIL
and other oils…despite having only a tiny amount of extra virgin olive oil in it.
Different places have different regulations about what labels can claim.
The main countries that produce olives (and the EU, which contains and/or directly trades with those) have this set of rules:
International Olive Council: Designations and definitions of Olive Oils
…which must be abided by or marketers face heavy fines and sanctions.
In the US, the USDA has its own set of rules based on the above:
USDA | Olive Oil and Olive-Pomace Oil Grades and Standards
…which are voluntary (not protected by law), and marketers can pay to have their goods certified if they want.
So if you’re in the US, look for the USDA certification or it really could be:
- What the USDA calls “US virgin olive oil not fit for human consumption”, which in the IOC is called “lamp oil”*
- crude pomace-oil (oil made from the last bit of olive paste and then chemically treated)
- canola oil with a dash of olive oil
- anything yellow and oily, really
*This technically is virgin olive oil insofar as it was mechanically extracted, but with defects that prevent it from being sold as such, such as having a free fatty acid content above the cut-off, or just a bad taste/smell, or some sort of contamination.
See also: Potential Health Benefits of Olive Oil and Plant Polyphenols
(the above paper has a handy infographic if you scroll down just a little)
Where can I get some?
Your local supermarket, probably, but if you’d like to get some online, here’s an example product on Amazon for your convenience
Enjoy!
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The Science Of Sounds
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We Think You Might Like The Sound Of This…
We’ve written before about the benefits of mindfulness meditation, and how to do it.
We also reviewed a great book on a related topic:
This is Your Brain On Music – by Dr. Daniel Levitin
(yes, that’s the same neuroscientist that we featured as an expert talking about The Five Keys of Aging Healthily)
But what happens when we combine the two?
Mantra meditation & music
Most scientific studies that have been undertaken with regard to meditation tend to focus on mindfulness meditation. It’s easy, effective, and (which makes a difference when it comes to publication bias) is a very safe bet when it comes to funding.
However, today we’re going to look at mantra meditation, which has a lot in common, neurologically speaking, with music. Indeed, when the two were compared separately in a randomized control trial:
❝Daily mantra meditation or classical music listening may be beneficial for cognitive outcomes and quality of life of breast cancer survivors with cancer-related cognitive impairment.
The cognitive benefits appear to be sustained beyond the initial intervention period.❞
One possible reason for some of the similar benefits is the vagus nerve—whether intoning a mantra, or humming along to music, the vibrations can stimulate the vagus nerve, which in turn activates the parasympathetic nervous system, resulting in body-wide relaxation:
The Vagus Nerve (And How You Can Make Use Of It)
How effective is mantra meditation?
According to a large recent narrative review, it depends on your goal:
❝Based on the studies in the four important areas presented, there is no doubt of a strong connection between mantra meditation and human health.
Strong evidence has been found that practicing mantra meditation is effective in relieving stress and in coping with hypertension.
For the other two areas: anxiety and immunity, the evidence is inconclusive or not strong enough to firmly support the claim that the mantra meditation can be used to reduce anxiety or to improve immunity. ❞
Read in full: Scientific Evidence of Health Benefits by Practicing Mantra Meditation: Narrative Review
this is a very interesting read if you do have the time!
How do I practice mantra meditation?
The definition is broad, but the critical criteria are:
- You meditate…
- …using a mantra
Lest that seem flippant: those really are the two key points!
Meditation comes in various forms, and mantra meditation is a form of focussed meditation. While some focussed meditation forms may use a candle or some other focal point, in mantra meditation, the mantra itself provides the focus.
You may be wondering: what should the mantra be?
Classic and well-tested mantras include such simple things as the monosyllabic Sanskrit “Om” or “Ham”. We’re a health science newsletter, so we’ll leave esoteric meanings to other publications as they are beyond our scope, but we will say that these result, most naturally, in the humming sound that we mentioned earlier stimulates the vagus nerve.
But that’s not the only way. Practitioners of religions that have repetitive prayer systems (e.g. anything that uses prayer beads, for example) also provide the basis of focused meditation, using a mantra (in this case, usually a very short oft-repeated prayer phrase).
How long is needed for benefits?
Most studies into mantra meditation have used timed sessions of 15–30 minutes, with 20 minutes being a commonly-used session length, once per day. However…
- Vagus nerve benefits should appear a lot more quickly than that (under 5 minutes) in the case of mantras that cause that vibration we mentioned.
- Repetitive spoken prayers (or similar repeated short phrases, for the irreligious) will generally effect relaxation in whatever period of time it takes for your brain to be fully focused on what you are doing now, instead of what you were thinking about before. If using counting beads, then you probably already know what number works for you.
(again, as a health science publication, we cannot comment on any otherworldly benefits, but the worldly benefits seem reason enough to consider these practices for their potential therapeutic effects)
10almonds tip: for any meditative practice that you want to take approximately a given period of time, we recommend investing in a nice sand timer like this one, as this will not result in a jarring alarm going off!
Like to jazz things up a little?
Enjoy: Meditation That You’ll Actually Enjoy ← Meditation games!
Prefer to keep things to the basics?
Enjoy: No Frills, Evidence-Based Mindfulness ← The simplest scientific approach
Take care!
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Learn to Age Gracefully
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