Wakefulness, Cognitive Enhancement, AND Improved Mood?

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Old Drug, New Tricks?

Modafinil (also known by brand names including Modalert and Provigil) is a dopamine uptake inhibitor.

What does that mean? It means it won’t put any extra dopamine in your brain, but it will slow down the rate at which your brain removes naturally-occuring dopamine.

The result is that your brain will get to make more use of the dopamine it does have.

(dopamine is a neutrotransmitter that allows you to feel wakeful and happy, and perform complex cognitive tasks)

Modafinil is prescribed for treatment of excessive daytime sleepiness. Often that’s caused by shift work sleep disorder, sleep apnea, restless leg syndrome, or narcolepsy.

Read: Overview of the Clinical Uses, Pharmacology, and Safety of Modafinil

Many studies done on humans (rather than rats) have been military experiments to reduce the effects of sleep deprivation:

Click Here To See A Military Study On Modafinil!

They’ve found modafinil to be helpful, and more effective and more long-lasting than caffeine, without the same “crash” later. This is for two reasons:

1) while caffeine works by blocking adenosine (so you don’t feel how tired you are) and by constricting blood vessels (so you feel more ready-for-action), modafinil works by allowing your brain to accumulate more dopamine (so you’re genuinely more wakeful, and you get to keep the dopamine)

2) the biological half-life of modafinil is 12–15 hours, as opposed to 4–8 hours* for caffeine.

*Note: a lot of sources quote 5–6 hours for caffeine, but this average is misleading. In reality, we are each genetically predetermined to be either a fast caffeine metabolizer (nearer 4 hours) or a slow caffeine metabolizer (nearer 8 hours).

What’s a biological half-life (also called: elimination half-life)?

A substance’s biological half-life is the time it takes for the amount in the body to be reduced by exactly half.

For example: Let’s say you’re a fast caffeine metabolizer and you have a double-espresso (containing 100mg caffeine) at 8am.

By midday, you’ll have 50mg of caffeine left in your body. So far, so simple.

By 4pm you might expect it to be gone, but instead you have 25mg remaining (because the amount halves every four hours).

By 8pm, you have 12.5mg remaining.

When midnight comes and you’re tucking yourself into bed, you still have 6.25mg of caffeine remaining from your morning coffee!

Use as a nootropic

Many healthy people who are not sleep-deprived use modafinil “off-label” as a nootropic (i.e., a cognitive enhancer).

Read: Modafinil for cognitive neuroenhancement in healthy non-sleep-deprived subjects: A systematic review

Important Note: modafinil is prescription-controlled, and only FDA-approved for sleep disorders.

To get around this, a lot of perfectly healthy biohackers describe the symptoms of sleep pattern disorder to their doctor, to get a prescription.

We do not recommend lying to your healthcare provider, and nor do we recommend turning to the online “grey market”.

Such websites often use anonymized private doctors to prescribe on an “informed consent” basis, rather than making a full examination. Those websites then dispense the prescribed medicines directly to the patient with no further questions asked (i.e. very questionable practices).

Caveat emptor!

A new mood-brightener?

Modafinil was recently tested head-to-head against Citalapram for the treatment of depression, and scored well:

See its head-to-head scores here!

How does it work? Modafinil does for dopamine what a lot of anti-depressants do for serotonin. Both dopamine and serotonin promote happiness and wakefulness.

This is very promising, especially as modafinil (in most people, at least) has fewer unwanted side-effects than a lot of common anti-depressant medications.

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  • Mung Beans vs Black Gram – Which is Healthier?

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    Our Verdict

    When comparing mung beans to black gram, we picked the black gram.

    Why?

    Both are great, and it was close!

    In terms of macros, the main difference is that mung beans have slightly more fiber, while black gram has slightly more protein. So, it comes down to which we prioritize out of those two, and we’re going to call it fiber and thus hand the win in this category to mung beans—but it’s very close in either case.

    In the category of vitamins, mung beans have more of vitamins B1, B6, and B9, while black gram has more of vitamins A, B2, B3, and B5. They’re equal on vitamins C, E, K, and choline. So, a marginal victory by the numbers for black gram here.

    When it comes to minerals, mung beans have more copper and potassium, while black gram has more calcium, iron, magnesium, manganese, and phosphorus. They’re equal on selenium and zinc. Another win for black gram.

    Adding up the sections makes for an overall win for black gram, but by all means enjoy either or both; diversity is good!

    Want to learn more?

    You might like to read:

    What’s Your Plant Diversity Score?

    Enjoy!

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  • Over-50s Physio: What My 5 Oldest Patients (Average Age 92) Do Right

    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.

    Oftentimes, people of particularly advanced years will be asked their secret to longevity, and sometimes the answers aren’t that helpful because they don’t actually know, and ascribe it to some random thing. Will Harlow, the over-50s specialist physio, talks about the top 5 science-based things that his 5 oldest patients do, that enhances the healthy longevity that they are enjoying:

    The Top 5’s Top 5

    Here’s what they’re doing right:

    Daily physical activity: all five patients maintain a consistent habit of daily exercise, which includes activities like exercise classes, home workouts, playing golf, or taking daily walks. They prioritize movement even when it’s difficult, rarely skipping a day unless something serious happened. A major motivator was the fear of losing mobility, as they had seen spouses, friends, or family members stop exercising and never start again.

    Stay curious: a shared trait among the patients was their curiosity and eagerness to learn. They enjoy meeting new people, exploring new experiences, and taking on new challenges. Two of them attended the University of the Third Age to learn new skills, while another started playing bridge as a new hobby. The remaining two have recently made new friends. They all maintain a playful attitude, a good sense of humor, and aren’t afraid to fail or laugh at themselves.

    Prioritize sleep (but not too much): the patients each average seven hours of sleep per night, aligning with research suggesting that 7–9 hours of sleep is ideal for health. They maintain consistent sleep and wake-up times, which contributes to their well-being. While they allow themselves short naps when needed, they avoid long afternoon naps to avoid disrupting their sleep patterns.

    Spend time in nature: spending time outdoors is a priority for all five individuals. Whether through walking, gardening, or simply sitting on a park bench, they make it a habit to connect with nature. This aligns with studies showing that time spent in natural environments, especially near water, significantly reduces stress. When water isn’t accessible, green spaces still provide a beneficial boost to mental health.

    Stick to a routine: the patients all value simple daily routines, such as enjoying an evening cup of tea, taking a daily walk, or committing to small gardening tasks. These routines offer mental and physical grounding, providing stability even when life becomes difficult sometimes. They emphasized the importance of keeping routines simple and manageable to ensure they could stick to them regardless of life’s challenges.

    For more on each of these, enjoy:

    Click Here If The Embedded Video Doesn’t Load Automatically!

    Want to learn more?

    You might also like to read:

    Top 8 Habits Of The Top 1% Healthiest Over-50s ← another approach to the same question, this time with a larger sample size, and/but many younger (than 90s) respondents.

    Take care!

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  • Felt Time – by Dr. Marc Wittmann

    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.

    This book goes far beyond the obvious “time flies when you’re having fun / passes slowly when bored”, or “time seems quicker as we get older”. It does address those topics too, but even in doing so, unravels deeper intricacies within.

    The author, a research psychologist, includes plenty of reference to actual hard science here, and even beyond subjective self-reports. For example, you know how time seems to slow down upon immediate apparent threat of violent death (e.g. while crashing, while falling, or other more “violent human” options)? We learn of an experiment conducted in an amusement park, where during a fear-inducing (but actually safe) plummet, subjective time slows down yes, but measures of objective perception and cognition remained the same. So much for adrenal superpowers when it comes to the brain!

    We also learn about what we can change, to change our perception of time—in either direction, which is a neat collection of tricks to know.

    The style is on the dryer end of pop-sci; we suspect that being translated from German didn’t help its levity. That said, it’s not scientifically dense either (i.e. not a lot of jargon), though it does have many references (which we like to see).

    Bottom line: if you’ve ever wished time could go more quickly or more slowly, this book can help with that.

    Click here to check out Felt Time, and make yours count!

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  • Peace Is Every Step – by Thích Nhất Hạnh

    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.

    Mindfulness is one of the few practices to make its way from religion (in this case, Buddhism) into hard science. We’ve written before about its many evidence-based benefits, and many national health information outlets recommend it. So, what does this book have to add?

    Thích Nhất Hạnh spent most of his 95 years devoted to the practice and teaching of mindfulness and compassion. In this book, the focus is on bringing mindfulness off the meditation mat and into general life.

    After all, what if we could extend that “unflappability” into situations that pressure and antagonize us? That would be some superpower!

    The author offers techniques to do just that, simple exercises to transform negative emotions, and to make us more likely to remember to do so.

    After all, “in the heat of the moment” is rarely when many of us are at our best, this book gives way to allow those moments themselves to serve as immediate triggers to be our best.

    The title “Peace Is Every Step” is not a random collection of words; the goal of this book is to enable to reader to indeed carry peace with us as we go.

    Not just “peace is always available to us”, but if we do it right: “we have now arranged for our own peace to automatically step in and help us when we need it most”.

    Bottom line: if you’d like to practice mindfulness, or practice it more consistently, this book offers some powerful tools.

    Click here to check out Peace Is Every Step, and carry yours with you!

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  • The Spice Of Life

    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.

    It’s Q&A Day at 10almonds!

    Have a question or a request? You can always hit “reply” to any of our emails, or use the feedback widget at the bottom!

    In cases where we’ve already covered something, we might link to what we wrote before, but will always be happy to revisit any of our topics again in the future too—there’s always more to say!

    As ever: if the question/request can be answered briefly, we’ll do it here in our Q&A Thursday edition. If not, we’ll make a main feature of it shortly afterwards!

    So, no question/request too big or small

    ❝Great newsletter. Am taking turmeric for inflammation of hips and feet. Works like magic. Would like to know how it works, and what tumeric is best combined with – also whether there any risks in longterm use.❞

    Glad you’re enjoying! As for turmeric, it sure is great, isn’t it? To answer your questions in a brief fashion:

    • How it works: it does a lot of things, but perhaps its most key feature is its autoxidative metabolites that mediate its anti-inflammatory effect. Thus, it slows or inhibits oxidative stress that would otherwise cause inflammation, increase cancer risk, and advance aging.
    • Best combined with: black pepper
    • Any risks in long-term use: there are no known risks in long-term use ← that’s just one study, but there are lots. Some studies were prompted by reported hepatotoxicity of curcumin supplements, but a) the reports themselves seem to be without evidence b) the reported hepatoxicity was in relation to contaminants in the supplements, not the curcumin itself c) clinical trials were unable to find any hepatotoxicity (or other) risks anyway. Here’s an example of such a study.

    You might also like our previous main feature: Why Curcumin (Turmeric) Is Worth Its Weight In Gold

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  • Lettuce vs Arugula – Which is Healthier?

    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.

    Our Verdict

    When comparing lettuce to arugula, we picked the arugula.

    Why?

    These two salad leaves that often fulfil quite similar culinary roles (base of a green salad) are actually of different families, and it shows…

    In terms of macros, arugula is lower in carbs, and much higher in protein and fiber—to the point that the protein content in arugula is almost equal to the carb content, which for leaves, is not that common a thing to see.

    When it comes to vitamins, things are more even: lettuce has more of vitamins A, B1, B3, B6, and K, while arugula has more of vitamins B5, B9, C, E, and choline. All in all, we can comfortably call it a tie on the vitamin front.

    In the category of minerals, things are once again more decided: arugula has more calcium, copper, iron, magnesium, manganese, phosphorus, potassium, and zinc. In contrast, lettuce boasts only more selenium. An easy win for arugula.

    Both of these plants have plenty of health-giving phytochemicals, including flavonoids and carotenoids along with other less talked-about things, and while the profiles are quite different for each of them, they stack up about the same in terms of overall benefits in this category.

    Taking the various categories into account, this of course adds up to an easy win for arugula, but do enjoy both, especially as lettuce brings benefits that arugula doesn’t in the two categories where they tied!

    Want to learn more?

    You might like to read:

    Take care!

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