Neurotransmitter Cheatsheet

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Which Neurotransmitter?

There are a lot of neurotransmitters that are important for good mental health (and, by way of knock-on effects, physical health).

However, when pop-science headlines refer to them as “feel-good chemicals” (yes but which one?!) or “the love molecule” (yes but which one?!) or other such vague names when referring to a specific neurotransmitter, it’s easy to get them mixed up.

So today we’re going to do a little disambiguation of some of the main mood-related neurotransmitters (there are many more, but we only have so much room), and what things we can do to help manage them.

Dopamine

This one predominantly regulates reward responses, though it’s also necessary for critical path analysis (e.g. planning), language faculties, and motor functions. It makes us feel happy, motivated, and awake.

To have more:

  • eat foods that are rich in dopamine or its precursors such as tyrosine (bananas and almonds are great)
  • do things that you find rewarding

Downsides: is instrumental in most addictions, and also too much can result in psychosis. For most people, that level of “too much” isn’t obtainable due to the homeostatic system, however.

See also: Rebalancing Dopamine (Without “Dopamine Fasting”)

Serotonin

This one predominantly helps regulate our circadian rhythm. It also makes us feel happy, calm, and awake.

To have more:

  • get more sunlight, or if the light must be artificial, then (ideally) full-spectrum light, or (if it’s what’s available) blue light
  • spend time in nature; we are hardwired to feel happy in the environments in which we evolved, which for most of human history was large open grassy expanses with occasional trees (however, for modern purposes, a park or appropriate garden will suffice).

Downsides: this is what keeps us awake at night if we had too much light before bed, and also too much serotonin can result in (potentially fatal) serotonin syndrome. Most people can’t get that much serotonin due to our homeostatic system, but some drugs can force it upon us.

See also: Seasonal Affective Disorder Strategies

Oxytocin

This one predominantly helps us connect to others on an emotional level. It also makes us feel happy, calm, and relaxed.

To have more:

  • hug a loved one (or even just think about doing so, if they’re not available)
  • look at pictures/videos of cute puppies, kittens, and the like—this triggers a similar response

Downsides: negligible. Socially speaking, it can cause us to drop our guard, most for most people most of the time, this is not a problem. It can also reduce sexual desire—it’s in large part responsible for the peaceful lulled state post-orgasm. It’s not responsible for the sleepiness in men though; that’s mostly prolactin.

See also: Only One Kind Of Relationship Promotes Longevity This Much!

Adrenaline

This one predominantly affects our sympathetic nervous system; it elevates heart rate, blood pressure, and other similar functions. It makes us feel alert, ready for action, and energized.

To have more:

  • listen to a “power anthem” piece of music. What it is can depend on your musical tastes; whatever gets you riled up in an empowering way.
  • engage in something competitive that you feel strongly about while doing it—or by the same mechanism, a solitary activity where the stakes feel high even if it’s actually quite safe (e.g. watching a thriller or a horror movie, if that’s your thing).

Downsides: its effects are not sustainable, and (in cases of chronic stress) the body will try to sustain them anyway, which has a deleterious effect. Because adrenaline and cortisol are closely linked, chronically high adrenal action will tend to mean chronically high cortisol also.

See also: Lower Your Cortisol! (Here’s Why & How)

PS: it is also called epinephrine, and chemically different but almost identical in most ways, noradrenaline or norepinephrine

Some final words

You’ll notice that in none of the “how to have more” did we mention drugs. That’s because:

  • a drug-free approach is generally the best thing to try first, at the very least
  • there are simply a lot of drugs to affect each one (or more), and talking about them would require talking about each drug in some detail.

However, the following may be of interest for some readers:

Antidepressants: Personalization Is Key!

Take care!

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  • Goat Milk Greek Yogurt vs Almond Milk Greek Yogurt – Which is Healthier?

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    Our Verdict

    When comparing goat milk yogurt to almond milk yogurt, we picked the almond milk yogurt.

    Why?

    Surprised? Honestly, we were too!

    Much as we love almonds, we were fully expecting to write about how they’re very close in nutritional value, but the dairy yogurt has more probiotics, but no, as it turns out when we looked into them, they’re quite comparable in that regard.

    It’s easy to assume “goat milk yogurt is more natural and therefore healthier”, but in both cases, it was a case of taking a fermentable milk, and fermenting it (an ancient process). “But almond milk is a newfangled thing”, well, new-ish…

    So what was the deciding factor?

    In this case, the almond milk yogurt has about twice the protein per (same size) serving, compared to the goat milk; all the other macros are about the same, and the micronutrients are similar. Like many plant-based milks and yogurts, this one is fortified with calcium and vitamin D, so that wasn’t an issue either.

    In short: the only meaningful difference was the protein, and the almond came out on top.

    However!

    The almond came out on top only because it is strained; this can be done (or not) with any kind of yogurt, be it from an animal or a plant. 

    In other words: if it had been different brands, the goat milk yogurt could have come out on top!

    The take-away idea here is: always read labels, because as you’ve just seen, even we can get surprised sometimes!

    seriously if you only remember one thing from this today, make it the above

    Other thing worth mentioning: yogurts, and dairy products in general, are often made with common allergens (e.g. dairy, nuts, soy, etc). So if you are allergic or intolerant, obviously don’t choose the one to which you are allergic or intolerant.

    That said… If you are lactose-intolerant, but not allergic, goat’s milk does have less lactose than cow’s milk. But of course, you know your limits better than we can in this regard.

    Want to try some?

    Amazon is not coming up with the goods for this one (or anything even similar, at time of writing), so we recommend trying your local supermarket (and reading labels, because products vary widely!)

    What you’re looking for (be it animal- or plant-based):

    • Live culture probiotic bacteria
    • No added sugar
    • Minimal additives in general
    • Lastly, check out the amounts for protein, calcium, vitamin D, etc.

    Enjoy!

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  • Psychology Sunday: Family Estrangement & How To Fix It

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    Estrangement, And How To Heal It

    We’ve written before about how deleterious to the health loneliness and isolation can be, and what things can be done about it. Today, we’re tackling a related but different topic.

    We recently had a request to write about…

    ❝Reconciliation of relationships in particular estrangement mother adult daughter❞

    And, this is not only an interesting topic, but a very specific one that affects more people than is commonly realized!

    In fact, a recent 800-person study found that more than 43% of people experienced family estrangement of one sort or another, and a more specific study of more than 2,000 mother-child pairs found that more than 11% of mothers were estranged from at least one adult child.

    So, if you think of the ten or so houses nearest to you, probably at least one of them contains a parent estranged from at least one adult child. Maybe it’s yours. Either way, we hope this article will give you some pause for thought.

    Which way around?

    It makes a difference to the usefulness of this article whether any given reader experiencing estrangement is the parent or the adult child. We’re going to assume the reader is the parent. It also makes a difference who did the estranging. That’s usually the adult child.

    So, we’re broadly going to write with that expectation.

    Why does it happen?

    When our kids are small, we as parents hold all the cards. It may not always feel that way, but we do. We control our kids’ environment, we influence their learning, we buy the food they eat and the clothes they wear. If they want to go somewhere, we probably have to take them. We can even set and enforce rules on a whim.

    As they grow, so too does their independence, and it can be difficult for us as parents to relinquish control, but we’re going to have to at some point. Assuming we are good parents, we just hope we’ve prepared them well enough for the world.

    Once they’ve flown the nest and are living their own adult lives, there’s an element of inversion. They used to be dependent on us; now, not only do they not need us (this is a feature not a bug! If we have been good parents, they will be strong without us, and in all likelihood one day, they’re going to have to be), but also…

    We’re more likely to need them, now. Not just in the “oh if we have kids they can look after us when we’re old” sense, but in that their social lives are growing as ours are often shrinking, their family growing, while ours, well, it’s the same family but they’re the gatekeepers to that now.

    If we have a good relationship, this goes fine. However, it might only take one big argument, one big transgression, or one “final straw”, when the adult child decides the parent is more trouble than they’re worth.

    And, obviously, that’s going to hurt. But it’s pretty much how it pans out, according to studies:

    Here be science: Tensions in the Parent and Adult Child Relationship: Links to Solidarity and Ambivalence

    How to fix it, step one

    First, figure out what went wrong.

    Resist any urge to protect your own feelings with a defensive knee-jerk “I don’t know; I was a good, loving parent”. That’s a very natural and reasonable urge and you’re quite possibly correct, but it won’t help you here.

    Something pushed them away. And, it will almost certainly have been a push factor from you, not a pull factor from whoever is in their life now. It’s easy to put the blame externally, but that won’t fix anything.

    And, be honest with yourself; this isn’t a job interview where we have to present a strength dressed up as a “greatest weakness” for show.

    You can start there, though! If you think “I was too loving”, then ok, how did you show that love? Could it have felt stifling to them? Controlling? Were you critical of their decisions?

    It doesn’t matter who was right or wrong, or even whether or not their response was reasonable. It matters that you know what pushed them away.

    How to fix it, step two

    Take responsibility, and apologize. We’re going to assume that your estrangement is such that you can, at least, still get a letter to them, for example. Resist the urge to argue your case.

    Here’s a very good format for an apology; please consider using this template:

    The 10-step (!) apology that’s so good, you’ll want to make a note of it

    You may have to do some soul-searching to find how you will avoid making the same mistake in the future, that you did in the past.

    If you feel it’s something you “can’t change”, then you must decide what is more important to you. Only you can make that choice, but you cannot expect them to meet you halfway. They already made their choice. In the category of negotiation, they hold all the cards now.

    How to fix it, step three

    Now, just wait.

    Maybe they will reply, forgiving you. If they do, celebrate!

    Just be aware that once you reconnect is not the time to now get around to arguing your case from before. It will never be the time to get around to arguing your case from before. Let it go.

    Nor should you try to exact any sort of apology from them for estranging you, or they will at best feel resentful, wonder if they made a mistake in reconnecting, and withdraw.

    Instead, just enjoy what you have. Many people don’t get that.

    If they reply with anger, maybe it will be a chance to reopen a dialogue. If so, family therapy could be an approach useful for all concerned, if they are willing. Chances are, you all have things that you’d all benefit from talking about in a calm, professional, moderated, neutral environment.

    You might also benefit from a book we reviewed previously, “Parent Effectiveness Training”. This may seem like “shutting the stable door after the horse has bolted”, but in fact it’s a very good guide to relationship dynamics in general, and extensively covers relations between parents and adult children.

    If they don’t reply, then, you did your part. Take solace in knowing that much.

    Some final thoughts:

    At the end of the day, as parents, our kids living well is (hopefully) testament to that we prepared them well for life, and sometimes, being a parent is a thankless task.

    But, we (hopefully) didn’t become parents for the plaudits, after all.

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  • Moore’s Clinically Oriented Anatomy – by Dr. Anne Argur & Dr. Arthur Dalley

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    Imagine, if you will, Grey’s Anatomy but beautifully illustrated in color and formatted in a way that’s easy to read—both in terms of layout and searchability, and also in terms of how this book presents anatomy described in a practical, functional context, with summary boxes for each area, so that the primary concepts don’t get lost in the very many details.

    (In contrast, if you have a copy of the famous Grey’s Anatomy, you’ll know it’s full of many pages of nothing but tiny dense text, a large amount of which is Latin, with occasional etchings by way of illustration)

    Another way in which this does a lot better than the aforementioned seminal work is that it also describes and discusses very many common variations and abnormalities, both congenital and acquired, so that it’s not just a text of “what a theoretical person looks like inside”, but rather also reflects the diverse reality of the human form (we weren’t made identically in a production line, and so we can vary quite a bit).

    The book is, of course, intended for students and practitioners of medicine and related fields, so what good is it to the lay person? Well, if you ask the average person where the gallbladder is and why we have one, they will gesture in the general direction of the abdomen, and sort of shrug sheepishly. You don’t have to be that person 🙂

    Bottom line: if you’d like to know your acetabulum from your zygomatic arch, this is the best anatomy book this reviewer has yet seen.

    Click here to check out Moore’s Clinically Oriented Anatomy, and prepare to be amazed!

    PS: this one is expensive, but consider it a fair investment in your personal education, if you’re serious about it!

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Related Posts

  • Maximize Your Misery! (7 Great Methods)
  • 5 Ways To Avoid Hearing 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.

    Hear Ye, Hear Ye

    Hearing loss is often associated with getting older—but it can strike at any age. In the US, for example…

    • Around 13% of adults have hearing difficulties
    • Nearly 27% of those over 65 have hearing difficulties

    Complete or near-complete hearing loss is less common. From the same source…

    • A little under 2% of adults in general had a total or near-total inability to hear
    • A little over 4% of those over 65 had a total or near-total inability to hear

    Source: CDC | Hearing Difficulties Among Adults: United States, 2019

    So, what to do if we want to keep our hearing as it is?

    Avoid loud environments

    An obvious one, but it bears stating for the sake of being methodical. Loud environments damage our ears, but how loud is too loud?

    You can check how loud an environment is by using a free smartphone app, such as:

    Decibel Pro: dB Sound Level Meter (iOS / Android)

    An 82 dB environment is considered safe for 16 hours. That’s the equivalent of, for example moderate traffic.

    Every 3 dB added to that halves the safe exposure time, for example:

    • An 85 dB environment is considered safe for 8 hours. That’s the equivalent of heavier traffic, or a vacuum cleaner.
    • A 94 dB environment is considered safe for 1 hour. That might be a chainsaw, a motorcycle, or a large sporting event.

    Many nightclubs or concert venues often have environments of 110 dB and more. So the safe exposure time would be under two minutes.

    Source: NIOSH | Noise and Hearing Loss

    With differences like that per 3 dB increase, then you may want to wear hearing protection if you’re going to be in a noisy environment.

    Discreet options include things like these -20 dB silicone ear plugs that live in a little case on one’s keyring.

    Stop sticking things in your ears

    It’s said “nothing smaller than your elbow should go in your ear canal”. We’ve written about this before:

    What’s Good (And What’s Not) Against Earwax

    Look after the rest of your health

    Our ears are not islands unaffected by the rest of our health, and indeed, they’re larger and more complex organs than we think about most of the time, since we only tend to think about the (least important!) external part.

    Common causes of hearing loss that aren’t the percussive injuries we discussed above include:

    • Diabetes
    • High blood pressure
    • Smoking
    • Infections
    • Medications

    Lest that last one sound a little vague, it’s because there are hundreds of medications that have hearing loss as a potential side-effect. Here’s a list so you can check if you’re taking any of them:

    List of Ototoxic Medications That May Cause Tinnitus or Hearing Loss

    Get your hearing tested regularly.

    There are online tests, but we recommend an in-person test at a local clinic, as it won’t be subject to the limitations and quirks of the device(s) you’re using. Pretty much anywhere that sells hearing aids will probably offer you a free test, so take advantage of it!

    And, more generally, if you suddenly notice you lost some or all of your hearing in one or more ears, then get thee to a doctor, and quickly.

    Treat it as an emergency, because there are many things that can be treated if and only if they are caught early, before the damage becomes permanent.

    Use it or lose it

    This one’s important. As we get older, it’s easy to become more reclusive, but the whole “neurons that fire together, wire together” neuroplasticity thing goes for our hearing too.

    Our brain is, effectively, our innermost hearing organ, insofar as it processes the information it receives about sounds that were heard.

    There are neurological hearing problems that can show up without external physical hearing damage (auditory processing disorders being high on the list), but usually these things are comorbid with each other.

    So if we want to maintain our ability to process the sounds our ears detect, then we need to practice that ability.

    Important implication:

    That means that if you might benefit from a hearing aid, you should get it now, not later.

    It’s counterintuitive, we know, but because of the neurological consequences, hearing aids help people retain their hearing, whereas soldiering on without can hasten hearing loss.

    On the topic of hearing difficulty comorbidities…

    Tinnitus (ringing in the ears) is, paradoxically, associated with both hearing loss, and with hyperacusis (hearing supersensitivity, which sounds like a superpower, but can be quite a problem too).

    Learn more about managing that, here:

    Tinnitus: Quieting The Unwanted Orchestra In Your Ears

    Take care!

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  • Acorns vs Chestnuts – Which is Healthier?

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    Our Verdict

    When comparing acorns to chestnuts, we picked the acorns.

    Why?

    In terms of macros, chestnuts are mostly water, so it’s not surprising that acorns have a lot more carbs, fat, protein, and fiber. Thus, unless you have personal reasons for any of those to be a problem, acorns are the better choice, offering a lot more nutritional value.

    In the category of vitamins, acorns lead with a lot more of vitamins A, B2, B3, B5, B6, and B9, while chestnuts have more of vitamins B1 and C. However, that vitamin C is useless to us, because it is destroyed in the cooking process (by boiling or roasting), and both of these nuts can be harmful if consumed raw, so that cooking does need to be done. That leaves acorns with a 6:1 lead.

    When it comes to minerals, things are more even; acorns have more copper, magnesium, manganese, and zinc, while chestnuts have more calcium, iron, phosphorus, and potassium. Thus, a 4:4 tie (and yes, the margins of difference are approximately equal too).

    We mentioned “both of these nuts can be harmful if consumed raw”, so a note on that: it’s because, while both contain an assortment of beneficial phytochemicals, they also both contain tannins that, if consumed raw, chelate with iron, essentially taking it out of our diet and potentially creating an iron deficiency. Cooking tannins stops this from being an issue, and the same cooking process renders the tannins actively beneficial to the health, for their antioxidant powers.

    You may have heard that acorns are poisonous; that’s not strictly speaking true, except insofar as anything could be deemed poisonous in excess (including such things as water, and oxygen). Rather, it’s simply the above-described matter of the uncooked tannins and iron chelation. Even then, you’re unlikely to suffer ill effects unless you consume them raw in a fair quantity. While acorns have fallen from popular favor sufficient that one doesn’t see them in supermarkets, the fact is they’ve been enjoyed as an important traditional part of the diet by various indigenous peoples of N. America for centuries*, and provided they are cooked first, they are a good healthy food for most people.

    *(going so far as to cultivate natural oak savannah areas, by burning out young oaks to leave the old ones to flourish without competition, to maximize acorn production, and then store dried acorns in bulk sufficient to cover the next year or so in case of a bad harvest later—so these was not just an incidental food, but very important “our life may depend on this” food. Much like grain in many places—and yes, acorns can be ground into flour and used to make bread etc too)

    Do note: they are both still tree nuts though, so if you have a tree nut allergy, these ones aren’t for you.

    Otherwise, enjoy both; just cook them first!

    Want to learn more?

    You might like to read:

    Why You Should Diversify Your Nuts

    Take care!

    Don’t Forget…

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  • How To Build a Body That Lasts – by Adam Richardson

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    This book is written on a premise, and that premise is: “your age doesn’t define your mobility; your mobility defines your age”.

    To this end, we are treated to 328 pages of why and how to improve our mobility (mostly how; just enough on the “why” to keep the motivation flowing).

    Importantly, Richardson doesn’t expect that every reader is a regular gym-bunny or about to become one, doesn’t expect you to have several times your bodyweight in iron to life at home, and doesn’t expect that you’ll be doing the vertical splits against a wall any time soon.

    Rather, he expects that we’d like to not dislocate a shoulder while putting the groceries away, would like to not slip a disk while being greeted by the neighbor’s dog, and would like to not need a 7-step plan for putting our socks on.

    What follows is a guide to “on the good end of normal” mobility that is sustainable for life. The idea is that you might not be winning Olympic gymnastics gold medals in your 90s, but you will be able to get in and out of a car door as comfortably as you did when you were 20, for example.

    Bottom line: if you want to be a superathlete, then you might need something more than this book; if you want to be on the healthy end of average when it comes to mobility, and maintain that for the rest of your life, then this is the book for you.

    Click here to check out How To Build A Body That Lasts, and build a body that lasts!

    Don’t Forget…

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