Water Fluoridation, Atheroma, & More

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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 😎

❝I watched a documentary recently on Fluoride in our drinking water & the dangers of it. Why are we poisoning our water?❞

This is a great question, and it certainly is controversial. It sounds like the documentary you watched was predominantly or entirely negative, but there’s a lot of science to back both sides of this, and it’s not even that the science is contradictory (it’s not). It’s that what differs is people’s opinions about whether benefiting one thing is worth creating a risk to another, and that means looking at:

  • What is the risk associated with taking no action (error of omission)?
  • What is the risk associated with taking an action (error of commission)?

The whole topic is worth a main feature, but to summarize a few key points:

  • Water fluoridation is considered good for the prevention of dental cavities
  • Water fluoridation aims to deliver fluoride and doses far below dangerous levels
    • This requires working on consumer averages, though
  • ”Where do we put the safety margins?” is to some extent a subjective question, in terms of trading off one aspect of health for another
  • Too much fluoride can also be bad for the teeth (at least cosmetically, creating little white* spots)
  • Detractors of fluoride tend to mostly be worried about neurological harm
    • However, the doses in public water supplies are almost certainly far below the levels required to cause this harm.
      • That said, again this is working on consumer averages, though.
  • A good guide is: watch your teeth! Those white* spots will be “the canary in the coal mine” of more serious harm that could potentially come from higher levels due to overconsumption of fluorine.

*Teeth are not supposed to be pure white. The “Hollywood smile” is a lie. Teeth are supposed to be a slightly off-white, ivory color. Anything whiter than that is adding something else that shouldn’t be there, or stripping something off that should be there.

❝How does your diet change clean out your arteries of the bad cholesterol?❞

There’s good news and bad news here, and they can both be delivered with a one-word reply:

Slowly.

Or rather: what’s being cleaned out is mostly not the LDL (bad) cholesterol, but rather, the result of that.

When our diet is bad for cardiovascular health, our arteries get fatty deposits on their walls. Cholesterol gets stuck here too, but that’s not the main physical problem.

Our body’s natural defenses come into action and try to clean it up, but they (for example macrophages, a kind of white blood cell that consumes invaders and then dies, before being recycled by the next part of the system) often get stuck and become part of the buildup (called atheroma), which can lead to atherosclerosis and (if calcium levels are high) hardening of the arteries, which is the worst end of this.

This can then require medical attention, precisely because the body can’t remove it very well—especially if you are still maintaining a heart-unhealthy diet, thus continuing to add to the mess.

However, if it is not too bad yet, yes, a dietary change alone will reverse this process. Without new material being added to the arterial walls, the body’s continual process of rejuvenation will eventually fix it, given time (free from things making it worse) and resources.

In fact, your arteries can be one of the quickest places for your body to make something better or worse, because the blood is the means by which the body moves most things (good or bad) around the body.

All the more reason to take extra care of it, since everything else depends on it!

You might also like our previous main feature:

All Things Heart Health

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  • Sweet Potato & Black Bean Tacos

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    Fiber, protein, and polyphenols! What more could one ask for? Well, great taste and warm healthy goodness, which these deliver:

    You will need

    For the sweet potatoes:

    • 2 medium sweet potatoes, cubed (we recommend leaving the skin on, but you can peel them if you really want to)
    • 1 tbsp extra virgin olive oil
    • 2 tsp garlic powder
    • 2 tsp smoked paprika
    • 1 tsp chili powder
    • 1 tsp black pepper
    • 1 tsp ground cumin
    • 1 tsp ground turmeric
    • ½ tsp MSG or 1 tsp low-sodium salt

    For the black beans:

    • 2 cans black beans, drained and rinsed (or 2 cups black beans that you cooked yourself)
    • ¼ bulb garlic, minced
    • 1 fresh jalapeño finely chopped (or ¼ cup jalapeños from a jar, finely chopped) ← adjust quantities per your preference and per the quality of the pepper(s) you’re using; we can’t judge that from here without tasting them, so we give a good basic starting suggestion.
    • 2 tsp black pepper
    • 1 tsp red chili flakes
    • ½ tsp MSG or 1 tsp low-sodium salt

    For serving:

    • 8 small corn tortillas, or your preference if substituting
    • 1 avocado, pitted, peeled, cubed, and tossed in lime juice ← we’re mentioning this here because you want to do this as soon as you cut it, to avoid oxidation
    • Any other salad you’d like to include; fresh parsley is also a good option when it comes to greenery, or cilantro if you don’t have the soap gene
    • Tomato salsa (quantity and spice level per your preference)

    Method

    (we suggest you read everything at least once before doing anything)

    1) Preheat the oven to 400°F / 200°C.

    2) Toss the sweet potato cubes in a large bowl with the rest of the ingredients from the sweet potato section above, ensuring they are evenly coated.

    3) Bake them in the oven, on a baking tray lined with baking paper, for about 30 minutes or until tender inside and crispy at the edges. Turn them over halfway through.

    4) While that’s happening, mix the black beans in a bowl with the other ingredients from the black bean section above, and heat them gently. You could do this in a saucepan, but honestly, while it’s not glamorous, the microwave is actually better for this. Note: many people find the microwave cooks food unevenly, but there are two reasons for this and they’re both easily fixable:

    • instead of using high power for x minutes, use medium power for 2x minutes; this will produce better results
    • instead of putting the food just in a bowl, jug, or similar, use a wide bowl or similar container, and then inside that, place a small empty microwave-safe glass jar or similar upturned in the middle, and then add the food around it, so that the food is arranged in a donut shape rather than a wide cylinder shape. This means there is no “middle bit” to go underheated while the edges are heated excessively; instead, it will heat through evenly.

    If you really don’t want to do that though, use a saucepan on a very low heat, add a small amount of liquid (or tomato salsa), and stir constantly.

    5) Heat the tortillas in a dry skillet for about 30 seconds each on each side, when ready to serve.

    6) Assemble the tacos; you can do this how you like but a good order of operations is: tortilla, leafy salad (if using), potato, beans, non-leafy salad including avocado, salsa or other topping per your preference.

    Enjoy!

    Want to learn more?

    For those interested in some of the science of what we have going on today:

    Take care!

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  • Your Health Audit, From Head To Toe

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    Health Audit Time

    Here at 10almonds, we often cover quite specific things, ranging from “the effect of sodium on organs other than your heart” to “make this one small change to save your knees while driving”.

    But, we’re each a whole person, and we need to take care of the whole organism that makes up the wonderful being that we each are. If we let one part of it drop in health too much, the others will soon follow suit because of the knock-on effects.

    So, let’s do a quick self-check-up, and see what can be done for each! How’s your…

    Mental Health

    We’re doing this audit head-to-to, so let’s start it here, because mental health is also just health, and it’s difficult to tackle the others without having this one at least under control!

    Are you experiencing chronic stress? Anxiety? Depression? Joy?

    If you answered “no” to “joy” but also “no” to “depression”, you might want to rethink your answer to “depression”, by the way. Life should be a joyous thing!

    Some resources to address your mental health:

    Brain Health

    Your brain is a big, powerful organ. It uses more of your daily energy (in the physiological sense of the word, we’re talking calories and mitochondria and ATP) than any other organ, by far.

    And when it comes to organ failure, if your brain fails, then having the best joints in the world won’t help you, for example.

    Some resources to address your brain health:

    Heart Health

    Everything depends on your heart, head to toe. Tirelessly pumping blood with oxygen, nutrients, and agents of your immune system all around your body, all day every day for your entire life.

    What’s your resting heart rate like? How about your blood pressure? And while we’re on the topic of blood… how’s your blood sugar health?

    These are all important things to a) know about and b) keep on top of!

    Some resources to address your heart health:

    Gut Health

    By cell count, we’re about 10% human and 90% bacteria. By gene count, also. Pretty important, therefore, that we look after our trillions of tiny friends that keep our organism working.

    Most people in N. America, for example, get vastly under the recommended daily amount of fiber, and that’s just the most basic courtesy we could do for these bugs that keep us alive (they need that fiber to live, and their process of consuming it is beneficial to us in a stack of ways).

    Some resources to address your gut health:

    Hormonal Health

    Hormones are weird and wonderful and affect so much more than the obvious sex-related functions (but yes, those too). A lot of people don’t realize it, but having our hormones in good order or not can make the difference between abject misery and a happy, fulfilling life.

    Some resources to address your hormonal health:

    Bone/Joint Health

    Fear nothing! For you are a ghost operating a skeleton clad in flesh. But also, you know, look after that skeleton; you only get one! Being animals, we’re all about movement, and being humans, we’ve ended up with some lifestyle situations that aren’t great for that mobility. We sit too much; we walk too little; we cramp ourselves into weird positions (driving, anyone?), and we forget the range of motion we’re supposed to have. But let’s remember…

    Some resources to address your bone/joint health:

    Lastly…

    While it’s good to do a little self-audit like this every now and again, it’s even better to get a professional check-up!

    As engineers say: if you don’t schedule time for maintenance, your equipment will schedule it for you.

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  • Planning Ahead For Better Sleep

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    Sleep: 6 Dimensions And 24 Hours!

    A woman with dark hair, planning ahead for better sleep, against a white background.

    This is Dr. Lisa Matricciani, a sleep specialist from the University of South Australia, where she teaches in the School of Health Sciences.

    What does she want us to know?

    Healthy sleep begins before breakfast

    The perfect bedtime routine is all well and good, but we need to begin much earlier in the day, Dr. Matricciani advises.

    Specifically, moderate to vigorous activity early in the day plays a big part.

    Before breakfast is best, but even midday/afternoon exercise is associated with better sleep at night.

    Read more: Daytime Physical Activity is Key to Unlocking Better Sleep

    Plan your time well to sleep—but watch out!

    Dr. Matricciani’s research has also found that while it’s important to plan around getting a good night’s sleep (including planning when this will happen), allocating too much time for sleep results in more restless sleep:

    ❝Allocating more time to sleep was associated with earlier sleep onsets, later sleep offsets, less efficient and more consistent sleep patterns for both children and adults.❞

    ~ Dr. Lisa Matricciani et al.

    Read more: Time use and dimensions of healthy sleep: A cross-sectional study of Australian children and adults

    (this was very large study involving 1,168 children and 1.360 adults, mostly women)

    What counts as good sleep quality? Is it just efficiency?

    It is not! Although that’s one part of it. You may remember our previous main feature:

    The 6 Dimensions Of Sleep (And Why They Matter)

    Dr. Matricciani agrees:

    ❝Everyone knows that sleep is important. But when we think about sleep, we mainly focus on how many hours of sleep we get, when we should also be looking at our sleep experience as a whole❞

    ~ Dr. Lisa Matricciani

    Read more: Trouble sleeping? You could be at risk of type 2 diabetes

    That’s not a cheery headline, but here’s her paper about it:

    Multidimensional Sleep and Cardiometabolic Risk Factors for Type 2 Diabetes: Examining Self-Report and Objective Dimensions of Sleep

    And no, we don’t get a free pass on getting less sleep / less good quality sleep as we get older (alas):

    Why You Probably Need More Sleep

    So, time to get planning for the best sleep!

    Enjoy videos?

    Here’s how 7News Australia broke the news of Dr. Matricciani’s more recent work:

    !

    Rest well!

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Related Posts

  • Osteoarthritis Of The Knee
  • Flossing Without Flossing?

    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.

    Flossing Without Flossing?

    You almost certainly brush your teeth. You might use mouthwash. A lot of people floss for three weeks at a time, often in January.

    There are a lot of options for oral hygiene; variations of the above, and many alternatives too. This is a big topic, so rather than try to squeeze it all in one, this will be a several-part series.

    The first part was: Toothpastes & Mouthwashes: Which Help And Which Harm?

    How important is flossing?

    Interdental cleaning is indeed pretty important, even though it may not have the heart health benefits that have been widely advertised:

    Periodontal Disease and Atherosclerotic Vascular Disease: Does the Evidence Support an Independent Association?

    However! The health of our gums is very important in and of itself, especially as we get older:

    Flossing Is Associated with Improved Oral Health in Older Adults

    But! It helps to avoid periodontal (e.g. gum) disease, not dental caries:

    Flossing for the management of periodontal diseases and dental caries in adults

    And! Most certainly it can help avoid a stack of other diseases:

    Interdental Cleaning Is Associated with Decreased Oral Disease Prevalence

    …so in short, if you’d like to have happy healthy teeth and gums, flossing is an important adjunct, and/but not a one-stop panacea.

    Is it better to floss before or after brushing?

    As you prefer. A team of scientists led by Dr. Claudia Silva studied this, and found that there was “no statistical difference between brush-floss and floss-brush”:

    Does flossing before or after brushing influence the reduction in the plaque index? A systematic review and meta-analysis

    Flossing is tedious. How do we floss without flossing?

    This is (mostly) about water-flossing! Which does for old-style floss what sonic toothbrushes to for old-style manual toothbrushes.

    If you’re unfamiliar, it means using a device that basically power-washes your teeth, but with a very narrow high-pressure jet of water.

    Do they work? Yes:

    Effects of interdental cleaning devices in preventing dental caries and periodontal diseases: a scoping review

    As for how it stacks up against traditional flossing, Liang et al. found:

    ❝In our previous single-outcome analysis, we concluded that interdental brushes and water jet devices rank highest for reducing gingival inflammation while toothpick and flossing rank last.

    In this multioutcome Bayesian network meta-analysis with equal weight on gingival inflammation and bleeding-on-probing, the surface under the cumulative ranking curve was 0.87 for water jet devices and 0.85 for interdental brushes.

    Water jet devices and interdental brushes remained the two best devices across different sets of weightings for the gingival inflammation and bleeding-on-probing.

    ~ Journal of Evidence-Based Dental Practice

    You may be wondering how safe it is if you have had dental work done, and, it appears to be quite safe, for example:

    BDJ | Water-jet flossing: effect on composites

    Want to try water-flossing?

    Here are some examples on Amazon:

    Bonus: if you haven’t tried interdental brushes, here’s an example for that

    Enjoy!

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  • Managing Jealousy

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    Jealousy is often thought of as a young people’s affliction, but it can affect us at any age—whether we are the one being jealous, or perhaps a partner.

    And, the “green-eyed monster” can really ruin a lot of things; relationships, friendships, general happiness, physical health even (per stress and anxiety and bad sleep), and more.

    The thing is, jealousy looks like one thing, but is actually mostly another.

    Jealousy is a Scooby-Doo villain

    That is to say: we can unmask it and see what much less threatening thing is underneath. Which is usually nothing more nor less than: insecurities

    • Insecurity about losing one’s partner
    • Insecurity about not being good enough
    • Insecurity about looking bad socially

    …etc. The latter, by the way, is usually the case when one’s partner is socially considered to be giving cause for jealousy, but the primary concern is not actually relational loss or any kind of infidelity, but rather, looking like one cannot keep one’s partner’s full attention romantically/sexually. This drives a lot of people to act on jealousy for the sake of appearances, in situations where if they didn’t feel like they’d be adversely judged, they might be considerable more chill.

    Thus, while monogamy certainly has its fine merits, there can also be a kind of “toxic monogamy” at hand, where a relationship becomes unhealthy because one partner is just trying to live up to social expectations of keeping the other partner in check.

    This, by the way, is something that people in polyamorous and/or open relationships typically handle quite neatly, even if a lot of the following still applies. But today, we’re making the statistically safe assumption of a monogamous relationship, and talking about that!

    How to deal with the social aspect

    If you sit down with your partner and work out in advance the acceptable parameters of your relationship, you’ll be ahead of most people already. For example…

    • What counts as cheating? Is it all and any sex acts with all and any people? If not, where’s the line?
    • What about kissing? What about touching other body parts? If there are boundaries that are important to you, talk about them. Nothing is “too obvious” because it’s astonishing how many times it will happen that later someone says (in good faith or not), “but I thought…”
    • What about being seen in various states of undress? Or seeing other people in various states of undress?
    • Is meaningless flirting between friends ok, and if so, how do we draw the line with regard to what is meaningless? And how are we defining flirting, for that matter? Talk about it and ensure you are both on the same page.
    • If a third party is possibly making moves on one of us under the guise of “just being friendly”, where and how do we draw the line between friendliness and romantic/sexual advances? What’s the difference between a lunch date with a friend and a romantic meal out for two, and how can we define the difference in a way that doesn’t rely on subjective “well I didn’t think it was romantic”?

    If all this seems like a lot of work, please bear in mind, it’s a lot more fun to cover this cheerfully as a fun couple exercise in advance, than it is to argue about it after the fact!

    See also: Boundary-Setting Beyond “No”

    How to deal with the more intrinsic insecurities

    For example, when jealousy is a sign of a partner fearing not being good enough, not measuring up, or perhaps even losing their partner.

    The key here might not shock you: communication

    Specifically, reassurance. But critically, the correct reassurance!

    A partner who is jealous will often seek the wrong reassurance, for example wanting to read their partner’s messages on their phone, or things like that. And while a natural desire when experiencing jealousy, it’s not actually helpful. Because while incriminating messages could confirm infidelity, it’s impossible to prove a negative, and if nothing incriminating is found, the jealous partner can just go on fearing the worst regardless. After all, their partner could have a burner phone somewhere, or a hidden app for cheating, or something else like that. So, no reassurance can ever be given/gained by such requests (which can also become unpleasantly controlling, which hopefully nobody wants).

    A quick note on “if you have nothing to fear, you have nothing to hide”: rhetorically that works, but practically it doesn’t.

    Writer’s example: when my late partner and I formalized our relationship, we discussed boundaries, and I expressed “so far as I am concerned, I have no secrets from you, except secrets that are not mine to share. For example, if someone has confided in me and asked that I not share it, I won’t. Aside from that, you have access-all-areas in my life; me being yours has its privileges” and this policy itself would already pre-empt any desire to read my messages. Now indeed, I had nothing to hide. I am by character devoted to a fault. But my friends may well sometimes have things they don’t want me to share, which made that a necessary boundary to highlight (which my partner, an absolute angel by the way and not overly prone to jealousy in any case, understood completely).

    So, it is best if the partner of a jealous person can explain the above principles as necessary, and offer the correct reassurance instead. Which could be any number of things, but for example:

    • I am yours, and nobody else has a chance
    • I fully intend to stay with you for life
    • You are the best partner I have ever had
    • Being with you makes my life so much better

    …etc. Note that none of these are “you don’t have to worry about so-and-so”, or “I am not cheating on you”, etc, because it’s about yours and your partner’s relationship. If they ask for reassurances with regard to other people or activities, by all means state them as appropriate, but try to keep the focus on you two.

    And if your partner (or you, if it’s you who’s jealous) can express the insecurity in the format…

    “I’m afraid of _____ because _____”

    …then the “because” will allow for much more specific reassurance. We all have insecurities, we all have reasons we might fear not being good enough for our partner, or losing their affection, and the best thing we can do is choose to trust our partners at least enough to discuss those fears openly with each other.

    See also: Save Time With Better Communication ← this can avoid a lot of time-consuming arguments

    What about if the insecurity is based in something demonstrably correct?

    By this we mean, something like a prior history of cheating, or other reasons for trust issues. In such a case, the jealous partner may well have a reason for their jealousy that isn’t based on a personal insecurity.

    In our previous article about boundaries, we talked about relationships (romantic or otherwise) having a “price of entry”. In this case, you each have a “price of entry”:

    • The “price of entry” to being with the person who has previously cheated (or similar), is being able to accept that.
    • And for the person who cheated (or similar), very likely their partner will have the “price of entry” of “don’t do that again, and also meanwhile accept in good grace that I might be jittery about it”.

    And, if the betrayal of trust was something that happened between the current partners in the current relationship, most likely that was also traumatic for the person whose trust was betrayed. Many people in that situation find that trust can indeed be rebuilt, but slowly, and the pain itself may also need treatment (such as therapy and/or couples therapy specifically).

    See also: Relationships: When To Stick It Out & When To Call It Quits ← this covers both sides

    And finally, to finish on a happy note:

    Only One Kind Of Relationship Promotes Longevity This Much!

    Take care!

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  • The “Love Drug”

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    Get PEA-Brained!

    Today we’ll be looking at phenylethylamine, or PEA, to its friends.

    Not to be mistaken for the related amino acid phenylalanine! Both ultimately have effects on the dopaminergic system, but the process and benefits are mostly quite different.

    We thought we’d do this one in the week of Valentine’s Day, because of its popular association with love:

    ❝Phenylethylamine (PEA), an amphetamine-like substance that has been alluringly labeled the “chemical of love,” makes the best case for the love-chocolate connection since it has been shown that people in love may actually have higher levels of PEA in their brain, as surmised from the fact that their urine is richer in a metabolite of this compound. In other words, people thrashing around in the throes of love pee differently from others.❞

    Source: Office for Science and Society | The Chemical of Love

    What is it?

    It’s an amino acid. Because we are mammals, we can synthesize it inside our bodies, so it’s not considered an “essential amino acid”, i.e. one that we need to get from our diet. It is found in some foods, though, including:

    • Other animals, especially other mammals
    • Various beans, legumes, nuts, seeds. In particular almonds, soybeans, lentils, and chickpeas score highly
    • Fermented foods
    • Chocolate (popular lore holds this to be a good source of PEA; science finds it to be a fair option, but not in the same ballpark as the other items)

    Fun fact: the reason Marvel’s Venom has a penchant for eating humans and chocolate is (according to the comics) because phenylethylamine is an essential amino acid for it.

    What does it do for us?

    It’s a Central Nervous System (CNS) stimulant, and also helps us synthesize critical neurotransmitters such as dopamine, norepinephrine (adrenaline) and serotonin:

    β-Phenylethylamine Alters Monoamine Transporter Function via Trace Amine-Associated Receptor 1: Implication for Modulatory Roles of Trace Amines in Brain

    It works similarly, but not identically, to amphetamines:

    Amphetamine potentiates the effects of β-phenylethylamine through activation of an amine-gated chloride channel

    Is it safe?

    We normally do this after the benefits, but “it works similarly to amphetamines” may raise an eyebrow or two, so let’s do it here:

    • It is recommended to take no more than 500mg/day, with 100mg–500mg being typical doses
    • It is not recommended to take it at all if you have, or have a predisposition to, any kind of psychotic disorder (especially schizophrenia, or bipolar disorder wherein you sometimes experience mania)
      • This isn’t a risk for most people, but if you fall into the above category, the elevated dopamine levels could nudge you into a psychotic/manic episode that you probably don’t want.

    See for example: Does phenylethylamine cause schizophrenia?

    There are other contraindications too, so speak with your doctor/pharmacist before trying it.

    On the other hand, if you are considering ADHD medication, then phenylethylamine could be a safer thing to try first, to see if it helps, before going to the heavy guns of actual amphetamines (as are commonly prescribed for ADHD). Same goes for depression and antidepressants.

    What can I expect from PEA?

    More dopamine, norepinephrine, and serotonin. Mostly the former two. Which means, you can expect stimulation.

    For focus and attention, it’s so effective that it has been suggested (as we mentioned above) as a safer alternative to ADHD meds:

    β-phenylethylamine, a small molecule with a large impact

    …and may give similar benefits to people without ADHD, namely improved focus, attention, and mental stamina:

    Integrative Psychiatry | The Many Health Benefits of Phenylethylamine (PEA) – The Brain’s Natural Stimulant

    It also improves mood:

    ❝Phenylethylamine (PEA), an endogenous neuroamine, increases attention and activity in animals and has been shown to relieve depression in 60% of depressed patients. It has been proposed that PEA deficit may be the cause of a common form of depressive illness.

    Effective dosage did not change with time. There were no apparent side effects. PEA produces sustained relief of depression in a significant number of patients, including some unresponsive to the standard treatments. PEA improves mood as rapidly as amphetamine but does not produce tolerance.

    ~ Dr. Sabelli et al.

    Source: Sustained antidepressant effect of PEA replacement

    Where can I get it?

    We don’t sell it, but here is an example product on Amazon for your convenience

    Enjoy!

    Don’t Forget…

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