Limitless Expanded Edition – by Jim Kwik
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This is a little flashier in presentation than we usually go for here, but the content is actually very good. Indeed, we’ve featured Jim Kwik before, with different, but also good content—in that case, physical exercises that strengthen the brain.
This time, Kwik (interspersed with motivational speeches that you may or may not benefit from, but they are there) offers a step-by-step course in improving various metrics of cognitive ability. His methods were produced by trial and error, and now have been refined and enjoyed by man. If it sounds like a sales gimmick, it is a bit, but the good news is that everything you need to benefit is in the book; it’s not about upselling to a course or “advanced” books or whatnot.
The style is enthusiastically conversational, and instructions when given (which is often) are direct and clear.
Bottom line: one of the most critical abilities a brain can have is the ability to improve itself, so whatever level your various cognitive abilities are at right now, if you apply this book, you will almost certainly improve in one or more areas, which will make it worth the price of the book.
Click here to check out Limitless, and find out what you can do!
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Pulse – by Jenny Chandler
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Beans, chickpeas, and lentils are well-established super-healthy foods, but they’re often not a lot of people’s favorite. And why? Usually because of unhappy associations with boring dishes that can barely be called dishes.
This book raises the bar for pulses of various kinds, and not only provides recipes (180 of them) but also guidelines on principles, tips and tricks, what works and what doesn’t, what makes things better or worse, perfect partners, sprouting, and more.
The recipes themselves are not all vegan, nor even all vegetarian, but the beans are the star throughout. For those who are vegan or vegetarian, it’s easy to make substitutions, not least of all because the author is generous with “try this instead of that” and “consider also” suggestions, to help us tailor each dish to our personal preferences, and even the desired vibe of a given meal.
The dishes are neither overly simplistic (it’s not a student survival cookbook, by any means) nor overly complicated; rather, enough is done to make each dish invitingly tasty, and nothing extraneous or pretentious is added for the sake of being fancy. This is about delicious home cooking, nothing more nor less.
If the book has a weakness, it’s that visual learners will feel the absence of pictures for many recipes. But, the text is clear, the instructions are easy to follow, and a photo for each dish would probably have doubled the cost of the book, at least, while halving the number of recipes.
Bottom line: if you’d like to get more beans and other pulses in your diet, but are unsure how to make it exciting, this is an excellent option.
Click here to check out Pulse, and expand your kitchen repertoire!
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Brain Power – by Michael Gelb & Kelly Howell
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What’s most important when it comes to brain health? Is it the right diet? Supplements? Brain-training? Attitude? Sleep? Physical exercise? Social connections? Something else?
This book covers a lot of bases, including all of the above and more. The authors are not scientists by training and this is not a book of science, so much as a book of aggregated science-based advice from other sources. The authors did consult with many scientists, and their input is shown throughout.
In the category of criticism, nothing here goes very deeply into the science, and there’s also nothing you wouldn’t find we’ve previously written about in a 10almonds article somewhere. But all the same, it’s good to have a wide variety of brain-healthy advices all in one place.
Bottom line: if you’re looking for a one-stop-shop “look after your brain as you age” guide, then this is a good one.
Click here to check out Brain Power, and improve your mind as you age!
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The Snooze-Button Controversy
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To Snooze Or Not To Snooze? (Science Has Answers)
This is Dr. Jennifer Kanaan. She’s a medical doctor with a focus on pulmonary critical care, sleep disorders, and sleep medicine.
What does she want to tell us?
She wants us to be wary of the many news articles that have jumped on a certain recent sleep study, such as:
- Is hitting the snooze button really a bad idea? Study sheds light on the impact of morning alarms on sleep and cognition
- Hitting Snooze May Help You Feel Less Sleepy and More Alert, Research Says
- Is it okay to press the snooze button?
- Hitting Snooze May Help You Feel Less Sleepy and More Alert, Research Says
- Hitting the snooze button on your alarm doesn’t make you more tired
For the curious, here is the paper itself, by Dr. Tina Sundelin et al. It’s actually two studies, by the way, but one paper:
The authors of this study concluded:
❝There were no clear effects of snoozing on the cortisol awakening response, morning sleepiness, mood, or overnight sleep architecture.
A brief snooze period may thus help alleviate sleep inertia, without substantially disturbing sleep, for late chronotypes and those with morning drowsiness.❞
Notably, people tend to snooze because an alarm clock will, if not “smart” about it, wake us up mid sleep-cycle more often than not, and that will produce a short “sleep hangover”. By snoozing, we are basically re-rolling the dice on being woken up between sleep cycles, and thus feeling more refreshed.
What’s Dr. Kanaan’s counterpoint?
Dr. Kanaan says:
❝If you’re coming in and out of sleep for 30 minutes, after the alarm goes off the first time, you’re costing yourself 30 minutes of uninterrupted, quality, restorative sleep. This study doesn’t change that fact.❞
She advises that rather than snoozing, we should prioritize getting good sleep in the first place, and once we do wake up, mid sleep-cycle or not, get sunlight. That way, our brain will start promptly scrubbing melatonin and producing the appropriate wakefulness hormones instead. That means serotonin, and also a spike of cortisol.
Remember: cortisol is only bad when it’s chronically elevated. It’s fine, and even beneficial, to have a short spike of cortisol. We make it for a reason!
If you’d like to hear more from Dr. Kanaan, you might like this interview with her at the University of Connecticut:
Want the best of both worlds?
A great option to avoid getting woken in the middle of a sleep cycle, and also not needing to hit snooze, is a sunrise alarm clock. Specifics of these devices vary, but for example, the kind this writer has starts gently glowing an hour before the set alarm time,and gradually gets brighter and lighter over the course of the hour.
We don’t sell them, but here’s an example sunrise alarm clock on Amazon, for your convenience
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Is Your Gut Leading You Into Osteoporosis?
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Bacterioides Vulgatus & Bone Health
We’ve talked before about the importance of gut health:
And we’ve shared quite some information and resources on osteoporosis:
- The Bare-bones Truth: Osteoporosis Mythbusting
- Osteoporosis Exercises (What To Do, And What To Avoid)
- Vit D + Calcium: Too Much Of A Good Thing?
- Collagen For Bones: We Are Such Stuff As Fish Are Made Of
- Which Osteoporosis Medication, If Any, Is Right For You?
How the two are connected
A recent study looked at Bacterioides vulgatus, a very common gut bacterium, and found that it suppresses the gut’s production of valeric acid, a short-chain fatty acid that enhances bone density:
❝For the study, researchers analyzed the gut bacteria of more than 500 peri- and post-menopausal women in China and further confirmed the link between B. vulgatus and a loss of bone density in a smaller cohort of non-Hispanic White women in the United States.❞
Pop-sci source: Does gut bacteria cause osteoporosis?
The study didn’t stop there, though. They proceeded to test, with a rodent model, the effect of giving them either:
- more B. vulgatus, or
- valeric acid supplements
The results of this were as expected:
- Those who were given more B. vulgatus got worse bone microstructure
- Those who were given valeric acid supplements got stronger bones overall
Study source: Gut microbiota impacts bone via Bacteroides vulgatus-valeric acid-related pathways
Where can I get valeric acid?
We couldn’t find a handy supplement for this, but it is in many foods, including avocados, blueberries, cocoa beans, and an assortment of birds.
Click here to see a more extensive food list (you’ll need to scroll down a little)
Bonus: if you happen to be on HRT in the form of Estradiol valerate (e.g: Progynova), then that “valerate” is an ester of valeric acid, that your body can metabolize and use as such.
Enjoy!
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Synergistic Brain-Training
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Let The Games Begin (But It Matters What Kind)
Exercise is good for brain health; we’ve written about this before, for example:
How To Reduce Your Alzheimer’s Risk ← there are many advices here, but exercise, especially cardiovascular exercise in this case, is an important item on the list!
Today it’s Psychology Sunday though, and we’re going to talk about looking after brain health by means of brain-training, via games.
“Brain-training” gets a lot of hype and flak:
- Hype: do sudoku every day and soon you will have an IQ of 200 and still have a sharp wit at the age of 120
- Flak: brain-training is usually training only one kind of cognitive function, with limited transferability to the rest of life
The reality is somewhere between the two. Brain training really does improve not just outwardly measurable cognitive function, but also internally measurable improvements visible on brain scans, for example:
- Cognitive training modified age-related brain changes in older adults with subjective memory decline
- Functional brain changes associated with cognitive training in healthy older adults: A preliminary ALE meta-analysis
But what about the transferability?
Let us play
This is where game-based brain-training comes in. And, the more complex the game, the better the benefits, because there is more chance of applicability to life, e.g:
- Sudoku: very limited applicability
- Crosswords: language faculties
- Chess: spatial reasoning, critical path analysis, planning, memory, focus (also unlike the previous two, chess tends to be social for most people, and also involve a lot of reading, if one is keen)
- Computer games: wildly varied depending on the game. While an arcade-style “shoot-em-up” may do little for the brain, there is a lot of potential for a lot of much more relevant brain-training in other kinds of games: it could be planning, problem-solving, social dynamics, economics, things that mirror the day-to-day challenges of running a household, even, or a business.
- It’s not that the skills are useful, by the way. Playing “Stardew Valley” will not qualify you to run a real farm, nor will playing “Civilization” qualify you to run a country. But the brain functions used and trained? Those are important.
It becomes easily explicable, then, why these two research reviews with very similar titles got very different results:
- A Game a Day Keeps Cognitive Decline Away? A Systematic Review and Meta-Analysis of Commercially-Available Brain Training Programs in Healthy and Cognitively Impaired Older Adults
- Game-based brain training for improving cognitive function in community-dwelling older adults: A systematic review and meta-regression
The first review found that game-based brain-training had negligible actual use. The “games” they looked at? BrainGymmer, BrainHQ, CogMed, CogniFit, Dakim, Lumosity, and MyBrainTrainer. In other words, made-for-purpose brain-trainers, not actual computer games per se.
The second reviewfound that game-based training was very beneficial. The games they looked at? They didn’t name them, but based on the descriptions, they were actual multiplayer online turn-based computer games, not made-for-purpose brain-trainers.
To summarize the above in few words: multiplayer online turn-based computer games outperform made-for-purpose brain-trainers for cognitive improvement.
Bringing synergy
However, before you order that expensive gaming-chair for marathon gaming sessions (research suggests a tail-off in usefulness after about an hour of continuous gaming per session, by the way), be aware that cognitive training and (physical) exercise training combined, performed close in time to each other or simultaneously, perform better than the sum of either alone:
See also:
❝Simultaneous training was the most efficacious approach for cognition, followed by sequential combinations and cognitive training alone, and significantly better than physical exercise.
Our findings suggest that simultaneously and sequentially combined interventions are efficacious for promoting cognitive alongside physical health in older adults, and therefore should be preferred over implementation of single-domain training❞
~ Dr. Hanna Malmberg Gavelin et al.
Take care!
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Citicoline: Better Than Dietary Choline?
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Citicoline: Better Than Dietary Choline?
Citicoline, also known as cytidine diphosphate-choline (or CDP-Choline, to its friends, or cytidine 5′-diphosphocholine if it wants to get fancy) is a dietary supplement that the stomach can metabolize easily for all the brain’s choline needs. What are those needs?
Choline is an essential nutrient. We technically can synthesize it, but only in minute amounts, far less than we need. Choline is a key part of the neurotransmitter acetylcholine, as well as having other functions in other parts of the body.
As for citicoline specifically… it appears to do the job better than dietary sources of choline:
❝Intriguing data, showing that on a molar mass basis citicoline is significantly less toxic than choline, are also analyzed.
It is hypothesized that, compared to choline moiety in other dietary sources such as phosphatidylcholine, choline in citicoline is less prone to conversion to trimethylamine (TMA) and its putative atherogenic N-oxide (TMAO).
Epidemiological studies have suggested that choline supplementation may improve cognitive performance, and for this application citicoline may be safer and more efficacious.❞
Source: Citicoline: A Superior Form of Choline?
Great! What does it do?
What doesn’t it do? When it comes to cognitive function, anyway, citicoline covers a lot of bases.
Short version: it improves just about every way a brain’s healthy functions can be clinically measured. From cognitive improvements in all manner of tests (far beyond just “improves memory” etc; also focus, alertness, verbal fluency, logic, computation, and more), to purely neurological things like curing tinnitus (!), alleviating mobility disorders, and undoing alcohol-related damage.
One of the reasons it’s so wide in its applications, is that it has a knock-on effect to other systems in the brain, including the dopaminergic system.
Long version: Citicoline: pharmacological and clinical review, 2022 update
(if you don’t want to sit down for a long read, we recommend skimming to the charts and figures, which are very elucidating even alone)
Spotlight study in memory
For a quick-reading example of how it helps memory specifically:
Keeping dementia at bay
For many older people looking to improve memory, it’s less a matter of wanting to perform impressive feats of memory, and more a matter of wanting to keep a sharp memory throughout our later years.
Dr. Maria Bonvicini et al. looked into this:
❝We selected seven studies including patients with mild cognitive impairment, Alzheimer’s disease or post-stroke dementia
All the studies showed a positive effect of citicoline on cognitive functions. Six studies could be included in the meta-analysis.
Overall, citicoline improved cognitive status, with pooled standardized mean differences ranging from 0.56 (95% CI: 0.37-0.75) to 1.57 (95% CI: 0.77-2.37) in different sensitivity analyses❞
The researchers concluded “yes”, and yet, called for more studies, and of higher quality. In many such studies, the heterogeneity of the subjects (often, residents of nursing homes) can be as much a problem (unclear whether the results will be applicable to other people in different situations) as it is a strength (fewer confounding variables).
Another team looked at 47 pre-existing reviews, and concluded:
❝The review found that citicoline has been proven to be a useful compound in preventing dementia progression.
Citicoline has a wide range of effects and could be an essential substance in the treatment of many neurological diseases.
Its positive impact on learning and cognitive functions among the healthy population is also worth noting.❞
Source: Application of Citicoline in Neurological Disorders: A Systematic Review
The dopamine bonus
Remember how we said that citicoline has a knock-on effect on other systems, including the dopaminergic system? This means that it’s been studied (and found meritorious) for alleviating symptoms of Parkinson’s disease:
❝Patients with Parkinson’s disease who were taking citicoline had significant improvement in rigidity, akinesia, tremor, handwriting, and speech.
Citicoline allowed effective reduction of levodopa by up to 50%.
Significant improvement in cognitive status evaluation was also noted with citicoline adjunctive therapy.❞
Source: Citicoline as Adjuvant Therapy in Parkinson’s Disease: A Systematic Review
Where to get it?
We don’t sell it, but here’s an example product on Amazon, for your convenience
Enjoy!
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