Brain Food? The Eyes Have It!
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
Brain Food? The Eyes Have It!
This is Dr. Michael Greger, M.D. FACLM, of “Dr. Greger’s Daily Dozen” and “How Not To Die” fame, and he wants us to protect our brains (and while we’re at it, our eyesight).
And the secret is…
Lutein.
This is a carotenoid, which is super important for the eyes and brain. Not to be confused with carrots, which despite the name are usually not a good source of carotenoids!
They do however contain lots of beta-carotene, a form of vitamin A, but that (and the famous WW2-era myth born of deliberate disinformation by the British government) isn’t what we’re covering today.
We say “eyes and brain” but really, the eyes are just an extension of the brain in any case.
Pedantry aside, what Dr. Greger wants you to know about lutein is how important it is for the protection of your brain/eyes, both against cognitive decline and against age-related macular degeneration (the most common cause of eyesight loss in old age).
Important take-away info:
- Two things that hasten brain aging are inflammation and oxidative stress. Antioxidant and anti-inflammatory foods mitigate those.
- Researchers investigated eight different dietary antioxidants, including vitamins A and E. Only lutein was “significantly related to better cognition”.
- The macula in the middle of our retina is packed with lutein, and levels in the retina correspond to levels in the rest of our brain.
- Alzheimer’s patients have significantly less lutein in their eyes and in their blood, and a higher occurrence of macular degeneration.
- Dark green leafy vegetables are lutein superstars. A half cup of kale has 50 times more lutein than an egg.
Want to know more about the Dr. Greger’s Daily Dozen approach to health?
See the Website / Get the App (Android & iOS) / Get the Science Book / Get the Cookbook!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Recommended
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
Fast Like A Girl – by Dr. Mindy Pelz
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
A lot of information out there when it comes to intermittent fasting is very much centered on men in the 25–35 years age range. What about the rest of us?
Our physiological needs are not the same, and it’d be foolhardy to ignore that. But what things do still stand the same, and what things would benefit from a different approach in our cases?
Dr. Pelz has our back with this book packed with information based on the best science currently out there. She gives a general overview of fasting with full consideration to the fact that we the reader may well be female or over a certain age or both. In addition, the book offers:
- Metabolic switching (the “missing key to weight loss”)
- Building a fasting lifestyle (that works with your actual life, not just on paper)
- How to time fasting according to your menstrual cycle (if you don’t have a cycle, she has you covered too)
- How to break a fast—properly (and many other hacks/tips/tricks to make fasting so much easier)
Bottom line: if you want to do intermittent fasting and want to work with rather than against your body, then this book is a fine option.
Share This Post
Beat Food Addictions!
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
When It’s More Than “Just” Cravings
This is Dr. Nicole Avena. She’s a research neuroscientist who also teaches at Mount Sinai School of Medicine, as well as at Princeton. She’s done a lot of groundbreaking research in the field of nutrition, diet, and addition, with a special focus on women’s health and sugar intake specifically.
What does she want us to know?
Firstly, that food addictions are real addictions.
We know it can sound silly, like the famous line from Mad Max:
❝Do not, my friends, become addicted to water. It will take hold of you and you will resent its absence!❞
As an aside, it is actually possible to become addicted to water; if one drinks it excessively (we are talking gallons every day) it does change the structure of the brain (no surprise; the brain is not supposed to have that much water!) causing structural damage that then results in dependency, and headaches upon withdrawal. It’s called psychogenic polydipsia:
But back onto today’s more specific topic, and by a different mechanism of addiction…
Food addictions are dopaminergic addictions (as is cocaine)
If you are addicted to a certain food (often sugar, but other refined carbs such as potato products, and also especially refined flour products, are also potential addictive substances), then when you think about the food in question, your brain lights up with more dopamine than it should, and you are strongly motivated to seek and consume the substance in question.
Remember, dopamine functions by expectation, not by result. So until your brain’s dopamine-gremlin is sated, it will keep flooding you with motivational dopamine; that’s why the first bite tastes best, then you wolf down the rest before your brain can change its mind, and afterwards you may be left thinking/feeling “was that worth it?”.
Much like with other addictions (especially alcohol), shame and regret often feature strongly afterwards, even accompanied by notions of “never again”.
But, binge-eating is as difficult to escape as binge-drinking.
You can break free, but you will probably have to take it seriously
Dr. Avena recommends treating a food addiction like any other addiction, which means:
- Know why you want to quit (make a list of the reasons, and this will help you stay on track later!)
- Make a conscious decision to genuinely quit
- Learn about the nature of the specific addiction (know thy enemy!)
- Choose a strategy (e.g. wean off vs cold turkey, and decide what replacements, if any, you will use)
- Get support (especially from those around you, and/but the support of others facing, or who have successfully faced, the same challenge is very helpful too)
- Keep track of your success (build and maintain a streak!)
- Lean into how you will better enjoy life without addiction to the substance (it never really made you happy anyway, so enjoy your newfound freedom and good health!)
Want more from Dr. Avena?
You can check out her column at Psychology Today here:
Psychology Today | Food Junkie ← it has a lot of posts about sugar addiction in particular, and gives a lot of information and practical advice
You can also read her book, which could be a great help if you are thinking of quitting a sugar addiction:
Sugarless: A 7-Step Plan to Uncover Hidden Sugars, Curb Your Cravings, and Conquer Your Addiction
Enjoy!
Share This Post
Synergistic Brain-Training
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
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!
Share This Post
Related Posts
‘It’s okay to poo at work’: new health campaign highlights a common source of anxiety
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
For most people, the daily or near-daily ritual of having a bowel motion is not something we give a great deal of thought to. But for some people, the need to do a “number two” in a public toilet or at work can be beset with significant stress and anxiety.
In recognition of the discomfort people may feel around passing a bowel motion at work, the Queensland Department of Health recently launched a social media campaign with the message “It’s okay to poo at work”.
The campaign has gained significant traction on Instagram and Facebook. It has been praised by health and marketing experts for its humorous handling of a taboo topic.
A colourful Instagram post is accompanied by a caption warning of the health risks of “holding it in”, including haemorrhoids and other gastrointestinal problems. The caption also notes:
If you find it extremely difficult to poo around other people, you might have parcopresis.
What is parcopresis?
Parcopresis, sometimes called “shy bowel”, occurs when people experience a difficulty or inability to poo in public toilets due to fear of perceived scrutiny by others.
People with parcopresis may find it difficult to go to the toilet in public places such as shopping centres, restaurants, at work or at school, or even at home when friends or family are around.
They may fear being judged by others about unpleasant smells or sounds when they have a bowel motion, or how long they take to go, for example.
Living with a gastrointestinal condition (at least four in ten Australians do) may contribute to parcopresis due to anxiety about the need to use a toilet frequently, and perceived judgment from others when doing so. Other factors, such as past negative experiences or accessibility challenges, may also play a role.
For sufferers, anxiety can present in the form of a faster heart rate, rapid breathing, sweating, muscle tension, blushing, nausea, trembling, or a combination of these symptoms. They may experience ongoing worry about situations where they may need to use a public toilet.
Living with parcopresis can affect multiple domains of life and quality of life overall. For example, sufferers may have difficulties relating to employment, relationships and social life. They might avoid travelling or attending certain events because of their symptoms.
How common is parcopresis?
We don’t really know how common parcopresis is, partly due to the difficulty of evaluating this behaviour. It’s not necessarily easy or appropriate to follow people around to track whether they use or avoid public toilets (and their reasons if they do). Also, observing individual bathroom activities may alter the person’s behaviour.
I conducted a study to try to better understand how common parcopresis is. The study involved 714 university students. I asked participants to respond to a series of vignettes, or scenarios.
In each vignette participants were advised they were at a local shopping centre and they needed to have a bowel motion. In the vignettes, the bathrooms (which had been recently cleaned) had configurations of either two or three toilet stalls. Each vignette differed by the configuration of stalls available.
The rate of avoidance was just over 14% overall. But participants were more likely to avoid using the toilet when the other stalls were occupied.
Around 10% avoided going when all toilets were available. This rose to around 25% when only the middle of three toilets was available. Men were significantly less likely to avoid going than women across all vignettes.
For those who avoided the toilet, many either said they would go home to poo, use an available disabled toilet, or come back when the bathroom was empty.
Parcopresis at work
In occupational settings, the rates of anxiety about using shared bathrooms may well be higher for a few reasons.
For example, people may feel more self-conscious about their bodily functions being heard or noticed by colleagues, compared to strangers in a public toilet.
People may also experience guilt, shame and fear about being judged by colleagues or supervisors if they need to make extended or frequent visits to the bathroom. This may particularly apply to people with a gastrointestinal condition.
Reducing restroom anxiety
Using a public toilet can understandably cause some anxiety or be unpleasant. But for a small minority of people it can be a real problem, causing severe distress and affecting their ability to engage in activities of daily living.
If doing a poo in a toilet at work or another public setting causes you anxiety, be kind to yourself. A number of strategies might help:
- identify and challenge negative thoughts about using public toilets and remind yourself that using the bathroom is normal, and that most people are not paying attention to others in the toilets
- try to manage stress through relaxation techniques such as deep breathing and progressive muscle relaxation, which involves tensing and relaxing different muscles around the body
- engaging in gradual exposure can be helpful, which means visiting public toilets at different times and locations, so you can develop greater confidence in using them
- use grounding or distraction techniques while going to the toilet. These might include listening to music, watching something on your phone, or focusing on your breathing.
If you feel parcopresis is having a significant impact on your life, talk to your GP or a psychologist who can help identify appropriate approaches to treatment. This might include cognitive behavioural therapy.
Simon Robert Knowles, Associate Professor and Clinical Psychologist, Swinburne University of Technology
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
Screaming at Screens?
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
I Screen, You Screen, We All Screen For…?
Dr. Kathryn Birkenbach is a postdoctoral research fellow in the Department of Neuroscience at Columbia University, and Manager of Research at Early Medical in New York.
Kathryn has things to tell us about kids’ neurological development, and screen time spent with electronic devices including phones, tablets, computers, and TVs.
From the 1960s criticism of “the gogglebox” to the modern-day critiques of “iPad babies” as a watchword of parental neglect, there’s plenty people can say against screen time, but Dr. Birkenbach tells us the that the reality is more nuanced:
Context Is Key
On a positive note”: consistent exposure to age-appropriate educational material results in quicker language acquisition than media that’s purely for entertainment purposes, or not age-appropriate.
Contrary to popular belief, children do not in fact learn by osmosis!
Interaction Is Far More Valuable Than Inaction
Kathryn advises that while adults tend to quite easily grasp things from instructional videos, the same does not go for small children.
This means that a lot of educational programming can be beneficial to small children if and only if there is an adult with them to help translate the visual into the practical!
There’s a story that does the rounds on the Internet: a young boy wanted to train his puppy, but didn’t know how. He asked, and was told “search for puppy training on YouTube”. His parents came back later and found him with his iPad, earnestly showing the training videos to the puppy.
We can laugh at the child’s naïvety, knowing that’s not how it works and the puppy will not learn that way, so why make the same mistake in turn?
❝The phenomenon known as the “video deficit effect” can be overcome, when an on-screen guide interacts with the child or a parent is physically present and draws the child’s attention to relevant information.
In other words, interaction with others appears to enhance the perceived salience of on-screen information, unlocking a child’s ability to learn from a medium which would otherwise offer no real-world benefit.❞
Screens Can Supplement, But Can’t Replace, Live Learning & Play
Sci-fi may show us “education pods” in which children learn all they need to from their screen… but according to our most up-to-date science, Dr. Birkenbach says, that simply would not work at all.
Screen time without adult interactions will typically fail to provide small children any benefit.
There is one thing it’s good at, though… attracting and keeping attention.
Thus, even a mere background presence of a TV show in the room will tend to actively reduce the time a small child spends on other activities, including live learning and exploratory play.
The attention-grabbing abilities of TV shows don’t stop at children, though! Adult caregivers will also tend to engage in fewer interactions with their children… and the interactions will be shorter and of lower quality.
In Summary:
- Young children will tend not to learn from non-interactive screen time
- Interactive screen time, ideally with a caregiver, can be educational
- Interactive screen time, not with a carer, can be beneficial (but a weak substitute)
- Interactive screen time refers to shows such as Dora The Explorer, where Dora directly addresses the viewer and asks questions…But it’s reliant on the child caring to answer!
- It can also mean interactive educational apps, provided the child does consciously interact!
- Randomly pressing things is not conscious interaction! The key here is engaging with it intelligently and thoughtfully
- A screen will take a child’s time and attention away from non-screen things: that’s a genuine measurable loss to their development!
Absolute Bottom Line:
Screens can be of benefit to small children, if and only if the material is:
- Age-Appropriate
- Educational
- Interactive
If it’s missing one of those three, it’ll be of little to no benefit, and can even harm, as it reduces the time spent on more beneficial activities.
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:
Becoming a Supple Leopard – by Dr. Kelly Starrett and Glen Cordoza
10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.
We’ve previously reviewed Dr. Starrett’s other book, “Built To Move“, and now today we’ll review his more famous book!
Why is this one so famous? It’s popularly considered “the Bible of Cross-Fit”, even though it’s not at all marketed as such, and nor does it talk about Cross Fit directly. But: people who are interested in being fit, fast, strong, mobile, stable, and so forth, tend to invest in this book at some point if they are serious.
The book is big, heavy, and textbook-like. This isn’t a quick light read. This is a “study over the course of a year or more while doing your physiotherapy degree” book. And yet, it’s written for the widest audience, and as such, everything is explained from the ground up, so no prior knowledge is expected.
It does have pictures, which are clear and helpful, though the print version is better for this than the Kindle edition.
The subtitle of the book is no lie; it does indeed cover all those things, deeply and at length, for everything musculoskeletal.
Bottom line: this book will seriously improve your knowledge and understanding of all things body mechanics and related body maintenance. If you care to get/remain fit/strong/mobile/etc, this book is a fine cornerstone for such endeavors.
Click here to check out Becoming A Supple Leopard, and become a supple leopard!*
*Metaphorically. Furry metamorphosis is not a side-effect. Suppleness, however, is on offer. Yes, even for you, dear reader!
Don’t Forget…
Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!
Learn to Age Gracefully
Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: