Scarcity Brain – by Michael Easter
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After a brief overview of theevolutionary psychology underpinnings of the scarcity brain, the author grounds the rest of this book firmly in the present. He explains how the scarcity loop hooks us and why we crave more, and what factors can increase or lessen its hold over us.
As for what things we are wired to consider “potentially scarce any time now” no matter how saturated we are in them, he looks at an array of categories, each with their nuances. From the obvious such as “food” and “stuff“, to understandable “information” and “happiness“, to abstractions like “influence“, he goes to many sources—experts of various kinds from around the world—to explore how we can know “how much is enough”, and—which can be harder—act accordingly.
The key, he argues, is not in simply wanting less, but in understanding why we crave more in the first place, get rid of our worst habits, and use what we already have, better.
Bottom line: if you feel a gnawing sense of needing more “to be on the safe side”, this book can help you to be a little more strategic (and at the same time, less stressed!) about that.
Click here to check out Scarcity Brain, and manage yours more mindfully!
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Hazelnuts vs Cashews – Which is Healthier?
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Our Verdict
When comparing hazelnuts to cashews, we picked the hazelnuts.
Why?
It’s close! This one’s interesting…
In terms of macros, hazelnuts have more fiber and fats, while cashews have more protein and carbs. All in all, all good stuff all around; maybe a win for one or the other depending on your priorities. We’d pick hazelnuts here, but your preference may vary.
When it comes to vitamins, hazelnuts have more of vitamins A, B1, B2, B3, B5, B6, B9, C, and E, while cashews have more vitamin K. An easy win for hazelnuts here, and the margins weren’t close.
In the category of minerals, hazelnuts have more calcium, manganese, and potassium, while cashews have more copper, iron, magnesium, phosphorus, selenium, and zinc. This is a win for cashews, but it’s worth noting that cup for cup, both of these nuts provide more than the daily requirement of most of those minerals. This means that in practical terms, it doesn’t matter too much that (for example), while cashews provide 732% of the daily requirement for copper, hazelnuts “only” provide 575%. So while this category remains a victory for cashews, it’s something of a “on paper” thing for the most part.
Adding up the sections (ambivalent + clear win for hazelnuts + nominal win for cashews) means that in total today we’re calling it in favour of hazelnuts… But as ever, enjoy both, because both are good and so is diversity!
Want to learn more?
You might like to read:
Why You Should Diversify Your Nuts
Take care!
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Antibiotics? Think Thrice
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Antibiotics: Useful Even Less Often Than Previously Believed (And Still Just As Dangerous)
You probably already know that antibiotics shouldn’t be taken unless absolutely necessary. Not only does taking antibiotics frivolously increase antibiotic resistance (which is bad, and kills people), but also…
It’s entirely possible for the antibiotics to not only not help, but instead wipe out your gut’s “good bacteria” that were keeping other things in check.
Those “other things” can include fungi like Candida albicans.
Candida, which we all have in us to some degree, feeds on sugar (including the sugar formed from breaking down alcohol, by the way) and refined carbs. Then it grows, and puts its roots through your intestinal walls, linking with your neural system. Then it makes you crave the very things that will feed it and allow it to put bigger holes in your intestinal walls.
Don’t believe us? Read: Candida albicans-Induced Epithelial Damage Mediates Translocation through Intestinal Barriers
(That’s scientist-speak for “Candida puts holes in your intestines, and stuff can then go through those holes”)
And as for how that comes about, it’s like we said:
See also: Candida albicans as a commensal and opportunistic pathogen in the intestine
That’s not all…
And that’s just C. albicans, never mind things like C. diff. that can just outright kill you easily.
We don’t have room to go into everything here, but you might like to check out:
Four Ways Antibiotics Can Kill You
It gets worse (now comes the new news)
So, what are antibiotics good for? Surely, for clearing up chesty coughs, lower respiratory tract infections, right? It’s certainly one of the two things that antibiotics are most well-known for being good at and often necessary for (the other being preventing/treating sepsis, for example in serious and messy wounds).
But wait…
A large, nationwide (US) observational study of people who sought treatment in primary or urgent care settings for lower respiratory tract infections found…
(drumroll please)
…the use of antibiotics provided no measurable impact on the severity or duration of coughs even if a bacterial infection was present.
Read for yourself:
And in the words of the lead author of that study,
❝Lower respiratory tract infections tend to have the potential to be more dangerous, since about 3% to 5% of these patients have pneumonia. But not everyone has easy access at an initial visit to an X-ray, which may be the reason clinicians still give antibiotics without any other evidence of a bacterial infection.❞
So, what’s to be done about this? On a large scale, Dr. Merenstein recommends:
❝Serious cough symptoms and how to treat them properly needs to be studied more, perhaps in a randomized clinical trial as this study was observational and there haven’t been any randomized trials looking at this issue since about 2012.❞
This does remind us that, while not a RCT, there is a good ongoing observational study that everyone with a smartphone can participate in:
Dr. Peter Small’s medical AI: “The Cough Doctor”
In the meantime, he advises that when COVID and SARS have been ruled out, then “basic symptom-relieving medications plus time brings a resolution to most people’s infections”.
You can read a lot more detail here:
Antibiotics aren’t effective for most lower tract respiratory infections
In summary…
Sometimes, antibiotics really are a necessary and life-saving medication. But most of the time they’re not, and given their great potential for harm, they may be best simultaneously viewed as the very dangerous threat they also are, and used only when those “heavy guns” are truly what’s required.
Take care!
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Ginkgo Biloba, For Memory And, Uh, What Else Again?
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Ginkgo biloba, for memory and, uh, what else again?
Ginkgo biloba extract has enjoyed use for thousands of years for an assortment of uses, and has made its way from Traditional Chinese Medicine, to the world supplement market at large. See:
Ginkgo biloba: A Treasure of Functional Phytochemicals with Multimedicinal Applications
But what does the science say about the specific claims?
Antioxidant & anti-inflammatory
We’re going to lump these two qualities together for examination, since one invariably leads to the other.
A quick note: things that have antioxidant and anti-inflammatory properties, often also help guard against cancer and aging. However, in this case, there are few good studies pertaining to anti-aging, and none that we could find pertaining to anti-cancer potential.
So, does it have antioxidant and anti-inflammatory properties, first?
Yes, it has potent antioxidants that do fight inflammation; this is clear, from an abundance of in vitro and in vivo studies, including with human patients:
- Properties of Ginkgo biloba L.: incl. Antioxidant Characterization
- Anti-inflammatory effects of Ginkgo biloba extract against hippocampal neuronal injury
- Gingko biloba-derived lactone prevents osteoarthritis by activating anti-inflammatory signaling pathway
- The anti-inflammatory properties of Ginkgo biloba for the treatment of pulmonary diseases
In short: it helps, and there’s plenty of science for it.
What about anti-aging effects?
For this, there is science, but a lot of the science is not great. As one team of researchers concluded while doing a research review of their own:
❝Based on the reviewed information regarding EGb’s effects in vitro and in vivo, most have reported very positive outcomes with strong statistical analyses, indicating that EGb must have some sort of beneficial effect.
However, information from the reported clinical trials involving EGb are hardly conclusive since many do not include information such as the participant’s age and physical condition, drug doses administered, duration of drug administered as well as suitable control groups for comparison.
We therefore call on clinicians and clinician-scientists to establish a set of standard and reliable standard operating procedure for future clinical studies to properly evaluate EGb’s effects in the healthy and diseased person since it is highly possible it possesses beneficial effects.❞
Translation from sciencese: “These results are great, but come on, please, we are begging you to use more robust methodology”
If you’d like to read the review in question, here it is:
Advances in the Studies of Ginkgo Biloba Leaves Extract on Aging-Related Diseases
Does it have cognitive enhancement effects?
The claims here are generally that it helps:
- improve memory
- improve focus
- reduce cognitive decline
- reduce anxiety and depression
Let’s break these down:
Does it improve memory and cognition?
Ginkgo biloba was quite popular for memory 20+ years ago, and perhaps had an uptick in popularity in the wake of the 1999 movie “Analyze This” in which the protagonist psychiatrist mentions taking ginkgo biloba, because “it helps my memory, and I forget what else”.
Here are a couple of studies from not long after that:
- A double-blind, placebo-controlled, randomized trial of Ginkgo biloba in cognitively intact older adults: neuropsychological findings
- Effects of Ginkgo biloba on mental functioning in healthy volunteers
In short:
- in the first study, it helped in standardized tests of memory and cognition (quite convincing)
- In the second study, it helped in subjective self-reports of mental wellness (also placebo-controlled)
On the other hand, here’s a more recent research review ten years later, that provides measures of memory, executive function and attention in 1132, 534 and 910 participants, respectively. That’s quite a few times more than the individual studies we cited above, by the way. They concluded:
❝We report that G. biloba had no ascertainable positive effects on a range of targeted cognitive functions in healthy individuals❞
Read: Is Ginkgo biloba a cognitive enhancer in healthy individuals? A meta-analysis
Our (10almonds) conclusion: we can’t say either way, on this one.
Does it have neuroprotective effects (i.e., against cognitive decline)?
Yes—probably by the same mechanism will discuss shortly.
- Ginkgo Biloba for Mild Cognitive Impairment and Alzheimer’s Disease: A Systematic Review and Meta-Analysis of Randomized Controlled Trials
- Treatment effects of Ginkgo biloba extract on symptoms of dementia: meta-analysis of randomized controlled trials
Can it help against depression and anxiety?
Yes—but probably indirectly by the mechanism we’ll get to in a moment:
- Role of Ginkgo biloba extract as an adjunctive treatment of elderly patients with depression
- Ginkgo biloba in generalized anxiety disorder and adjustment disorder with anxious mood
Likely this helps by improving blood flow, as illustrated better per:
Efficacy of ginkgo biloba extract as augmentation of venlafaxine in treating post-stroke depression
Which means…
Bonus: improved blood flow
This mechanism may support the other beneficial effects.
See: Ginkgo biloba extract improves coronary blood flow in healthy elderly adults
Is it safe?
Ginkgo biloba extract* is generally recognized as safe.
- However, as it improves blood flow, please don’t take it if you have a bleeding disorder.
- Additionally, it may interact badly with SSRIs, so you might want to avoid it if you’re taking such (despite it having been tested and found beneficial as an adjuvant to citalopram, an SSRI, in one of the studies above).
- No list of possible contraindications can be exhaustive, so please consult your own doctor/pharmacist before taking something new.
*Extract, specifically. The seeds and leaves of this plant are poisonous. Sometimes “all natural” is not better.
Where can I get it?
As ever, we don’t sell it (or anything else), but here’s an example product on Amazon
Enjoy!
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The Real Reason Most Women Don’t Lose Belly Fat
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Notwithstanding the title, this does also go for men too, by the way—while hormones count, they count differently. People with an estrogen-based metabolism (so usually: women) will usually have more body fat, which can make it harder to get visible muscletone, for those who want that. But people with a testosterone-based metabolism (so usually: men) will have different fat storage patterns, and belly-fat is more testosterone-directed than estrogen-directed (estrogen will tend to put it more to the thighs, butt, back, breasts, etc).
So the advice here is applicable to all…
Challenges and methods
The biggest barrier to success: many people give up when results are not immediate, especially if our body has been a certain way without change for a long time.
- “Oh, I guess it’s just genetics”
- “Oh, I guess it’s just age”
- “Oh, I guess it’s just because of [chronic condition]”
…and such things can be true! And yet, in each of the cases, persisting is still usually what the body needs.
So, should we give ourselves some “tough love” and force ourselves through discomfort?
Yes and no, Lefkowith says. It is important to be able to push through some discomfort, but it’s also important that whatever we’re doing should be sustainable—which means we do need to push, while also allowing ourselves adequate recovery time, and not taking unnecessary risks.
In particular, she advises to:
- remember that at least half the work is in the kitchen not the gym, and to focus more on adding protein than reducing calories
- enjoy a regular but varied core exercise routine
- stimulate blood flow to stubborn areas, which can aid in fat mobilization
- focus on getting nutrient-dense foods
- prioritize recovery and strategic rest
For more details on these things and more, enjoy:
Click Here If The Embedded Video Doesn’t Load Automatically!
Want to learn more?
You might also like to read:
Visceral Belly Fat: What It Is & How To Lose It
Take care!
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Fisetin: The Anti-Aging Assassin
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Out With The Old…
Fisetin is a flavonoid (specifically, a flavonol), but it’s a little different than most. While it has the usual antioxidant, anti-inflammatory, and anti-cancer properties you might reasonably expect from flavonoids, it has an extra anti-aging trick up its sleeve that most don’t.
❝Fisetin is a flavonol that shares distinct antioxidant properties with a plethora of other plant polyphenols. Additionally, it exhibits a specific biological activity of considerable interest as regards the protection of functional macromolecules against stress which results in the sustenance of normal cells cytoprotection. Moreover, it shows potential as an anti-inflammatory, chemopreventive, chemotherapeutic and recently also senotherapeutic agent❞
~ Dr. Grynkiewicz & Dr. Demchuk
Let’s briefly do some due diligence on its expected properties, and then we’ll take a look at its bonus anti-aging effects.
The flavonol that does-it-ol
Because of the similar mechanisms involved, there are three things that often come together, which are:
- Antioxidant
- Anti-inflammatory
- Anticancer
This list often gets expanded to also include:
- Anti-aging
…although that is usually the last thing to get tested out of that list.
In today’s case, let’s kick it off with…
❝Fisetin (3,3′,4′,7-tetrahydroxyflavone) is a dietary flavonoid found in various fruits (strawberries, apples, mangoes, persimmons, kiwis, and grapes), vegetables (tomatoes, onions, and cucumbers), nuts, and wine that has shown strong anti-inflammatory, anti-oxidant, anti-tumorigenic, anti-invasive, anti-angiogenic, anti-diabetic, neuroprotective, and cardioprotective effects❞
Read more: Fisetin and Its Role in Chronic Diseases
Understanding its anticancer mechanisms
The way that fisetin fights cancer is basically “all the ways”, and this will be important when we get to its special abilities shortly:
❝Being a potent anticancer agent, fisetin has been used to inhibit stages in the cancer cells (proliferation, invasion),prevent cell cycle progression, inhibit cell growth, induce apoptosis, cause polymerase (PARP) cleavage, and modulate the expressions of Bcl‐2 family proteins in different cancer cell lines (HT‐29, U266, MDA‐MB‐231, BT549, and PC‐3M‐luc‐6), respectively. Further, fisetin also suppresses the activation of the PKCα/ROS/ERK1/2 and p38 MAPK signaling pathways, reduces the NF‐κB activation, and down‐regulates the level of the oncoprotein securin. Fisetin also inhibited cell division and proliferation and invasion as well as lowered the TET1 expression levels. ❞
Read more: Fisetin: An anticancer perspective
There’s also more about it than we even have room to quote, here:
Now For What’s New And Exciting: Senolysis
All that selectivity that fisetin exhibits when it comes to “this cell gets to live, and this one doesn’t” actions?
It makes a difference when it comes to aging, too. Because aging and cancer happen by quite similar mechanisms; they’re both DNA-copying errors that get copied forward, to our detriment.
- In the case of cancer, it’s a cell line that accidentally became immortal and so we end up with too many of them multiplying in one place (a tumor)
- In the case of aging, it’s the cellular equivalent of “a photocopy of a photocopy of a photocopy” gradually losing information as it goes
In both cases…
The cell must die if we want to live
Critically, and which quality differentiates it from a lot of other flavonoids, fisetin has the ability to selectively kill senescent cells.
To labor the photocopying metaphor, this means there’s an office worker whose job it is to say “this photocopy is barely legible, I’m going to toss this, and then copy directly from the clearest copy we have instead”, thus keeping the documents (your DNA) in pristine condition.
In fisetin’s case, this was first tested in mouse (in vivo) studies, and in human tissue (in vitro) studies, before moving to human clinical studies:
❝Of the 10 flavonoids tested, fisetin was the most potent senolytic.
The natural product fisetin has senotherapeutic activity in mice and in human tissues. Late life intervention was sufficient to yield a potent health benefit.❞
~ Dr. Matthew Yousefzadeh et al.
Read in full: Fisetin is a senotherapeutic that extends health and lifespan
There’s lots more science that’s been done to it since that first groundbreaking study though; here’s a more recent example:
Want some?
We don’t sell it, but here for your convenience is an example product on Amazon
Enjoy!
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What Weston Price Got Right (And Wrong)
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Weston Price: What Stood The Test of Time?
This is Dr. Weston Price, a dentist. You may guess from the photo, or perhaps already knew, his work is not new in 2023. We usually feature current health experts here, but we’re taking a day to do a blast from the past, because his ideas endure today, and inform a lot of people’s health views. So, he’s a good one to at least know about.
What was his deal?
Dr. Price (1870–1948) wanted to study focal infection theory—the idea that repairing root canals allowed bacterial infections that caused everything from heart disease to arthritis. His solution was that the teeth should be extracted instead.
This theory was popular in the 1920s, was challenged in the 1930s, ignored in the 1940s (the world was a bit busy), and by broad medical consensus anyway, rejected in the 1950s. But, while it was being challenged in the 1930s, Dr. Price decided to find more evidence for its support.
The result was his famous world tour of peoples living traditional lifestyles without the influence of “modern” diet. His findings, and the conclusions he drew from them, extended to far more than just dental health.
What did he find?
Dr. Price found that people living traditional lifestyles, with their traditional diets based on locally-sourced foods, had much better overall health. Of course, he was a dentist and not a general practitioner, so aside from examining their teeth, he largely relied on self-reported diagnoses of illness, or lack thereof.
In short: he found that people in places without modern medical institutions had fewer diagnoses of disease. From this, he concluded that incidence of disease was much lower.
There was also an unexamined element of survivorship bias—an undiagnosed disease is more likely to be fatal, and he questioned only living people, which skewed the stats rather. Nor did he examine infant mortality rate nor adult life expectancy, both of which were not great.
Was it all useless, then?
Actually no! He did hit upon some observations that have stood the test of time:
- He correctly concluded that modern diets with sugar and white flour were ruinous to the health.
- He correctly concluded that locally-sourced food, and grass-fed in the case of pastoral farming, tended to have much more nutritional value than the mass-produced results of intensive farming.
- He correctly concluded that many modern preservation methods robbed foods of their nutrients.
- He correctly concluded that many grains and seeds are more nutritions when fermented/soaked/sprouted.
About that “locally-sourced food”: the reason locally-sourced food tends to be more nutritious is that it has required less in the way of preservation for a long trip around the world, and will also tend to be fresher.
On the other hand, this does mean a lot of the foods that Dr. Price recommends are very much subject to availability. It may well be true that the Inuit people do not eat a lot of fruit and veg (which mostly do not grow there), but if you live in Nevada, maybe locally-sourced whale fat is just as difficult to find.
One person’s “this fatty organ meat contains the vitamin C we need” may be another person’s “that’s great; I have an apple tree in my garden though”.
Want to learn more?
Dr. Price’s most influential work is his magnum opus, “Nutrition and Physical Degeneration”. It’s a fascinating book in its historical context, but do be warned, it was written by a rich white man in 1939 and the writing is as racist as you might expect. Even when making favourable comparisons, the tone is very much “and here is what these savages are doing well”.
If you don’t fancy reading all that, here are two other sources about Weston Price’s work and conclusions, presented for balance:
- The Weston A. Price Foundation (Official Website)
- Weston Price’s Appalling Legacy (Science-Based Medicine.org)
Enjoy!
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