Cognitive Enhancement Without Drugs
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Cognitive Enhancement Without Drugs
This is Elizabeth Ricker. She’s a Harvard-and-MIT-trained neuroscientist and researcher, who now runs the “Citizen Science” DIY-neurohacking organization, NeuroEducate.
Sounds fun! What’s it about?
The philosophy that spurs on her research and practice can be summed up as follows:
❝I’m not going to leave my brain up to my doctor or [anyone else]… My brain is my own responsibility, and I’m going to do the best that I can to optimize it❞
Her goal is not just to optimize her own brain though; she wants to make the science accessible to everyone.
What’s this about Citizen Science?
“Citizen Science” is the idea that while there’s definitely an important role in society for career academics, science itself should be accessible to all. And, not just the conclusions, but the process too.
This can take the form of huge experiments, often facilitated these days by apps where we opt-in to allow our health metrics (for example) to be collated with many thousands of others, for science. It can also involve such things as we talked about recently, getting our own raw genetic data and “running the numbers” at home to get far more comprehensive and direct information than the genetic testing company would ever provide us.
For Ricker, her focus is on the neuroscience side of biohacking, thus, neurohacking.
I’m ready to hack my brain! Do I need a drill?
Happily not! Although… Bone drills for the skull are very convenient instruments that make it quite hard to go wrong even with minimal training. The drill bit has a little step/ledge partway down, which means you can only drill through the thickness of the skull itself, before the bone meeting the wider part of the bit stops you from accidentally drilling into the brain. Still, please don’t do this at home.
What you can do at home is a different kind of self-experimentation…
If you want to consider which things are genuinely resulting in cognitive enhancement and which things are not, you need to approach the matter like a scientist. That means going about it in an organized fashion, and recording results.
There are several ways cognitive enhancement can be measured, including:
- Learning and memory
- Executive function
- Emotional regulation
- Creative intelligence
Let’s look at each of them, and what can be done. We don’t have a lot of room here; we’re a newsletter not a book, but we’ll cover one of Ricker’s approaches for each:
Learning and memory
This one’s easy. We’re going to leverage neuroplasticity (neurons that fire together, wire together!) by simple practice, and introduce an extra element to go alongside your recall. Perhaps a scent, or a certain item of clothing. Tell yourself that clinical studies have shown that this will boost your recall. It’s true, but that’s not what’s important; what’s important is that you believe it, and bring the placebo effect to bear on your endeavors.
You can test your memory with word lists, generated randomly by AI, such as this one:
You’ll soon find your memory improving—but don’t take our word for it!
Executive function
Executive function is the aspect of your brain that tells the other parts how to work, when to work, and when to stop working. If you’ve ever spent 30 minutes thinking “I need to get up” but you were stuck in scrolling social media, that was executive dysfunction.
This can be trained using the Stroop Color and Word Test, which shows you words, specifically the names of colors, which will themselves be colored, but not necessarily in the color the word pertains to. So for example, you might be shown the word “red”, colored green. Your task is to declare either the color of the word only, ignoring the word itself, or the meaning of the word only, ignoring its appearance. It can be quite challenging, but you’ll get better quite quickly:
The Stroop Test: Online Version
Emotional Regulation
This is the ability to not blow up angrily at the person with whom you need to be diplomatic, or to refrain from laughing when you thought of something funny in a sombre situation.
It’s an important part of cognitive function, and success or failure can have quite far-reaching consequences in life. And, it can be trained too.
There’s no online widget for this one, but: when and if you’re in a position to safely* do so, think about something that normally triggers a strong unwanted emotional reaction. It doesn’t have to be something life-shattering, but just something that you feel in some way bad about. Hold this in your mind, sit with it, and practice mindfulness. The idea is to be able to hold the unpleasant idea in your mind, without becoming reactive to it, or escaping to more pleasant distractions. Build this up.
*if you perchance have PTSD, C-PTSD, or an emotional regulation disorder, you might want to talk this one through with a qualified professional first.
Creative Intelligence
Another important cognitive skill, and again, one that can be cultivated and grown.
The trick here is volume. A good, repeatable test is to think of a common object (e.g. a rock, a towel, a banana) and, within a time constraint (such as 15 minutes) list how many uses you can think of for that item.
Writer’s storytime: once upon a time, I was sorting through an inventory of medical equipment with a colleague, and suggested throwing out our old arterial clamps, as we had newer, better ones—in abundance. My colleague didn’t want to part with them, so I challenged him “Give me one use for these, something we could in some possible world use them for that the new clamps don’t do better, and we’ll keep them”. He said “Thumbscrews”, and I threw my hands up in defeat, saying “Fine!”, as he had technically fulfilled my condition.
What’s the hack to improve this one? Just more volume. Creativity, as it turns out, isn’t something we can expend—like a muscle, it grows the more we use it. And because the above test is repeatable (with different objects), you can track your progress.
And if you feel like using your grown creative muscle to write/paint/compose/etc your magnum opus, great! Or if you just want to apply it to the problem-solving of everyday life, also great!
In summary…
Our brain is a wonderful organ with many functions. Society expects us to lose these as we get older, but the simple, scientific truth is that we can not only maintain our cognitive function, but also enhance and grow it as we go.
Want to know more from today’s featured expert?
You might enjoy her book, “Smarter Tomorrow”, which we reviewed back in March
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Sleep Smarter – by Shawn Stevenson
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You probably know to avoid blue light before bed, put a curfew on the caffeine, and have fresh bedding. So, what does this book offer that’s new?
As the subtitle suggests, it’s 21 tips for better sleep, so if even half of them are new, then it’ll still be adding value.
This is a book review, not a book summary, but to give an idea of the kind of thing you might not already know: there’s a section on bedroom houseplants! For example…
- Which plants filter the air best according to NASA, rather than “according to tradition”
- Which plants will thrive in what will hopefully be a cool dark environment
- Which plants produce oxygen even at night, rather than just during the day
The writing style is personable without losing clarity or objectivity:
- We read personal anecdotes, and we read science
- We get “I tried this”, and we get “this sleep study found such-and-such”
- We get not just the “what”, but also the “why” and the “how”
We get the little changes that make a big difference—sometimes the difference between something working or not!
Bottom line: if you’d like to get better sleep and a blue light filter hasn’t wowed you and changed your life, this book will bring your sleep knowledge (and practice) to the next level.
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How Not to Die – by Dr. Michael Greger
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Dr. Greger (of “Dr. Greger’s Daily Dozen” fame) outlines for us in cold hard facts and stats what’s most likely to be our cause of death. While this is not a cheery premise for a book, he then sets out to work back from there—what could have prevented those specific things?
Some of the advice is what you might expect: eat green things and whole grains, skip the bacon. Other advice is less well-known: get a daily dose of curcumin/turmeric, take it with black pepper. Works wonders. If you want to add in daily exercises, just lifting the book could be a start; weighing in at 678 pages, it’s an information-dense tome that’s more likely to be sifted through than read cover-to-cover.
If you’re a more cynical sort, you might note that since the book doesn’t confer immortality, but does help us avoid statistically likely causes of death, logically it significantly increases our chances of dying in a statistically unlikely way. (Ha! Your mental exercise for today will be decoding that sentence )
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Cashew Nuts vs Coconut – Which is Healthier?
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Our Verdict
When comparing cashew nuts to coconut, we picked the cashews.
Why?
It can be argued this isn’t a fair comparison, as coconuts aren’t true nuts, but it’s at the very least a useful comparison, because they have very similar (often the same) culinary uses, so deciding between one or the other is something people will often do.
In terms of macros, cashews have 6x the protein and more than 2x the fiber, as well as slightly more fat (but the fats are healthy, as are those of coconut, by the way) and 2x the carbs. Depending on what you’re looking for, this head-to-head could come out differently, but we say it’s a win for cashews.
You may be wondering: if cashews have more of all those things, what are coconuts made of? And the answer is that coconuts have 8x the water (and yes, this is counting the coconut meat only, not including the milk inside). Of course, if you get dessicated coconut, then it won’t have that, but we’re comparing fresh to fresh.
In the category of vitamins, cashews have a lot more of vitamins B1, B2, B3, B5, B6, E, and K. Meanwhile, coconut has more vitamin C, but it’s not a lot. An easy win for cashews here.
When it comes to minerals, cashews have rather more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, selenium, and zinc. On the other hand, coconut has more sodium. Another easy win for cashews.
Cashews also have the lower glycemic index.
All in all, cashews win the day.
Want to learn more?
You might like to read:
Take care!
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The Dark Side Of Memory (And How To Make Your Life Better)
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How To Stop Revisiting Those Memories
We’ve talked before about putting the brakes on negative thought spirals (and that’s a really useful technique, so if you weren’t with us yet for that one, we do recommend hopping back and reading it!).
We’ve also talked about optimizing memory, to include making moments unforgettable.
But what about the moments we’d rather forget?
First, a quick note: we have no pressing wish or need to re-traumatize any readers, so if you’ve a pressing reason to think your memories you’d rather forget are beyond the scope of a few hundred words “one quick trick” in a newsletter, feel free to skip this section today.
One more quick note: it is generally not considered healthy to repress important memories. Some things are best worked through consciously in therapy with a competent professional.
Today’s technique is more for things in the category of “do you really need to keep remembering that one time you did something embarrassing 20 years ago?”
That said… sometimes, even when it does come to the management of serious PTSD, therapy can (intentionally, reasonably) throw in the towel on processing all of something big, and instead seek to simply look at minimizing its effect on ongoing life. Again, that’s best undertaken with a well-trained professional, however.
For more trivial annoyances, meanwhile…
Two Steps To Forgetting
The first step:
You may remember that memories are tied to the senses, and the more senses are involved, the more easily and fully we remember a thing. To remember something, therefore, we make sure to pay full attention to all the sensory experience of the memory, bringing in all 5 senses if possible.
To forget, the reverse is true. Drain the memory of color, make it black and white, fuzzier, blurrier, smaller, further away, sterile, silent, gone.
You can make a habit of doing this automatically whenever your unwanted memory resurfaces.
The
secondmissing step:This is the second step, but it’s going to be a missing step. Memories, like paths in a forest, are easier to access the more often we access them. A memory we visit every day will have a well-worn path, easy to follow. A memory we haven’t visited for decades will have an overgrown, sometimes nearly impossible-to-find path.
To labor the metaphor a little: if your memory has literal steps leading to it, we’re going to remove one of the steps now, to make it very difficult to access accidentally. Don’t worry, you can always put the step back later if you want to.
Let’s say you want to forget something that happened once upon a time in a certain workplace. Rather than wait for the memory in question to come up, we’re going to apply the first step that we just learned, to the entire workplace.
So, in this example, you’d make the memory of that workplace drained of color, made black and white, fuzzier, blurrier, smaller, further away, sterile, silent, gone.
Then, you’d make a habit of doing that whenever that workplace nearly comes to mind.
The result? You’re unlikely to accidentally access a memory that occurred in that workplace, if even mentally wandering to the workplace itself causes it to shrivel up and disappear like paper in fire.
Important reminder
The above psychological technique is to psychological trauma what painkillers are to physical pain. It can ease the symptom, while masking the cause. If it’s something serious, we recommend enlisting the help of a professional, rather than “self-medicating” in this fashion.
If it’s just a small annoying thing, though, sometimes it’s easier to just be able to refrain from prodding and poking it daily, forget about it, and enjoy life.
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Healthy Living in a Contaminated World – by Dr. Donald Hoernschemeyer
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There’s a lot going on here, as this book tackles very many kinds of common contaminants, from waste products and industrial chemicals (such as from fracking), pesticides that are banned in most places but not the US, smog and soot from coal and oil power, mercury and other heavy metals, dioxins, Teflon and its close relatives, phthalates, BPA, and other things again regulated out of use in many countries but not entirely in the US (which bans them only in some things, like baby bottles), drinking water issues of various kinds, and much more.
Indeed, there’s a whole chapter on the US and international regulation of toxic substances; the problem is often that on a political level, the same people who are against nebulous “chemicals” are also against environmentalist regulations that would ban them. This is mostly not a political book though, and rather is chiefly a book of chemistry (the author’s field).
It does also cover the medical maladies associated with various contaminants, while the bulk of the data is on the chemistry side of such things as “elimination times for toxic chemicals”, “amounts of pesticides in fruit and vegetables”, “antibiotics and hormones used in animal agriculture”, and so forth.
The style is dense, and/but it is clear the author has made an effort to not be too dry. Still, this is not a fun read; it’s depressing in content and the style is more suited to academia. There are appendices containing glossaries and acronym tables, but reading front-to-back, there’s a lot that’s not explained so unless you also are a PhD chemist, chances are you’ll be needing to leaf forwards and backwards a lot.
Bottom line: this book is not thrilling, but what you don’t know, can kill you.
Click here to check out Healthy Living In A Contaminated World, and improve your odds!
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Habits of a Happy Brain – by Dr. Loretta Graziano Breuning
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There are lots of books on “happy chemicals” and “how to retrain your brain”, so what makes this one different?
Firstly, it focuses on four “happy chemicals”, not just one:
- Serotonin
- Dopamine
- Oxytocin
- Endorphins
It also looks at the role of cortisol, and how it caps off each of those just a little bit, to keep us just a little malcontent.
Behavioral psychology tends to focus most on dopamine, while prescription pharmaceuticals for happiness (i.e., most antidepressants) tend to focus on serotonin. Here, Dr. Breuning helps us understand the complex interplay of all of the aforementioned chemicals.
She also clears up many misconceptions, since a lot of people misattribute the functions of each of these.
Common examples include “I’m doing this for the serotonin!” when the activity is dopaminergic not serotoninergic, or considering dopamine “the love molecule” when oxytocin, or even something else like phenylethylamine would be more appropriate.
The above may seem like academic quibbles and not something of practical use, but if we want to biohack our brains, we need to do better than the equivalent of a chef who doesn’t know the difference between salt and sugar.
Where things are of less practical use, she tends to skip over or at least streamline them. For example, she doesn’t really discuss the role of post-dopamine prolactin in men—but the discussion of post-happiness cortisol covers the same ground anyway, for practical purposes.
Dr. Breuning also looks at where our evolved neurochemical responses go wrong, and lays out guidelines for such challenges as overcoming addiction, or embracing delayed gratification.
Bottom line: this book is a great user-manual for the brain. If you’d like to be happier and more effective with fewer bad habits, this is the book for you.
Click here to check out Habits of a Happy Brain, and get biohacking yours!
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