GABA Against Stress/Anxiety
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A Neurotransmitter Less Talked-About
GABA is taken by many people as a supplement, mostly as a mood modifier, though its health claims go beyond the recreational—and also, we’re of the opinion that mental health is also just health, and if it works, it works. We’ll explore some of the claims and science behind them today…
What is GABA?
GABA stands for gamma-aminobutyric acid, and it’s a neurotransmitter. It’s a lot less talked-about than for example dopamine or serotonin, but it’s very important nonetheless.
We make it ourselves inside our body, and we can also get it from our food, or supplement it, and some drugs will also have an effect on its presence and/or activity in our body.
What foods is it found in?
- Animals, obviously (just like in human brains*)
- Fermented foods (many kinds)
- Yeast
- Tea
- Tomatoes
- Mulberries
For more details, see:
γ-Aminobutyric acid found in fermented foods and beverages: current trends
*However, we do not recommend eating human brains, due to the risk of CJD and prion diseases in general.
What claims are made about it and are they true?
For brevity, we’ll give a little spoiler up-front: all the popular claims for it appear to be valid, though there’s definitely room for a lot more human trials (we skipped over a lot of rodent studies today!).
So we’ll just drop some of its main benefits, and human studies to back those.
Reduction of stress and anxiety
GABA decreases task-related stress and anxiety within 30 minutes of being taken, both in subjective measures (i.e., self-reports) and in objective clinical physiological measures:
Cognitive enhancement
It’s not a does-everything nootropic like some, but it does have clear benefits to episodic memory:
❝GABA intake might help to distribute limited attentional resources more efficiently, and can specifically improve the identification and ordering of visual events that occur in close temporal succession❞
One of the things that makes this one important is that it also deals with the often-asked question of “does GABA pass the blood-brain barrier”:
❝The present findings do give further credence to the idea that oral ingestion does allow GABA to reach the brain and exert direct effects on cognition, which in the present case were specific to temporal attention.❞
Read more:
Supplementation of gamma-aminobutyric acid (GABA) affects temporal, but not spatial visual attention
Potential for more
We take care to give good quality sources, so the following study comes with a big caveat that it has since been retracted. Why was it retracted, you wonder?
It’s about the sample; they cite “30 healthy adults”, but neglected tp mention that this figure was initially 46. What happened to the other 16 participants is unclear, but given that this was challenged and the challenge not answered, it was sufficient for the journal (Nature) to pull the study, in case of deliberate sample bias.
However! Running the numbers in their results section, a probability of 0.03 is very compelling unless the disappearance of 16 subjects was outright fraudulent (which we regrettably cannot know either way).
Here’s the study (so take it with a pinch of salt, considering the above), and taken at face value, it shows how GABA supplementation improves accurate reactions to fast-moving visual and auditory stimuli:
RETRACTED ARTICLE: γ-Aminobutyric acid (GABA) administration improves action selection processes: a randomised controlled trial
…so, hopefully this experiment will be repeated, without disappearing participants!
The sweet spot
You may be wondering how something that slows a person down (having a relaxing effect) can also speed a person up. This has to do with what it is and isn’t affecting; think of it like a “focus mode” on your computer or other device that greys-out everything else a bit so that you can focus on what you’re doing.
It’s in some ways (by different neurochemical pathways, though) a similar effect to the “relaxed alertness” created by l-theanine supplementation.
There’s also a sweet spot whereby GABA is toning some things down just the right amount, without adversely affecting performance in areas we don’t want slowed down. For the science of this, see:
Is it safe?
GABA is “Generally Recognized As Safe”. However:
- you should speak with your pharmacist if you are taking any medications for blood pressure or epilepsy, as GABA supplementation may cause them to work too well.
- you should absolutely not take GABA with alcohol or opioids as (dose-dependent for all the substances involved, and also depending on your metabolic base rate and other factors) its acute depression of the CNS can mean you relax and slow down too much, and you may find yourself not breathing often enough to sustain life.
Aside from that, it is considered safe up to at least 1g/kg/day*. Given that popular doses are 120–750mg, and most people weigh more than 750g, this is very safe for most people:
United States Pharmacopeia (USP) Safety Review of Gamma-Aminobutyric Acid (GABA)
Where can I get it?
We don’t sell it, but for your convenience, here’s an example product on Amazon
Enjoy!
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Becoming a Supple Leopard – by Dr. Kelly Starrett and Glen Cordoza
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We’ve previously reviewed Dr. Starrett’s other book, “Built To Move“, and now today we’ll review his more famous book!
Why is this one so famous? It’s popularly considered “the Bible of Cross-Fit”, even though it’s not at all marketed as such, and nor does it talk about Cross Fit directly. But: people who are interested in being fit, fast, strong, mobile, stable, and so forth, tend to invest in this book at some point if they are serious.
The book is big, heavy, and textbook-like. This isn’t a quick light read. This is a “study over the course of a year or more while doing your physiotherapy degree” book. And yet, it’s written for the widest audience, and as such, everything is explained from the ground up, so no prior knowledge is expected.
It does have pictures, which are clear and helpful, though the print version is better for this than the Kindle edition.
The subtitle of the book is no lie; it does indeed cover all those things, deeply and at length, for everything musculoskeletal.
Bottom line: this book will seriously improve your knowledge and understanding of all things body mechanics and related body maintenance. If you care to get/remain fit/strong/mobile/etc, this book is a fine cornerstone for such endeavors.
Click here to check out Becoming A Supple Leopard, and become a supple leopard!*
*Metaphorically. Furry metamorphosis is not a side-effect. Suppleness, however, is on offer. Yes, even for you, dear reader!
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Soy Allergy? No Problem! Turn Any Legume Into Tofu (Here’s How)
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Legumes have similar chemical composition, which means they can generally be used in the same ways as each other:
Variety is the spice of life
In the video, he demonstrates this with green peas, red lentils, and green lentils, and mentions that it is the same for chickpeas too. The process is:
- Soak 100g dried legumes overnight in plenty of water.
- Drain and blend with 250ml fresh water until smooth.
- Pour into a nonstick frying pan, add ½ tsp salt, and stir.
- Cook until it thickens into a paste, then cook for another 2–3 minutes on low heat.
- Transfer to a 500ml mold, smooth the top, and set in the fridge for 1 hour.
- If properly set, it can be eaten as-is or fried into crispy cubes.
- Stir-fry tofu with: ginger, spring onions, garlic, and chili.
- Sauce: suggestions include soy sauce, rice wine vinegar, mirin, sesame oil.
- Garnish with: sesame and coriander seeds
Science behind it: heating alters protein bonds and starches, forming a thick paste that sets.
Note: legumes contain natural toxins that are destroyed by cooking. For some, like those mentioned above, frying for a few minutes is sufficient. However, kidney beans are high in phytohemagglutinin, which requires at least 20 minutes of cooking to be safe, making them unsuitable for this process.
For more on all of this, plus visual demonstrations, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Six Ways To Eat For Healthier Skin
Take care!
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A Tale Of Two Cinnamons
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Cinnamon’s Health Benefits (But Watch Out!)
Cinnamon is enjoyed for its sweet and punchy flavor. It also has important health properties!
Let’s take a look at the science…
A Tale Of Two Cinnamons
In your local supermarket, there is likely “cinnamon” and if you’re lucky, also “sweet cinnamon”. The difference between these is critical to understand before we continue:
“Cinnamon” = Cinnamomum cassia or Cinnamomum aromaticum. This is cheapest and most readily available. It has a relatively high cinnamaldehyde content, and a high coumarin content.
“Sweet cinnamon” Cinnamomum verum or Cinnamomum zeylanicum. It has a lower cinnamaldehyde content, and/but a much lower (almost undetectable) coumarin content.
You may be wondering: what’s with the “or” in both of those cases? Each simply has two botanical names in use. It’s inconvenient and confusing, but that’s how it is.
Great! What’s cinnamaldehyde and what’s coumarin?
Cinnamaldehyde is what gives cinnamon its “spice” aspect; it’s strong and fragrant. It also gives cinnamon most of its health benefits.
As a quick aside: it’s also used as the flavoring element in cinnamon flavored vapes, and in that form, it can cause health problems. So do eat it, but we recommend not to vape it.
Coumarin is toxic in large quantities.
The recommended safe amount is 0.1mg/kg, so you could easily go over this with a couple of teaspoons of cassia cinnamon:
Toxicology and risk assessment of coumarin: focus on human data
…while in Sweet/True/Ceylon cinnamon, those levels are almost undetectable:
Medicinal properties of ‘true’ cinnamon (Cinnamomum zeylanicum): a systematic review
If you have a cinnamon sensitivity, it is likely, but not necessarily, tied to the coumarin content rather than the cinnamaldehyde content.
Summary of this section before moving on:
“Cinnamon”, or cassia cinnamon, has about 50% stronger health benefits than “Sweet Cinnamon”, also called Ceylon cinnamon.
“Cinnamon”, or cassia cinnamon, has about 250% stronger health risks than “Sweet Cinnamon”, also called Ceylon cinnamon.
The mathematics here is quite simple; sweet cinnamon is the preferred way to go.
The Health Benefits
We spent a lot of time/space today looking at the differences. We think this was not only worth it, but necessary. However, that leaves us with less time/space for discussing the actual benefits. We’ll summarize, with links to supporting science:
“Those three things that almost always go together”:
Heart and blood benefits:
- Reduces triglyceride levels
- Reduces high blood pressure
- Reduces insulin insensitivity
- Reduces fasting blood sugar levels
Neuroprotective benefits:
The science does need more testing in these latter two, though.
Where to get it?
You may be able to find sweet cinnamon in your local supermarket, or if you prefer capsule form, here’s an example product on Amazon
Enjoy!
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Easy Ways To Fix Brittle, Dry, Wiry Hair
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Dr. Sam Ellis, a dermatologist, specializes in skin, hair, and nail care—and she’s here with professional knowledge:
Tackling the problem at the root
As we age, hair becomes less shiny, more brittle, coarse, wiry, or gray. More concerningly for many, hair thinning and shedding increases due to shortened growth phases and hormonal changes.
The first set of symptoms there are largely because sebum production decreases, leading to dry hair. It’s worth bearing in mind though, that factors like UV radiation, smoking, stress, and genetics contribute to hair aging too. So while we can’t do much about genetics, the modifiable factors are worth addressing.
Menopause and the corresponding “andropause” impact hair health, and hormonal shifts, not just aging, drive many hair changes. Which is good to know, because it means that HRT (mostly: topping up estrogen or testosterone as appropriate) can make a big difference. Additionally, topical/oral minoxidil and DHT blockers (such as finasteride or dutasteride) can boost hair density. These things come with caveats though, so do research any possible treatment plan before embarking on it, to be sure you are comfortable with all aspects of it—including that if you use minoxidil, while on the one hand it indeed works wonders, on the other hand, you’ll then have to keep using minoxidil for the rest of your life or your hair will fall out when you stop. So, that’s a commitment to be thought through before beginning.
Nutritional deficiencies (iron, zinc, vitamin D) and insufficient protein intake hinder hair growth, so ensure proper nutrition, with sufficient protein and micronutrients.
While we’re on the topic of “from the inside” things: take care to manage stress healthily, as stress negatively affects hair health.
Now, as for “from the outside”…
Dr. Ellis recommends moisturizing shampoos/conditioners; Virtue and Dove brands she mentions positively. She also recommends bond repair products (such as K18 and Olaplex) that restore hair integrity, and heat protectants (she recommends: Unite 7 Seconds) as well as hair oils in general that improve hair condition.
For more on all of this, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Take care!
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In the Realm of Hungry Ghosts – by Dr. Gabor Maté
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We’ve reviewed books by Dr. Maté before, and this one’s about addiction. We’ve reviewed books about addiction before too, so what makes this one different?
Wow, is this one so different. Most books about addiction are about “beating” it. Stop drinking, quit sugar, etc. And, that’s all well and good. It is definitely good to do those things. But this one’s about understanding it, deeply. Because, as Dr. Maté makes very clear, “there, but for the grace of epigenetics and environmental factors, go we”.
Indeed, most of us will have addictions; they’re (happily) just not too problematic for most of us, being either substances that are not too harmful (e.g. coffee), or behavioral addictions that aren’t terribly impacting our lives (e.g. Dr. Maté’s compulsion to keep buying more classical music, which he then tries to hide from his wife).
The book does also cover a lot of much more serious addictions, the kind that have ruined lives, and the kind that definitely didn’t need to, if people had been given the right kind of help—instead of, all too often, they got the opposite.
Perhaps the greatest value of this book is that; understanding what creates addiction in the first place, what maintains it, and what help people actually need.
Bottom line: if you’d like more insight into the human aspect of addiction without getting remotely wishy-washy, this book is probably the best one out there.
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How Much Alcohol Does It Take To Increase Cancer Risk?
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Alcohol is, of course, unhealthy. Not even the famous “small glass of red” is recommended:
Alcohol also increases all-cause mortality at any dose (even “low-risk drinking”):
Alcohol Consumption Patterns and Mortality Among Older Adults
…and the World Health Organization has declared that the only safe amount of alcohol is zero:
WHO: No level of alcohol consumption is safe for our health
But what of alcohol and cancer? According to the American Association of Cancer Research’s latest report, more than half of Americans do not know that alcohol increases the risk of cancer:
Source: AACR Cancer Progress Report
Why/how does alcohol increase the risk of cancer?
There’s an obvious aspect and a less obvious but very important aspect:
- The obvious: alcohol damages almost every system in the body, and so it’s little surprise if that includes systems whose job it is to keep us safe from cancer.
- The less obvious: alcohol is largely metabolized by certain enzymes that have an impact on DNA repair, such as alcohol dehydrogenases and aldehyde dehydrogenases, amongst others, and noteworthily, acetaldehyde (the main metabolite of alcohol) is itself genotoxic.
Read more: Alcohol & Cancer
This is important, because it means alcohol also increases the risk of cancers other than the obvious head/neck, laryngeal, esophageal, liver, and colorectal cancers.
However, those cancers are of course the most well-represented of alcohol-related cancers, along with breast cancer (this has to do with alcohol’s effect on estrogen metabolism).
If you’re curious about the numbers, and the changes in risk if one reduces/quits/reprises drinking:
❝The increased alcohol-related cancer incidence was associated with dose; those who changed from nondrinking to mild (adjusted hazard ratio [aHR], 1.03; 95% CI, 1.00-1.06), moderate (aHR, 1.10; 95% CI, 1.02-1.18), or heavy (aHR, 1.34; 95% CI, 1.23-1.45) drinking levels had an associated higher risk than those who did not drink.
Those with mild drinking levels who quit drinking had a lower risk of alcohol-related cancer (aHR, 0.96; 95% CI, 0.92-0.99) than those who sustained their drinking levels.
Those with moderate (aHR, 1.07; 95% CI, 1.03-1.12) or heavy (aHR, 1.07; 95% CI, 1.02-1.12) drinking levels who quit drinking had a higher all cancer incidence than those who sustained their levels, but when quitting was sustained, this increase in risk disappeared.
Results of this study showed that increased alcohol consumption was associated with higher risks for alcohol-related and all cancers, whereas sustained quitting and reduced drinking were associated with lower risks of alcohol-related and all cancers.
Alcohol cessation and reduction should be reinforced for the prevention of cancer.❞
Source: Association Between Changes in Alcohol Consumption and Cancer Risk
Worried it’s too late?
If you’re reading this (and thus, evidently, still alive), it isn’t. It’s never too late (nor too early) to reduce, or ideally stop, drinking. Even if you already have cancer, drinking more alcohol will only exacerbate things, and abstaining from alcohol will improve your chances of recovery.
For a reassuring timeline of recovery from alcohol-related damage, see:
What Happens To Your Body When You Stop Drinking Alcohol
Want to stop, but have tried before and find it daunting?
There are a few ways to make it a lot easier:
Rethinking Drinking: How To Reduce Or Quit Alcohol
Take care!
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