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- What Are Nootropics, Really?
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⏰ IN A RUSH?
Today’s 30-Second Summary
If you don’t have time to read the whole email today, here are some key takeaways:
Nootropics, or cognitive enhancers, are things that boost our brainpower in one way or another.
They can work in very different ways, for example:
By increasing amounts of a certain neurotransmitter in the brain
By changing how our brain interacts with a certain neurotransmitter
By improving how our body delivers blood, oxygen, and nutrients to the brain
By giving our brain more of the nutrients it needs to replenish its physical structure
By working in weird and mystical ways—ok, there is science here, but this is a “catch-all” category of often obscure compounds found in nature that have hyperspecific effects on our brain, some of which have been studied a lot, and some of which we understand (some we don’t yet!)
Omega-3 fatty acids have a lot of health benefits—including for the brain—but not all sources are created equal
Today's sponsor, NativePath, are offering a convenient, sustainable, and highly bioavailable form—far better than cod liver oil!
Read on to learn about these things and more…
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Chickpea Curry, an (almost) perfect one-pot meal
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🧠 MAIN FEATURE
What are nootropics, really?
A nootropic is anything that functions as a cognitive enhancer—in other words, improves our brainpower.
These can be sensationalized as “smart drugs”, misrepresented excitingly in science fiction, meme-ified in the mundane (“but first, coffee”), and reframed entirely, (“exercise is the best nootropic”).
So, clearly, “nootropics” can mean a lot of different things. Let’s look at some of the main categories…
The neurochemical modulators
These are what often get called “smart drugs”. They are literally drugs (have a chemical effect on the body that isn’t found in our diet), and they affect the levels of certain neurotransmitters in the brain, such as by:
Adding more of that neurotransmitter (simple enough)
Decreasing the rate at which we lose that neurotransmitter (re-uptake inhibitors)
Antagonizing an unhelpful neurotransmitter (doing the opposite thing to it)
Blocking an unhelpful neurotransmitter (stopping the receptors from receiving it)
“Unhelpful” here is relative and subjective, of course. We need all the neurotransmitters that are in our brain, after all, we just don’t need all of them all the time.
Examples: modafinil, a dopamine re-uptake inhibitor (mostly prescribed for sleep disorders), reduces the rate at which our brains scrub dopamine, resulting in a gradual build-up of dopamine that we naturally produced, so we get to enjoy that dopamine for longer. This will tend to promote wakefulness, and may also help with problem-solving and language faculties—as well as giving a mood boost. In other words, all things that dopamine is used for. Mirtazaрine, an adrenoreceptor agonist (mostly prescribed as an antidepressant), increases noradrenergic neurotransmission, thus giving many other brain functions a boost.
Why it works: our brains need healthy levels of neurotransmitters, in order to function well. Those levels are normally self-regulating, but can become depleted in times of stress or fatigue, for example.
The metabolic brain boosters
These are the kind of things that get included in nootropic stacks (stack = a collection of supplements and/or drugs that complement each other and are taken together—for example, a multivitamin tablet could be described as a vitamin stack) even though they have nothing specifically relating them to brain function. Why are they included?
The brain needs so much fuel. Metabolically speaking, it’s a gas-guzzler. It’s the single most resource-intensive organ of our body, by far. So, metabolic brain boosters tend to:
Increase blood flow
Increase blood oxygenation
Increase blood general health
Improve blood pressure (this is relative and subjective, since very obviously there’s a sweet spot)
Examples: B-vitamins. Yep, it can be that simple. A less obvious example might be Co-enzyme Q10, which supports energy production on a cellular level, and good cardiovascular health.
Why it works: you can’t have a healthy brain without a healthy heart!
We are such stuff as brains are made of
Our brains are made of mostly fat, water, and protein. But, not just any old fat and protein—we’re at least a little bit special! So, brain-food foods tend to:
Give the brain the fats and proteins it’s made of
Give the brain the stuff to make the fats and proteins it’s made of (simpler fats, and amino acids)
Give the brain hydration! Just having water, and electrolytes as appropriate, does this
Examples: healthy fats from nuts, seeds, and seafood; also, a lot of phytonutrients from greens and certain fruits. Long-time subscribers may remember our article “Brain Food: The Eyes Have It!” on the importance of dietary lutein in reducing Alzheimer’s risk, for example
Why it works: this is matter of structural upkeep and maintenance—our brains don’t work fabulously if deprived of the very stuff they’re made of! Especially hydration is seriously underrated as a nootropic factor, by the way. Most people are dehydrated most of the time, and the brain dehydrates quickly. Fortunately, it rehydrates quickly as well when we take hydrating liquids.
Weird things that sound like ingredients in a witch’s potion
These are too numerous and too varied in how they work to cover here, but they do appear a lot in nootropic stacks and in popular literature on the subject.
Often they work by one of the mechanisms described above; sometimes we’re not entirely sure how they work, and have only measured their effects sufficiently to know that, somehow, they do work.
Examples: panax ginseng is one of the best-studied examples that still remains quite mysterious in many aspects of its mechanism. Lion’s Mane (the mushroom, not the jellyfish or the big cat hairstyle), meanwhile, is known to contain specific compounds that stimulate healthy brain cell growth.
Why it works: as we say, it varies so much from on ingredient to another in this category, so… Watch out for our Research Review Monday features, as we’ll be covering some of these in the coming weeks!
(PS, if there’s any you’d like us to focus on, let us know! We always love to hear from you. You can hit reply to any of our emails, or use the handy feedback widget at the bottom)
❤️ OUR SPONSORS MAKE THIS PUBLICATION POSSIBLE
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🌏 AROUND THE WEB
What’s happening in the health world…
More to come tomorrow!
📖 ONE-MINUTE BOOK REVIEW
Never Enough: the neuroscience and experience of addiction - by Dr. Judith Grisel
We've reviewed books about addiction before—specifically about alcohol, at least. This one's more general in that it covers different addictions.
On the other hand, it's also more specific, in that it covers them from the author's field: neuroscience.
...and experience too. The author had a plethora of addictions (the serious kind), got sober, and then undertook to study neuroscience. Her hope was to help others avoid, or escape from the same as‚ what she went through.
Dr. Grisel (as she now is) takes a methodical approach in this book. She works her way through the addictive mechanisms of a broad selection of common drugs, explaining each.
The focus here is on neutral explanations, rather than the propagandizing scaremongering that failed at least one generation. Why each drug is alluring, what it really does do—and the neurological price it exacts, down to the molecular level.
She also covers risk factors for addiction; genetic, epigenetic, and environmental. There's no "if you were stronger", or "these people made bad choices", so much as... Many addicts were, in effect, sabotaged from before birth.
That doesn't mean that to become addicted or not is just fate, but it does mean... There but for the grace of factors completely outside of our control go we.
Why is this useful to us, be we a reader without any meaningful addiction (we're not counting coffee etc here)? Well, as this book illustrates and explains, many of us could be one (more) mishap away from a crippling addiction and not know it. Forewarned is forearmed.
Bottom line: almost all of us are, have been, or will be touched by addiction in some way. Either directly, or a loved one, or a loved one's loved one, or perhaps a parent who gave us an epigenetic misfortune. This book gives understanding that can help.
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May today see you happy and in good health,
The 10almonds Team