Fatty Acids For The Eyes & Brain: The Good And The Bad
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.
Good For The Eyes; Good For The Brain
We’ve written before about omega-3 fatty acids, covering the basics and some lesser-known things:
What Omega-3 Fatty Acids Really Do For Us
…and while we discussed its well-established benefits against cognitive decline (which is to be expected, because omega-3 is good against inflammation, and a large part of age-related neurodegeneration is heavily related to neuroinflammation), there’s a part of the brain we didn’t talk about in that article: the eyes.
We did, however, talk in another article about supplements that benefit the eyes and [the rest of the] brain, and the important links between the two, to the point that an examination of the levels of lutein in the retina can inform clinicians about the levels of lutein in the brain as a whole, and strongly predict Alzheimer’s disease (because Alzheimer’s patients have significantly less lutein), here:
Now, let’s tie these two ideas together
In a recent (June 2024) meta-analysis of high-quality observational studies from the US and around the world, involving nearly a quarter of a million people over 40 (n=241,151), researchers found that a higher intake of omega-3 is significantly linked to a lower risk of macular degeneration.
To put it in numbers, the highest intake of omega-3s was associated with an 18% reduced risk of early stage macular degeneration.
They also looked at a breakdown of what kinds of omega-3, and found that taking a blend DHA and EPA worked best of all, although of people who only took one kind, DHA was the best “single type” option.
You can read the paper in full, here:
Association between fatty acid intake and age-related macular degeneration: a meta-analysis
A word about trans-fatty acids (TFAs)
It was another feature of the same study that, while looking at fatty acids in general, they also found that higher consumption of trans-fatty acids was associated with a higher risk of advanced age-related macular degeneration.
Specifically, the highest intake of TFAs was associated with a more than 2x increased risk.
There are two main dietary sources of trans-fatty acids:
- Processed foods that were made with TFAs; these have now been banned in a lot of places, but only quite recently, and the ban is on the processing, not the sale, so if you buy processed foods that contain ingredients that were processed before 2021 (not uncommon, given the long life of many processed foods), the chances of them having TFAs is higher.
- Most animal products. Most notably from mammals and their milk, so beef, pork, lamb, milk, cheese, and yes even yogurt. Poultry and fish technically do also contain TFAs in most cases, but the levels are much lower.
Back to the omega-3 fatty acids…
If you’re wondering where to get good quality omega-3, well, we listed some of the best dietary sources in our main omega-3 article (linked at the top of today’s).
However, if you want to supplement, here’s an example product on Amazon that’s high in DHA and EPA, following the science of what we shared today 😎
Take care!
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:
-
Hanging Exercises For Complete Beginners & Older Adults
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.
Hanging (not the kind with a gallows) is great for the heath, improving not just strength and mobility, but also—critically—looking after spinal health too. Amanda Raynor explains in this video how this exercise is accessible to anyone (unless you have no arms, in which case, sorry, this one is just not for you—though hanging by your legs will also give similar spinal benefits!).
Hanging out
Hanging can be done at home or at a park, with minimal equipment (a bar, a sturdy tree branch, etc).
Note: the greater the diameter of the bar, the more it will work your grip strength, and/but the harder it will be. So, it’s recommend to start with a narrow-diameter bar first.
Getting started:
- Start with a “dead hang”: grip the bar with hands shoulder-width apart, thumb wrapped around.
- Aim to hang without pulling up; build endurance gradually (10–30 seconds is fine at first).
- Work up to holding for 60 seconds in three sets as a fitness goal.
Progression:
- If unable to hang at all initially, use a chair or stool to support some body weight.
- Gradually reduce foot support to increase duration of free hanging.
- Start with 10 seconds, progressing by small increments (e.g: 15, 20, 25 seconds) until reaching 60 seconds.
Advanced variations:
- Move the body while hanging (e.g., circles, knee lifts).
- Experiment with different grips (overhand, underhand) for varied muscle engagement.
- Try scapular pulls or one-arm hangs for additional challenge and strength-building.
For more on all of this plus visual demonstrations, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like:
Take care!
Share This Post
-
Bold Beans – by Amelia Christie-Miller
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 all know beans are one of the most healthful foods around, but how to include more of them, without getting boring?
This book has the answer, giving 80 exciting recipes, divided into the following sections:
- Speedy beans
- Bean snacks & sharing plates
- Brothy beans
- Bean bowls
- Hearty salads
- Bean feasts
The recipes are obviously all bean-centric, though if you have a particular dietary restriction, watch out for the warning labels on some (e.g. meat, fish, dairy, gluten, etc), and make a substitution if appropriate.
The recipes themselves have a happily short introductory paragraph, followed by all you’d expect from a recipe book (ingredients, measurements, method, picture)
There’s also a reference section, to learn about different kinds of beans and bean-related culinary methods that can be applied per your preferences.
Bottom line: if you’d like to include more beans in your daily diet but are stuck for making them varied and interesting, this is the book for you!
Click here to check out Bold Beans, and get your pulse racing (in a good way!)
Share This Post
-
Are Brain Chips Safe?
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.
Ready For Cyborgization?
In yesterday’s newsletter, we asked you for your views on Brain-Computer Interfaces (BCIs), such as the Utah Array and Neuralink’s chips on/in brains that allow direct communication between brains and computers, so that (for example) a paralysed person can use a device to communicate, or manipulate a prosthetic limb or two.
We didn’t get as many votes as usual; it’s possible that yesterday’s newsletter ended up in a lot of spam filters due to repeated use of a word in “extra ______ olive oil” in its main feature!
However, of the answers we did get…
- About 54% said “It’s bad enough that our phones spy on us, without BCI monitoring our thoughts as well!”
- About 23% said “Sounds great in principle, but I don’t think we’re there yet safetywise”
- About 19% said “Sign me up for technological telepathy! I am ready for assimilation”
- One (1) person said “Electrode outside the skull are good; chips on the brain are bad”
But what does the science say?
We’re not there yet safetywise: True or False?
True, in our opinion, when it comes to the latest implants, anyway. While it’s very difficult to prove a negative (it could be that everything goes perfectly in human trials), “extraordinary claims require extraordinary evidence”, and so far this seems to be lacking.
The stage before human trials is usually animal trials, starting with small creatures and working up to non-human primates if appropriate, before finally humans.
- Good news: the latest hot-topic BCI device (Neuralink) was tested on animals!
- Bad news: to say it did not go well would be an understatement
The Gruesome Story of How Neuralink’s Monkeys Actually Died
The above is a Wired article, and we tend to go for more objective sources, however we chose this one because it links to very many objective sources, including an open letter from the Physicians’ Committee for Responsible Medicine, which basically confirms everything in the Wired article. There are lots of links to primary (medical and legal) sources, too.
Electrodes outside the skull are good; chips on/in the brain are bad: True or False?
True or False depending on how they’re done. The Utah Array (an older BCI implant, now 20 years old, though it’s been updated many times since) has had a good safety record, after being used by a few dozen people with paralysis to control devices:
How the Utah Array is advancing BCI science
The Utah Array works on the same general principle as Neuralink, but the mechanics of its implementation are very different:
- The Utah Array involves a tiny bundle of microelectrodes (held together by a rigid structure that looks a bit like a nanoscale hairbrush) put in place by a brain surgeon, and that’s that.
- The Neuralink has a dynamic web of electrodes, implanted by a little robot that acts like a tiny sewing machine to implant many polymer threads, each containing its own a bunch of electrodes.
In theory, the latter is much more advanced. In practice, so far, the former has a much better safety record.
I am right to be a little worried about giving companies access to my brain: True or False?
True or False, depending on the nature of your concern.
For privacy: current BCI devices have quite simple switches operated consciously by the user. So while technically any such device that then runs its data through Bluetooth or WiFi could be hacked, this risk is no greater than using a wireless mouse and/or keyboard, because it has access to about the same amount of information.
For safety: yes, probably there is cause to be worried. Likely the first waves of commercial users of any given BCI device will be severely disabled people who are more likely to waive their rights in the hope of a life-changing assistance device, and likely some of those will suffer if things go wrong.
Which on the one hand, is their gamble to make. And on the other hand, makes rushing to human trials, for companies that do that, a little more predatory.
Take care!
Share This Post
Related Posts
-
Does PRP Work For Hair Loss?
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.
Dr. Ankit Gupta takes us through the details of this hair loss remedy for androgenic alopecia.
The bald truth
Platelet-Rich Plasma (PRP) is a controversial treatment for androgenic hair loss.
What it involves: blood is drawn and separated using a centrifuge. PRP—including growth proteins and hormones—is extracted from the blood; about 30 ml of blood is needed to produce 5 ml of PRP. This is then injected directly into the scalp. As this can be painful, local anaesthetic is sometimes used first. This usually involves monthly sessions for the first 3 months, then booster sessions every 3–6 months thereafter.
Does it work? Research is young; so far 60% of trials have found it worked; 40% found it didn’t. When it works, effectiveness (in terms of hair restoration) is considered to be between 25–43%. Results are inconsistent and seem to vary from person to person.
In short, this doctor’s recommendation is to consider it after already having tried standard treatments such as finasteride and/or minoxidil, as they are more likely to work and don’t involve such exciting procedures as injecting your own blood extracts back into your head.
For more on all of this, plus links to the 13 papers cited, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
- Hair-Loss Remedies, By Science
- Hair Growth: Caffeine and Minoxidil Strategies
- Gentler Hair Health Options
Take care!
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:
-
The Daily Stoic – by Ryan Holiday & Stephen Hanselman
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.
What’s this, a philosophy book in a health and productivity newsletter? Well, look at it this way: Aristotle basically wrote the “How To Win Friends And Influence People” of his day, and Plato before him wrote a book about management.
In this (chiefly modern!) book, we see what the later Stoic philosophers had to say about getting the most out of life—which is also what we’re about, here at 10almonds!
We tend to use the word “stoic” in modern English to refer to a person who is resolute in the face of hardship. The traditional meaning does encompass that, but also means a lot more: a whole, rounded, philosophy of life.
Philosophy in general is not an easy thing into which to “dip one’s toe”. No matter where we try to start, it seems, it turns out there were a thousand other things we needed to read first!
This book really gets around that. The format is:
- There’s a theme for each month
- Each month has one lesson per day
- Each daily lesson starts with some words from a renowned stoic philosopher, and then provides commentary on such
- The commentary provides a jumping-off point and serves as a prompt to actually, genuinely, reflect and apply the ideas.
Unlike a lot of “a year of…” day-by-day books, this is not light reading, by the way, and you are getting a weighty tome for your money.
But, the page-length daily lessons are indeed digestible—which, again, is what we like at 10almonds!
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:
-
The Magic of L-theanine
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.
All The Benefits Of Caffeine And More, Without The Drawbacks? What’s The Catch?
It just takes one extra supplement.
For many of us, our morning brew is practically a ritual, but caffeine can also cause all kinds of problems ranging from caffeine jitters to caffeine crashes to caffeine addiction and withdrawal. Surely, something could be better?
Well, yes it could! You doubtlessly know about green tea’s antioxidant properties, but its amino acid, l-theanine (which can be taken as a supplement with coffee, if you don’t enjoy green tea) has so much more to offer:
- L-theanine has been found to reduce stress responses—and let’s face it, when we most want/need a coffee is often when facing stress
- It also reduces anxiety, making it a very safe “downer” without the problems of, for example, alcohol—or other potentially addictive substances
- It’s far more than just that, though! Paradoxically, l-theanine also improves alertness (what other calming things promote alertness? Not so many)
- Part of its trick is that it also improves accuracy—whereas stimulants like caffeine may produce a twitchy, jumpy, responsiveness, l-theanine’s signature effect is a calm state of sharp readiness. Caffeine works by stimulating the adrenal gland and increasing blood pressure, while simultaneously blocking adenosine receptors so that your body doesn’t notice its own tiredness—which is why you’re likely to crash later, when the tiredness that had been masked, all hits at once. Instead, l-theanine taken with caffeine acts as a moderator of that, making for a longer, gentler curve. In terms of subjective experience, what this can mean for many people is: no more caffeine jitters!
- All this means that while l-theanine can boost all kinds of cognitive function, including alertness and accuracy, many like to take in the evening as it can also promote a good night’s sleep, ready to be at your best the next day.
- How much to take? 200mg is a commonly used dosage, which in supplement terms is usually a single capsule. A lot easier to take than the 40 cups of green tea that this dosage would otherwise be!
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:
