What Teas To Drink Before Bed (By Science!)

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Which Sleepy Tea?

Herbal “tea” preparations (henceforth we will write it without the quotation marks, although these are not true teas) are popular for winding down at the end of a long day ready for a relaxing sleep.

Today we’ll look at the science for them! We’ll be brief for each, because we’ve selected five and have only so much room, but here goes:

Camomile

Simply put, it works and has plenty of good science for it. Here’s just one example:

❝Noteworthy, our meta-analysis showed a significant improvement in sleep quality after chamomile administration❞

~ Dr. Hieu et al.

Therapeutic efficacy and safety of chamomile for state anxiety, generalized anxiety disorder, insomnia, and sleep quality: A systematic review and meta-analysis of randomized trials and quasi-randomized trials

Also this writer’s favourite relaxation drink!

(example on Amazon if you want some)

Lavender

We didn’t find robust science for its popularly-claimed sedative properties, but it does appear to be anxiolytic, and anxiety gets in the way of sleep, so while lavender may not be a sedative, it may calm a racing mind all the same, thus facilitating better sleep:

The effect of lavender herbal tea on the anxiety and depression of the elderly: A randomized clinical trial

(example on Amazon if you want some)

Magnolia

Animal study for the mechanism:

Magnolol, a major bioactive constituent of the bark of Magnolia officinalis, induces sleep via the benzodiazepine site of GABA(A) receptor in mice

Human study for “it is observed to help humans sleep better”:

A randomized controlled pilot study of the effectiveness of magnolia tea on alleviating depression in postnatal women

As you can see from the title, its sedative properties weren’t the point of the study, but if you click through to read it, you can see that they found (and recorded) this benefit anyway

(example on Amazon if you want some)

Passionflower

There’s not a lot of evidence for this one, but there is some. Here’s a small study (n=41) that found:

❝Of six sleep-diary measures analysed, sleep quality showed a significantly better rating for passionflower compared with placebo (t(40) = 2.70, p < 0.01). These initial findings suggest that the consumption of a low dose of Passiflora incarnata, in the form of tea, yields short-term subjective sleep benefits for healthy adults with mild fluctuations in sleep quality.❞

~ Dr. Ngan & Dr. Conduit

A double-blind, placebo-controlled investigation of the effects of Passiflora incarnata (passionflower) herbal tea on subjective sleep quality

So, that’s not exactly a huge body of evidence, but it is promising.

(example on Amazon if you want some)

Valerian

We’ll be honest, the science for this one is sloppy. It’s very rare to find Valerian tested by itself (or sold by itself; we had to dig a bit to find one for the Amazon link below), and that skews the results of science and renders any conclusions questionable.

And the studies that were done? Dubious methods, and inconclusive results:

Valerian Root in Treating Sleep Problems and Associated Disorders-A Systematic Review and Meta-Analysis

Nevertheless, if you want to try it for yourself, you can do a case study (i.e., n=1 sample) if not a randomized controlled trial, and let us know how it goes 🙂

(example on Amazon if you want some)

Summary

  • Valerian we really don’t have the science to say anything about it
  • Passionflower has some nascent science for it, but not much
  • Lavender is probably not soporific, but it is anxiolytic
  • Magnolia almost certainly helps, but isn’t nearly so well-backed as…
  • Camomile comes out on top, easily—by both sheer weight of evidence, and by clear conclusive uncontroversial results.

Enjoy!

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  • Yes, you do need to clean your tongue. Here’s how and why

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    Has your doctor asked you to stick out your tongue and say “aaah”? While the GP assesses your throat, they’re also checking out your tongue, which can reveal a lot about your health.

    The doctor will look for any changes in the tongue’s surface or how it moves. This can indicate issues in the mouth itself, as well as the state of your overall health and immunity.

    But there’s no need to wait for a trip to the doctor. Cleaning your tongue twice a day can help you check how your tongue looks and feels – and improve your breath.

    luisrsphoto/Shutterstock

    What does a healthy tongue look like?

    Our tongue plays a crucial role in eating, talking and other vital functions. It is not a single muscle but rather a muscular organ, made up of eight muscle pairs that help it move.

    The surface of the tongue is covered by tiny bumps that can be seen and felt, called papillae, giving it a rough surface.

    These are sometimes mistaken for taste buds – they’re not. Of your 200,000-300,000 papillae, only a small fraction contain taste buds. Adults have up to 10,000 taste buds and they are invisible to the naked eye, concentrated mainly on the tip, sides and back of the tongue. https://www.youtube.com/embed/uYvpUl7li9Y?wmode=transparent&start=0

    A healthy tongue is pink although the shade may vary from person to person, ranging from dark to light pink.

    A small amount of white coating can be normal. But significant changes or discolouration may indicate a disease or other issues.

    How should I clean my tongue?

    Cleaning your tongue only takes around 10-15 seconds, but it’s is a good way to check in with your health and can easily be incorporated into your teeth brushing routine.

    A toothbrush and a silver tongue scraper on an orange background.
    Build-up can occur if you stop brushing or scraping your tongue even for a few days. Anthony Shkraba/Pexels

    You can clean your tongue by gently scrubbing it with a regular toothbrush. This dislodges any food debris and helps prevent microbes building up on its rough textured surface.

    Or you can use a special tongue scraper. These curved instruments are made of metal or plastic, and can be used alone or accompanied by scrubbing with your toothbrush.

    Your co-workers will thank you as well – cleaning your tongue can help combat stinky breath. Tongue scrapers are particularly effective at removing the bacteria that commonly causes bad breath, hidden in the tongue’s surface.

    What’s that stuff on my tongue?

    So, you’re checking your tongue during your twice-daily clean, and you notice something different. Noting these signs is the first step. If you observe any changes and they worry you, you should talk to your GP.

    Here’s what your tongue might be telling you.

    White coating

    Developing a white coating on the tongue’s surface is one of the most common changes in healthy people. This can happen if you stop brushing or scraping the tongue, even for a few days.

    In this case, food debris and microbes have accumulated and caused plaque. Gentle scrubbing or scraping will remove this coating. Removing microbes reduces the risk of chronic infections, which can be transferred to other organs and cause serious illnesses.

    Two young men laughing while they brush their teeth.
    Scrubbing or scraping your tongue only takes around ten seconds and can be done while brushing your teeth. Ketut Subiyanto/Pexels

    Yellow coating

    This may indicate oral thrush, a fungal infection that leaves a raw surface when scrubbed.

    Oral thrush is common in elderly people who take multiple medications or have diabetes. It can also affect children and young adults after an illness, due to the temporary suppression of the immune system or antibiotic use.

    If you have oral thrush, a doctor will usually prescribe a course of anti-fungal medication for at least a month.

    Black coating

    Smoking or consuming a lot of strong-coloured food and drink – such as tea and coffee, or dishes with tumeric – can cause a furry appearance. This is known as a black hairy tongue. It’s not hair, but an overgrowth of bacteria which may indicate poor oral hygiene.

    Smoke wafting from a cigarette in a woman's hand.
    Smoking can add to poor oral hygiene and make the tongue look black. Sophon Nawit/Shutterstock

    Pink patches

    Pink patches surrounded by a white border can make your tongue look like a map – this is called “geographic tongue”. It’s not known what causes this condition, which usually doesn’t require treatment.

    Pain and inflammation

    A red, sore tongue can indicate a range of issues, including:

    Dryness

    Many medications can cause dry mouth, also called xerostomia. These include antidepressants, anti-psychotics, muscle relaxants, pain killers, antihistamines and diuretics. If your mouth is very dry, it may hurt.

    What about cancer?

    White or red patches on the tongue that can’t be scraped off, are long-standing or growing need to checked out by a dental professional as soon as possible, as do painless ulcers. These are at a higher risk of turning into cancer, compared to other parts of the mouth.

    Oral cancers have low survival rates due to delayed detection – and they are on the rise. So checking your tongue for changes in colour, texture, sore spots or ulcers is critical.

    Dileep Sharma, Professor and Head of Discipline – Oral Health, University of Newcastle

    This article is republished from The Conversation under a Creative Commons license. Read the original article.

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  • You’ve Got Questions? We’ve Got Answers!

    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.

    From Cucumbers To Kindles

    Q: Where do I get cucumber extract?

    A: You can buy it from BulkSupplements.com (who, despite their name, start at 100g packs)

    Alternatively: you want it as a topical ointment (for skin health) rather than as a dietary supplement (for bone and joint health), you can extract it yourself! No, it’s not “just juice cucumbers”, but it’s also not too tricky.

    Click Here For A Quick How-To Guide!

    Q: Tips for reading more and managing time for it?

    A: We talked about this a little bit in yesterday’s edition, so you may have seen that, but aside from that:

    • If you don’t already have one, consider getting a Kindle or similar e-reader. They’re very convenient, and also very light and ergonomicno more wrist strain as can occur with physical books. No more eye-strain, either!
    • Consider making reading a specific part of your daily routine. A chapter before bed can be a nice wind-down, for instance! What’s important is it’s a part of your day that’ll always, or at least almost always, allow you to do a little reading.
    • If you drive, walk, run, or similar each day, a lot of people find that’s a great time to listen to an audiobook. Please be safe, though!
    • If your lifestyle permits such, a “reading retreat” can be a wonderful vacation! Even if you only “retreat” to your bedroom, the point is that it’s a weekend (or more!) that you block off from all other commitments, and curl up with the book(s) of your choice.

    Q: Any study tips as we approach exam season? A lot of the productivity stuff is based on working life, but I can’t be the only student!

    A: We’ve got you covered:

    • Be passionate about your subject! We know of no greater study tip than that.
    • Find a willing person and lecture them on your subject. When one teaches, two learn!
    • Your mileage may vary depending on your subject, but, find a way of studying that’s fun to you!
    • If you can get past papers, get as many as you can, and use those as your “last minute” studying in the week before your exam(s). This will prime you for answering exam-style questions (and leverage state-dependent memory). As a bonus, it’ll also help ease any anxiety, because by the time of your exam it’ll be “same old, same old”!

    Q: Energy drinks for biohacking, yea or nay?

    A: This is definitely one of those “the dose makes the poison” things!

    But… The generally agreed safe dose of taurine is around 3g/day for most people; a standard Red Bull contains 1g.

    That math would be simple, but… if you eat meat (including poultry or fish), that can also contain 10–950mg per 100g. For example, tuna is at the high end of that scale, with a standard 12oz (340g) tin already containing up to 3.23g of taurine!

    And sweetened carbonated beverages in general have so many health issues that it’d take us a full article to cover them.

    Short version? Enjoy in moderation if you must, but there are definitely better ways of getting the benefits they may offer.

    Q: Best morning routine?

    A: The best morning routine is whatever makes you feel most ready to take on your day!

    This one’s going to vary a lot—one person’s morning run could be another person’s morning coffee and newspaper, for example.

    In a nutshell, though, ask yourself these questions:

    • How long does it take me to fully wake up in the morning, and what helps or hinders that?
    • When I get out of bed, what do I really need before I can take on my day?
    • If I could have the perfect morning, what would it look like?
    • What can evening me do, to look after morning me’s best interests? (Semi-prepare breakfast ready? Lay out clothes ready? Running shoes? To-Do list?)

    Q: I’m curious how much of these things you actually use yourselves, and are there any disagreements in the team? In a lot of places things can get pretty heated when it’s paleo vs vegan / health benefits of tea/coffee vs caffeine-abstainers / you need this much sleep vs rise and grinders, etc?

    A: We are indeed genuinely enthusiastic about health and productivity, and that definitely includes our own! We may or may not all do everything, but between us, we probably have it all covered. As for disagreements, we’ve not done a survey, but if you take an evidence-based approach, any conflict will tend to be minimized. Plus, sometimes you can have the best of both!

    • You could have a vegan paleo diet (you’d better love coconut if you do, though!
    • There is decaffeinated coffee and tea (your taste may vary)
    • You can get plenty of sleep and rise early (so long as an “early to bed, early to rise” schedule suits you!)

    Interesting note: humans are social creatures on an evolutionary level. Evolution has resulted in half of us being “night owls” and the other half “morning larks”, the better to keep each other safe while sleeping. Alas, modern life doesn’t always allow us to have the sleep schedule that’d suit each of us best individually!

    Have a question you’d like answered? Reply to this email, or use the feedback widget at the bottom! We always love to hear from you

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  • Oats vs Pearl Barley – 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 oats to pearl barley, we picked the oats.

    Why?

    In terms of macronutrients first, pearl barley has about three times the carbs for only the same amount of protein and fiber—if it had been regular barley rather than pearl parley, it’d have about twice the fiber, but pearl barley has had the fibrous husk removed.

    Vitamins really set the two part, though: oats have a lot more (60x more) vitamin A, and notably more of vitamins B1, B2, B3, B5, B6, and B9, as well as 6x more vitamin E. In contrast, pearl barley has a little more vitamin K and choline. An easy win for oats in this section.

    In the category of minerals, oats have over 6x more calcium, 3x more iron, and a little more magnesium, manganese, and phosphorus. Meanwhile, pearl barley boats a little more copper, potassium, selenium, and zinc. So, a more moderate win for oats in this category.

    They are both very good for the gut, unless you have a gluten intolerance/allergy, in which case, oats are the only answer here since pearl barley, as per barley in general, has gluten as its main protein (oats, meanwhile, do not contain gluten, unless by cross-contamination).

    Adding up all the sections, this one’s a clear win for oats.

    Want to learn more?

    You might like to read:

    Take care!

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  • CBD Against Diabetes!

    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? We love to hear from you!

    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

    ❝CBD for diabetes! I’ve taken CBD for body pain. Did no good. Didn’t pay attention as to diabetes. I’m type 1 for 62 years. Any ideas?❞

    Thanks for asking! First up, for reference, here’s our previous main feature on the topic of CBD:

    CBD Oil: What Does The Science Say?

    There, we touched on CBD’s effects re diabetes:

    in mice / in vitro / in humans

    In summary, according to the above studies, it…

    • lowered incidence of diabetes in non-obese diabetic mice. By this they mean that pancreatic function improved (reduced insulitis and reduced inflammatory Th1-associated cytokine production). Obviously this has strong implications for Type 1 Diabetes in humans—but so far, just that, implications (because you are not a mouse).
    • attenuated high glucose-induced endothelial cell inflammatory response and barrier disruption. Again, this is promising, but it was an in vitro study in very controlled lab conditions, and sometimes “what happens in the Petri dish, stays in the Petri dish”—in order words, these results may or may not translate to actual living humans.
    • Improved insulin response ← is the main take-away that we got from reading through their numerical results, since there was no convenient conclusion given. Superficially, this may be of more interest to those with type 2 diabetes, but then again, if you have T1D and then acquire insulin resistance on top of that, you stand a good chance of dying on account of your exogenous insulin no longer working. In the case of T2D, “the pancreas will provide” (more or less), T1D, not so much.

    So, what else is there out there?

    The American Diabetes Association does not give a glowing review:

    ❝There’s a lot of hype surrounding CBD oil and diabetes. There is no noticeable effect on blood glucose (blood sugar) or insulin levels in people with type 2 diabetes. Researchers continue to study the effects of CBD on diabetes in animal studies. ❞

    ~ American Diabetes Association

    Source: ADA | CBD & Diabetes

    Of course, that’s type 2, but most research out there is for type 2, or else have been in vitro or rodent studies (and not many of those, at that).

    Here’s a relatively more recent study that echoes the results of the previous mouse study we mentioned; it found:

    ❝CBD-treated non-obese diabetic mice developed T1D later and showed significantly reduced leukocyte activation and increased FCD in the pancreatic microcirculation.

    Conclusions: Experimental CBD treatment reduced markers of inflammation in the microcirculation of the pancreas studied by intravital microscopy. ❞

    ~ Dr. Christian Lehmann et al.

    Read more: Experimental cannabidiol treatment reduces early pancreatic inflammation in type 1 diabetes

    …and here’s a 2020 study (so, more recent again) that was this time rats, and/but still more promising, insofar as it was with rats that had full-blown T1D already:

    Read in full: Two-weeks treatment with cannabidiol improves biophysical and behavioral deficits associated with experimental type-1 diabetes

    Finally, a paper in July 2023 (so, since our previous article about CBD), looked at the benefits of CBD against diabetes-related complications (so, applicable to most people with any kind of diabetes), and concluded:

    ❝CBDis of great value in the treatment of diabetes and its complications. CBD can improve pancreatic islet function, reduce pancreatic inflammation and improve insulin resistance. For diabetic complications, CBD not only has a preventive effect but also has a therapeutic value for existing diabetic complications and improves the function of target organs

    ~ Dr. Jin Zhang et al.

    …before continuing:

    ❝However, the safety and effectiveness of CBD are still needed to prove. It should be acknowledged that the clinical application of CBD in the treatment of diabetes and its complications has a long way to go.

    The dissecting of the pharmacology and therapeutic role of CBD in diabetes would guide the future development of CBD-based therapeutics for treating diabetes and diabetic complications❞

    ~ Ibid.

    Now, the first part of that is standard ass-covering, and the second part of that is standard “please fund more studies please”. Nevertheless, we must also not fail to take heed—little is guaranteed, especially when it comes to an area of research where the science is still very young.

    In summary…

    It seems well worth a try, and with ostensibly nothing to lose except the financial cost of the CBD.

    If you do, you might want to keep careful track of a) your usual diabetes metrics (blood sugar levels before and after meals, insulin taken), and b) when you took CBD, what dose, etc, so you can do some citizen science here.

    Lastly: please remember our standard disclaimer; we are not doctors, let alone your doctors, so please do check with your endocrinologist before undertaking any such changes!

    Want to read more?

    You might like our previous main feature:

    How To Prevent And Reverse Type 2 Diabetes ← obviously this will not prevent or reverse Type 1 Diabetes, but avoiding insulin resistance is good in any case!

    If you’re not diabetic and you’ve perhaps been confused throughout this article, then firstly thank you for your patience, and secondly you might like this quick primer:

    The Sweet Truth About Diabetes: Debunking Diabetes Myths! ← this gives a simplified but fair overview of types 1 & 2

    (for space, we didn’t cover the much less common types 3 & 4; perhaps another time we will)

    Meanwhile, take care!

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  • Grapefruit vs Orange – 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 grapefruit to orange, we picked the orange.

    Why?

    It’s easy, when guessing which is the healthier out of two things, to guess that the more expensive or perhaps less universally available one is the healthier. But it’s not always so, and today is one of those cases!

    In terms of macros, they are very similar fruits, with almost identical levels of carbohydrates, proteins, and fats, as well as water. Looking more carefully, we find that grapefruit’s sugars contain a slightly high proportion of fructose; not enough to make it unhealthy by any means (indeed, no whole unprocessed fruit is unhealthy unless it’s literally poisonous), but it is a thing to note if we’re micro-analysing the macronutrients. Also, oranges have slightly more fiber, which is always a plus.

    When it comes to vitamins, oranges stand out with more of vitamins B1, B2, B3, B6, B9, C, and E, while grapefruit boasts more vitamin A (hence its color). Still, we’re calling this category another win for oranges.

    In the category of minerals, oranges again sweep with more calcium, copper, iron, magnesium, manganese, potassium, and selenium, while grapefruit has just a little more phosphorus. So, another easy win for oranges.

    One final consideration that’s not shown in the nutritional values, is that grapefruit contains furanocoumarin, which can inhibit cytochrome P-450 3A4 isoenzyme and P-glycoptrotein transporters in the intestine and liver—slowing down their drug metabolism capabilities, thus effectively increasing the bioavailability of many drugs manifold. It can also be found in lower quantities in Seville (sour) oranges, and it’s not present (or at least, if it is, it’s in truly tiny quantities) in most oranges.

    This may sound superficially like a good thing (improving bioavailability of things we want), but in practice it means that in the case of many drugs, if you take them with (or near in time to) grapefruit or grapefruit juice, then congratulations, you just took an overdose. This happens with a lot of meds for blood pressure, cholesterol (including statins), calcium channel-blockers, anti-depressants, benzo-family drugs, beta-blockers, and more. Oh, and Viagra, too. Which latter might sound funny, but remember, Viagra’s mechanism of action is blood pressure modulation, and that is not something you want to mess around with unduly. So, do check with your pharmacist to know if you’re on any meds that would be affected by grapefruit or grapefruit juice!

    All in all, today’s sections add up to an overwhelming win for oranges!

    Want to learn more?

    You might like to read:

    Take care!

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  • Lifespan – by Dr. David Sinclair

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    Some books on longevity are science-heavy and heavy-going; others are glorified manifestos with much philosophy but little practical.

    This one’s a sciencey-book written for a lay reader. It’s heavily referenced, but not a challenging read.

    This book is divided into three parts:

    1. What we know (the past)
    2. What we’re learning (the present)
    3. Where we’re going (the future)

    Let us quickly mention: the last part is principally sociology and economics, which are not the author’s wheelhouse. Some readers may enjoy his thoughts regardless, but we’re going to concentrate on where we found the real value of the book to be: in the first and second parts, where he brings his expertise to bear.

    The first part lays the foundational knowledge that’s critical for understanding why the second part is so important.

    Basically: aging is a genetic disease, and diseases can be cured. No disease has magical properties, even if sometimes it can seem for a while like they do, until we understand them better.

    The second part covers a lot of recent and contemporary research into aging. We learn about such things as NAD-agonists that make elderly mice biologically young again, and the Greenland shark that easily lives for 500 years or so (currently the record-holder for vertebrates). And of course, biologically immortal jellyfish.

    It’s not all animal studies though…

    We learn of how NAD-agonists such as NMN have been promising in human studies too, along with resveratrol and the humble diabetes drug, metformin. These things alone may have the power to extend healthy life by 20%

    Other recommendations pertain to lifestyle; the usual five things (diet, exercise, sleep, no alcohol, no smoking), as well as intermittent fasting and cryotherapy (cold showers/baths).

    Bottom line: this book is informative and inspiring, and if you’ve been looking for an “in” to understanding the world of biogerontology and/or anti-aging research, this is it.

    Get your copy of “Lifespan: Why We Age—And Why We Don’t Have To” from Amazon today!

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    Learn to Age Gracefully

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