Why You Probably Need More Sleep
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Sleep: yes, you really do still need it!
We asked you how much sleep you usually get, and got the above-pictured, below-described set of responses:
- A little of a third of all respondents selected the option “< 7 hours”
- However, because respondents also selected options such as < 6 hours, < 5 hours, and < 4 hours, so if we include those in the tally, the actual total percentage of respondents who reported getting under 7 hours, is actually more like 62%, or just under two thirds of all respondents.
- Nine respondents, which was about 5% of the total, reported usually getting under 4 hours sleep
- A little over quarter of respondents reported usually getting between 7 and 8 hours sleep
- Fifteen respondents, which was a little under 10% of the total, reported usually getting between 8 and 9 hours of sleep
- Three respondents, which was a little under 2% of the total, reported getting over 9 hours of sleep
- In terms of the classic “you should get 7–9 hours sleep”, approximately a third of respondents reported getting this amount.
You need to get 7–9 hours sleep: True or False?
True! Unless you have a (rare!) mutated ADRB1 gene, which reduces that.
The way to know whether you have this, without genomic testing to know for sure, is: do you regularly get under 6.5 hours sleep, and yet continue to go through life bright-eyed and bushy-tailed? If so, you probably have that gene. If you experience daytime fatigue, brain fog, and restlessness, you probably don’t.
About that mutated ADRB1 gene:
NIH | Gene identified in people who need little sleep
Quality of sleep matters as much as duration, and a lot of studies use the “RU-Sated” framework, which assesses six key dimensions of sleep that have been consistently associated with better health outcomes. These are:
- regularity / usual hours
- satisfaction with sleep
- alertness during waking hours
- timing of sleep
- efficiency of sleep
- duration of sleep
But, that doesn’t mean that you can skimp on the last one if the others are in order. In fact, getting a good 7 hours sleep can reduce your risk of getting a cold by three or four times (compared with six or fewer hours):
Behaviorally Assessed Sleep and Susceptibility to the Common Cold
^This study was about the common cold, but you may be aware there are more serious respiratory viruses freely available, and you don’t want those, either.
Napping is good for the health: True or False?
True or False, depending on how you’re doing it!
If you’re trying to do it to sleep less in total (per polyphasic sleep scheduling), then no, this will not work in any sustainable fashion and will be ruinous to the health. We did a Mythbusting Friday special on specifically this, a while back:
Could Just Two Hours Sleep Per Day Be Enough?
PS: you might remember Betteridge’s Law of Headlines
If you’re doing it as a energy-boosting supplement to a reasonable night’s sleep, napping can indeed be beneficial to the health, and can give benefits such as:
However! There is still a right and a wrong way to go about it, and we wrote about this previously, for a Saturday Life Hacks edition of 10almonds:
How To Nap Like A Pro (No More “Sleep Hangovers”!)
As we get older, we need less sleep: True or False
False, with one small caveat.
The small caveat: children and adolescents need 9–12 hours sleep because, uncredited as it goes, they are doing some seriously impressive bodybuilding, and that is exhausting to the body. So, an adult (with a normal lifestyle, who is not a bodybuilder) will tend to need less sleep than a child/adolescent.
But, the statement “As we get older, we need less sleep” is generally taken to mean “People in the 65+ age bracket need less sleep than younger adults”, and this popular myth is based on anecdotal observational evidence: older people tend to sleep less (as our survey above shows! For any who aren’t aware, our readership is heavily weighted towards the 60+ demographic), and still continue functioning, after all.
Just because we survive something with a degree of resilience doesn’t mean it’s good for us.
In fact, there can be serious health risks from not getting enough sleep in later years, for example:
Sleep deficiency promotes Alzheimer’s disease development and progression
Want to get better sleep?
What gets measured, gets done. Sleep tracking apps can be a really good tool for getting one’s sleep on a healthier track. We compared and contrasted some popular ones:
The Head-To-Head Of Google and Apple’s Top Apps For Getting Your Head Down
Take good care of yourself!
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Potatoes & Anxiety
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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
❝My other half considers potatoes a wonder food, except when fried. I don’t. I find, when I am eating potatoes I put on weight; and, when I’m not eating them, I lose it. Also, although I can’t swear to it, potatoes also make me feel a little anxious (someone once told me it could have something to do with where they are on the “glycemic index”). What does the science say?❞
The glycemic index of potatoes depends on the kind of potato (obviously) and also, less obviously, how it’s prepared. For a given white potato, boiling (which removes a lot of starch) might produce a GI of around 60, while instant mash (basically: potato starch) can be more like 80. For reference, pure glucose is 100. And you probably wouldn’t take that in the same quantity you’d take potato, and expect to feel good!
So: as for anxiety, it could be, since spiked blood sugars can cause mood swings, including anxiety.
Outside of the matter of blood sugars, the only reference we could find for potatoes causing anxiety was fried potatoes specifically:
❝frequent fried food consumption, especially fried potato consumption, is strongly associated with 12% and 7% higher risk of anxiety and depression, respectively❞
…which heavily puts the blame not on the potatoes themselves, but on acrylamide (the orange/brown stuff that is made by the Maillard reaction of cooking starches in the absence of water, e.g. by frying, roasting, etc).
Here’s a very good overview of that, by the way:
A Review on Acrylamide in Food: Occurrence, Toxicity, and Mitigation Strategies
Back on the core topic of potatoes and GI and blood sugar spikes and anxiety, you might benefit from a few tweaks that will allow you to enjoy potatoes without spiking blood sugars:
10 Ways To Balance Blood Sugars
Enjoy!
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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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Cross That Bridge – by Samuel J. Lucas
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Books of this genre usually have several chapters of fluff before getting to the point. You know the sort:
- Let me tell you about some cherry-picked celebrity stories that overlook survivorship bias
- Let me tell you my life story, the bad parts
- My life story continued, the good parts now
- What this book can do for you, an imaginative pep talk that keeps circling back to me
…then there will be two or three chapters of the actual advertised content, and then a closing chapter that’s another pep talk.
This book, in contrast, throws that out of the window. Instead, Lucas provides a ground-up structure… within which, he makes a point of giving value in each section:
- exercises
- summaries
- actionable advice
For those who like outlines, lists, and overviews (as we do!), this is perfect. There are also plenty of exercises to do, so for those who like exercises, this book will be great too!
Caveat: occasionally, the book’s actionable advices are direct but unclear, for example:
- Use the potential and power of tea, to solve problems
Context: there was no context. This was a bullet-pointed item, with no explanation. It was not a callback to anything earlier; this is the first (and only) reference to tea.
However! The book as a whole is a treasure trove of genuine tips, tools, and voice-of-experience wisdom. Occasional comments may leave you scratching your head, but if you take value from the rest, then the book was already more than worth its while.
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What you need to know about endometriosis
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Endometriosis affects one in 10 people with a uterus who are of reproductive age. This condition occurs when tissue similar to the endometrium—the inner lining of the uterus—grows on organs outside of the uterus, causing severe pain that impacts patients’ quality of life.
Read on to learn more about endometriosis: What it is, how it’s diagnosed and treated, where patients can find support, and more.
What is endometriosis, and what areas of the body can it affect?
The endometrium is the tissue that lines the inside of the uterus and sheds during each menstrual cycle. Endometriosis occurs when endometrial-like tissue grows outside of the uterus.
This tissue can typically grow in the pelvic region and may affect the outside of the uterus, fallopian tubes, ovaries, vagina, bladder, intestines, and rectum. It has also been observed outside of the pelvis on the lungs, spleen, liver, and brain.
What are the symptoms?
Symptoms may include pelvic pain and cramping before or during menstrual periods, heavy menstrual bleeding, bleeding or spotting between periods, pain with bowel movements or urination, pain during or after sex or orgasm, fatigue, nausea, bloating, and infertility.
The pain associated with this condition has been linked to depression, anxiety, and eating disorders. A meta-analysis published in 2019 found that more than two-thirds of patients with endometriosis report psychological stress due to their symptoms.
Who is at risk?
Endometriosis most commonly occurs in people with a uterus between the ages of 25 and 40, but it can also affect pre-pubescent and post-menopausal people. In rare cases, it has been documented in cisgender men.
Scientists still don’t know what causes the endometrial-like tissue to grow, but research shows that people with a family history of endometriosis are at a higher risk of developing the condition. Other risk factors include early menstruation, short menstrual cycles, high estrogen, low body mass, and starting menopause at an older age.
There is no known way to prevent endometriosis.
How does endometriosis affect fertility?
Up to 50 percent of people with endometriosis may struggle to get pregnant. Adhesions and scarring on the fallopian tubes and ovaries as well as changes in hormones and egg quality can contribute to infertility.
Additionally, when patients with this condition are able to conceive, they may face an increased risk of pregnancy complications and adverse pregnancy outcomes.
Treating endometriosis, taking fertility medications, and using assistive reproductive technology like in vitro fertilization can improve fertility outcomes.
How is endometriosis diagnosed, and what challenges do patients face when seeking a diagnosis?
A doctor may perform a pelvic exam and request an ultrasound or MRI. These exams and tests help identify cysts or other unusual tissue that may indicate endometriosis.
Endometriosis can only be confirmed through a surgical laparoscopy (although less-invasive diagnostic tests are currently in development). During the procedure, a surgeon makes a small cut in the patient’s abdomen and inserts a thin scope to check for endometrial-like tissue outside of the uterus. The surgeon may take a biopsy, or a small sample, and send it to a lab.
It takes an average of 10 years for patients to be properly diagnosed with endometriosis. A 2023 U.K. study found that stigma around menstrual health, the normalization of menstrual pain, and a lack of medical training about the condition contribute to delayed diagnoses. Patients also report that health care providers dismiss their pain and attribute their symptoms to psychological factors.
Additionally, endometriosis has typically been studied among white, cisgender populations. Data on the prevalence of endometriosis among people of color and transgender people is limited, so patients in those communities face additional barriers to care.
What treatment options are available?
Treatment for endometriosis depends on its severity. Management options include:
- Over-the-counter pain medication to alleviate pelvic pain
- Hormonal birth control to facilitate lighter, less painful periods
- Hormonal medications such as gonadotropin-releasing hormone (GnRH) or danazol, which stop the production of hormones that cause menstruation
- Progestin therapy, which may stop the growth of endometriosis tissue
- Aromatase inhibitors, which reduce estrogen
In some cases, a doctor may perform a laparoscopic surgery to remove endometrial-like tissue.
Depending on the severity of the patient’s symptoms and scar tissue, some doctors may also recommend a hysterectomy, or the removal of the uterus, to alleviate symptoms. Doctors may also recommend removing the patient’s ovaries, inducing early menopause to potentially improve pain.
Where can people living with endometriosis find support?
Given the documented mental health impacts of endometriosis, patients with this condition may benefit from therapy, as well as support from others living with the same symptoms. Some peer support organizations include:
- Endometriosis Coalition Patient Support Group (virtual)
- MyEndometriosisTeam (virtual)
- Endo Black, Inc. (Washington, D.C.)
- endoQueer (virtual)
For more information, talk to your health care provider.
This article first appeared on Public Good News and is republished here under a Creative Commons license.
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Red Light, Go!
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Casting Yourself In A Healthier Light
In Tuesday’s newsletter, we asked you for your opinion of red light therapy (henceforth: RLT), and got the above-depicted, below-described, set of responses:
- About 51% said “I have no idea whether light therapy works or not”
- About 24% said “Red light therapy is a valuable skin rejuvenation therapy”
- About 23% said “I have not previously heard of red light therapy”
- One (1) person said: “Red light therapy is a scam to sell shiny gadgets”
A number of subscribers wrote with personal anecdotes of using red light therapy to beneficial effect, for example:
❝My husband used red light therapy after surgery on his hand. It did seem to speed healing of the incision and there is very minimal scarring. I would like to know if the red light really helped or if he was just lucky❞
~ 10almonds subscriber
And one wrote to report having observed mixed results amongst friends, per:
❝Some people it works, others I’ve seen it breaks them out❞
~ 10almonds subscriber
So, what does the science say?
RLT rejuvenates skin, insofar as it reduces wrinkles and fine lines: True or False?
True! This one’s pretty clear-cut, so we’ll just give one example study of many, which found:
❝The treated subjects experienced significantly improved skin complexion and skin feeling, profilometrically assessed skin roughness, and ultrasonographically measured collagen density.
The blinded clinical evaluation of photographs confirmed significant improvement in the intervention groups compared with the control❞
~ Dr. Alexander Wunsch & Dr. Karsten Matuschka
RLT helps speed up healing of wounds: True or False?
True! There is less science for this than the above claim, but the studies that have been done are quite compelling, for example this NASA technology study found that…
❝LED produced improvement of greater than 40% in musculoskeletal training injuries in Navy SEAL team members, and decreased wound healing time in crew members aboard a U.S. Naval submarine.❞
Read more: Effect of NASA light-emitting diode irradiation on wound healing
RLT’s benefits are only skin-deep: True or False?
False, probably, but we’d love to see more science for this, to be sure.
However, it does look like wavelengths in the near-infrared spectrum reduce the abnormal tau protein and neurofibrillary tangles associated with Alzheimer’s disease, resulting in increased blood flow to the brain, and a decrease in neuroinflammation:
Therapeutic Potential of Photobiomodulation In Alzheimer’s Disease: A Systematic Review
Would you like to try RLT for yourself?
There are some contraindications, for example:
- if you have photosensitivity (for obvious reasons)
- if you have Lupus (mostly because of the above)
- if you have hyperthyroidism (because if you use RLT to your neck as well as face, it may help stimulate thyroid function, which in your case is not what you want)
As ever, please check with your own doctor if you’re not completely sure; we can’t cover all bases here, and cannot speak for your individual circumstances.
For most people though, it’s very safe, and if you’d like to try it, here’s an example product on Amazon, and by all means do read reviews and shop around for the ideal device for you
Take care! 😎
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Margarine vs Butter – Which is Healthier
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Our Verdict
When comparing margarine to butter, we picked the butter.
Why?
Once upon a time, when margarines were filled with now-banned trans fats, this would have been an easy win for butter.
Nowadays, the macronutrient/lipid profiles are generally more similar (although margarine often has a little less saturated fat), except one thing that butter has in its favor:
More micronutrients. What exactly they are (and how much) depends on the diet and general health of the cows from whom the milk to make the butter came, but they’re not something found in plant-based butter alternatives at this time.
Nevertheless, because of the saturated fat content, it’s not advisable to use more than a very small amount of either (two tablespoons of butter would put one at the daily limit already, without eating any other saturated fat that day).
Read more: Butter vs Margarine
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