Could Just Two Hours Sleep Per Day Be Enough?
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Polyphasic Sleep… Super-Schedule Or An Idea Best Put To Rest?
What is it?
Let’s start by defining some terms:
- Monophasic sleep—sleeping in one “chunk” per day. For example, a good night’s “normal” sleep.
- Biphasic sleep—sleeping in two “chunks” per day. Typically, a shorter night’s sleep, with a nap usually around the middle of the day / early afternoon.
- Polyphasic sleep—sleeping in two or more “chunks per day”. Some people do this in order to have more hours awake per day, to do things. The idea is that sleeping this way is more efficient, and one can get enough rest in less time. The most popular schedules used are:
- The Überman schedule—six evenly-spaced 20-minute naps, one every four hours, throughout the 24-hour day. The name is a semi-anglicized version of the German word Übermensch, “Superman”.
- The Everyman schedule—a less extreme schedule, that has a three-hours “long sleep” during the night, and three evenly-spaced 20-minute naps during the day, for a total of 4 hours sleep.
There are other schedules, but we’ll focus on the most popular ones here.
Want to learn about the others? Visit: Polyphasic.Net (a website by and for polyphasic sleep enthusiasts)
Some people have pointed to evidence that suggests humans are naturally polyphasic sleepers, and that it is only modern lifestyles that have forced us to be (mostly) monophasic.
There is at least some evidence to suggest that when environmental light/dark conditions are changed (because of extreme seasonal variation at the poles, or, as in this case, because of artificial changes as part of a sleep science experiment), we adjust our sleeping patterns accordingly.
The counterpoint, of course, is that perhaps when at the mercy of long days/nights at the poles, or no air-conditioning to deal with the heat of the day in the tropics, that perhaps we were forced to be polyphasic, and now, with modern technology and greater control, we are free to be monophasic.
Either way, there are plenty of people who take up the practice of polyphasic sleep.
Ok, But… Why?
The main motivation for trying polyphasic sleep is simply to have more hours in the day! It’s exciting, the prospect of having 22 hours per day to be so productive and still have time over for leisure.
A secondary motivation for trying polyphasic sleep is that when the brain is sleep-deprived, it will prioritize REM sleep. Here’s where the Überman schedule becomes perhaps most interesting:
The six evenly-spaced naps of the Überman schedule are each 20 minutes long. This corresponds to the approximate length of a normal REM cycle.
Consequently, when your head hits the pillow, you’ll immediately begin dreaming, and at the end of your dream, the alarm will go off.
Waking up at the end of a dream, when one hasn’t yet entered a non-REM phase of sleep, will make you more likely to remember it. Similarly, going straight into REM sleep will make you more likely to be aware of it, thus, lucid dreaming.
Read: Sleep fragmentation and lucid dreaming (actually a very interesting and informative lucid dreaming study even if you don’t want to take up polyphasic sleep)
Six 20-minute lucid-dreaming sessions per day?! While awake for the other 22 hours?! That’s… 24 hours per day of wakefulness to use as you please! What sorcery is this?
Hence, it has quite an understandable appeal.
Next Question: Does it work?
Can we get by without the other (non-REM) kinds of sleep?
According to Überman cycle enthusiasts: Yes! The body and brain will adapt.
According to sleep scientists: No! The non-REM slow-wave phases of sleep are essential
Read: Adverse impact of polyphasic sleep patterns in humans—Report of the National Sleep Foundation sleep timing and variability consensus panel
(if you want to know just how bad it is… the top-listed “similar article” is entitled “Suicidal Ideation”)
But what about, for example, the Everman schedule? Three hours at night is enough for some non-REM sleep, right?
It is, and so it’s not as quickly deleterious to the health as the Überman schedule. But, unless you are blessed with rare genes that allow you to operate comfortably on 4 hours per day (you’ll know already if that describes you, without having to run any experiment), it’s still bad.
Adults typically need 7–9 hours of sleep per night, and if you don’t get it, you’ll accumulate a sleep debt. And, importantly:
When you accumulate sleep debt, you are borrowing time at a very high rate of interest!
And, at risk of laboring the metaphor, but this is important too:
Not only will you have to pay it back soon (with interest), you will be hounded by the debt collection agents—decreased cognitive ability and decreased physical ability—until you pay up.
In summary:
- Polyphasic sleep is really very tempting
- It will give you more hours per day (for a while)
- It will give the promised lucid dreaming benefits (which is great until you start micronapping between naps, this is effectively a mini psychotic break from reality lasting split seconds each—can be deadly if behind the wheel of a car, for instance!)
- It is unequivocally bad for the health and we do not recommend it
Bottom line:
Some of the claimed benefits are real, but are incredibly short-term, unsustainable, and come at a cost that’s far too high. We get why it’s tempting, but ultimately, it’s self-sabotage.
(Sadly! We really wanted it to work, too…)
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Stick with It – by Dr. Sean Young
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Most of us know the theory when it comes to building new habits and/or replacing old ones, and maybe we even implement those ideas. So why is our success rate still not as high as we think it should be?
Dr. Sean Young is here to do science to it!
This book comes with advice and explanations that rely a lot less on “that sounds reasonable” and a lot more on “in this recent high-quality study, researchers found…”
And, at 10almonds, we love that. We’re all for trying new things that sound reasonable in general… but we definitely prefer when there’s a stack of solid science to point to, and that’s the kind of thing we recommend!
Dr. Young is big on using that science to find ways to trick our brains and get them working the way we want.
Each chapter has lots of science, lots of explanations, and lots of actionable step-by-step advice.
Bottom line: if you’re all over “Atomic Habits”, this one’s the science-based heavy-artillery for your practical neurohacking.
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Goji Berries vs Pomegranate – Which is Healthier?
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Our Verdict
When comparing goji berries to pomegranate, we picked the goji berries.
Why?
Both fruits with substantial phytochemical benefits, but…
In terms of macros, goji berries have a lot more protein, carbs, and fiber, the ratio of which latter two brings the glycemic index to the same place as pomegranate’s—specifically, that eating either of these will not raise a person’s blood glucose levels. We thus call this a win for goji berries, as the “more food per food” option.
In the category of vitamins, goji berries have a lot more of vitamins A, B3, B6, and C, while pomegranate is not higher in any vitamins.
When it comes to minerals, goji berries have more calcium, iron, magnesium, selenium, and zinc, while pomegranate has more copper. Another win for goji berries here.
With regard to those phytochemical benefits we talked about; it’s worth noting that they come in abundance in goji berries, while in pomegranates, most of the benefits are in the peel, not the flesh/seeds that people most often eat. So, again goji berries win.
Adding up the sections makes for an easy win for goji berries today.
Want to learn more?
You might like to read:
- Goji Berries: Which Benefits Do They Really Have?
- The Sugary Food That Lowers Blood Sugars ← this is about goji berries
- Pomegranate’s Health Gifts Are Mostly In Its Peel
Take care!
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The Knowledge That Harvard Medical School’s Clinical Instructor Dr. Monique Tello Thinks Everyone SHOULD Have About Heart Health
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Anyone (who has not had a double mastectomy, anyway) can get breast cancer.
Breast cancer, if diagnosed early (before it spreads), has a 98% survival rate.
That survival rate drops to 31% if diagnosed after it has spread through the body.
(The US CDC’s breast cancer “stat bite” page has more stats and interactive graphs, so click here to see those charts and get the more detailed low-down on mortality/survival rates with various different situations)
We think that the difference between 98% and 31% survival rates is more than enough reason to give ourselves a monthly self-check at the very least! You’ve probably seen how-to diagrams before, but here are instructions for your convenience:
This graphic created by the Jordan Breast Cancer Program (check them out, as they have lots of resources)
If you don’t have the opportunity to take matters into your own hands right now, rather than just promise yourself “I’ll do that later”, take this free 4-minute Breast Health Assessment from Aurora Healthcare. Again, we think the difference early diagnosis can make to your survival chances make these tests well worth it.
Lest we forget, men can also get breast cancer (the CDC has a page for men too), especially if over 50. But how do you check for breast cancer, when you don’t have breasts in the commonly-understood sense of the word?
So take a moment to do this (yes, really actually do it!), and set a reminder in your calendar to repeat it monthly—there really is no reason not to! Take care of yourself; you’re important.
Pssst! Did you scroll past the diagrams, looking for the online 4-minute test promised by the subtitle? If so, scroll back up; the link is in the middle!
Harvard Medical School’s Clinical Instructor’s Five-Point Plan for Heart Health
Dr. Monique Tello, M.D., M.P.H., is a practicing physician at Massachusetts General Hospital, director of research and academic affairs for the MGH DGM Healthy Lifestyle Program, clinical instructor at Harvard Medical School, and author of the evidence-based lifestyle change guide Healthy Habits for Your Heart.
Here are what she says are the five most important factors to help keep your ticker ticking:
5. Have (at most) a moderate alcohol intake! While there are polyphenols such as resveratrol in red wine that could boost heart health, there’s so little per glass that you may need 100–1000 glasses to get the dosage that provides benefits in mouse studies. If you’re not a mouse, it may not be as beneficial, and Dr. Tello recommends drinking no more than one glass per day of any alcohol. What constitutes a glass? It varies from one kind of drink to another, so here’s a handy guide.
4. Don’t smoke. Best of all to never start. But if you did, quit. Simple as that. There is no healthy amount of smoking. While paradoxically, quitting smoking may of course be stressful to you, the long term gains are considered more than worth it. As with all advice, do consult your own physician for guidance, as individual circumstances may vary, and that may change the best approach for you.
3. Maintain a healthy body weight. While BMI (Body Mass Index) is not a perfect system, it’s a system in popular use, and Dr. Tello recommends keeping a BMI between 18.5 and 24.9.
What’s your BMI? It takes into account your height and weight; here’s a Quick BMI Calculator for your convenience.
2. Keep a healthy level of physical activity—which ideally means at least 30 minutes per day vigorous activity, but obviously if you’re not used to this, take it slowly and build up over time. Even just small lifestyle changes (walking where possible, taking the stairs instead of the elevator where possible, etc) can add up to a big difference.
1. Enjoy a healthy diet. This is the single most important thing, and the best modern scientific consensus holds that the best diet contains plenty of vegetables, fruits and nuts, whole grains, and omega-3 fatty acids, while it avoids processed meats, sugar-sweetened beverages, trans fats (what are trans fats?), and too much sodium.
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What you need to know about the new weight loss drug Zepbound
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In a recent poll, KFF found that nearly half of U.S. adults were interested in taking a weight management drug like the increasingly popular Ozempic, Wegovy, and Mounjaro.
“I can understand why there would be widespread interest in these medications,” says Dr. Alyssa Lampe Dominguez, an endocrinologist and clinical assistant professor at the University of Southern California. “Obesity is a chronic disease that is very difficult to treat. And a lot of the medications that we previously used weren’t as effective.”
Now, there’s a new option available: In November 2023, the FDA approved Zepbound, another weight management medication, developed by the pharmaceutical company Eli Lilly. Zepbound is different from other drugs in many ways, including the fact that it’s proven to be the most effective option so far.
Keep reading to find out more about Zepbound, including who can take it, its side effects, and more.
What is Zepbound?
Zepbound, one of the brand names for tirzepatide, is an injectable drug with a maximum dosage of 15 mg per week. It’s based on incretin, a hormone that’s naturally released in the gut after a meal. (Mounjaro is another brand name for tirzepatide.)
Tirzepatide is considered a dual agonist because it activates the two primary incretin hormones: the glucagon-like peptide-1 (GLP-1) and gastric inhibitory peptide (GIP) hormones.
According to Dr. Katherine H. Saunders, an obesity medicine physician at Weill Cornell Medicine and co-founder of Intellihealth, tirzepatide is involved with several processes that regulate blood sugar, slow the removal of food from the stomach, and affect brain areas involved in appetite.
This means that people taking the medication feel less hungry and get fuller faster, leading to less food intake and, ultimately, weight loss.
How is Zepbound different from Ozempic?
The medications are different in many ways. Ozempic and Wegovy, which are both brand names for semaglutide, only target the GLP-1 hormone. Studies have shown that Zepbound can lead to a higher percentage of total body weight loss than semaglutide medications. In addition to being more effective, there is some evidence that Zepbound is overall more tolerable than Ozempic or Wegovy.
“I have seen overall lower rates in severity of side effects with the tirzepatide medications. Mounjaro [tirzepatide] in particular is the one that I’ve used up until this point, but there’s a thought that the GIP component of the medication actually decreases nausea,” adds Lampe Dominguez. “Anecdotally, patients that I have switched from semaglutide or Ozempic to Mounjaro say that they have less side effects with Mounjaro.”
How is Zepbound different from Mounjaro?
Zepbound and Mounjaro are the same medication—tirzepatide—but they’re approved for different conditions. Zepbound is FDA-approved for weight loss, while Mounjaro is approved for type 2 diabetes. (However, Mounjaro is also at times prescribed off-label for weight loss.)
What are some of Zepbound’s side effects?
According to the FDA, side effects include nausea, vomiting, diarrhea, constipation, stomach discomfort and pain, fatigue, and burping. See a more comprehensive list of side effects here.
Who can take Zepbound?
Zepbound is FDA-approved for adults with obesity (a BMI of 30 or greater) or who have a BMI of 27 or greater with at least one weight-related condition, like high blood pressure, type 2 diabetes, or high cholesterol.
“I tend to advise patients who don’t meet those criteria to not take these medications because we really don’t know what the risks are,” says Lampe Dominguez, adding that people with lower BMI weren’t included in the medication’s studies. “We don’t know if there are specific risks to using this medication at a lower body mass index [or] if there might be some negative outcomes.”
Both doctors agree that it’s important for people who are interested in starting any weight loss medication to talk to their doctors about the potential risks and benefits. For instance, the FDA notes that Zepbound has caused thyroid tumors in rats, and while it’s unknown if this could also happen to humans, the agency said the medication shouldn’t be used in patients with a personal or family history of medullary thyroid cancer.
“Zepbound is a powerful medication that can lead to severe side effects, vitamin deficiencies, a complete lack of appetite, or too much weight loss if prescribed without the appropriate personalization, education, and close monitoring,” says Saunders.
“With all of these medications, and particularly with Zepbound, we would want to make sure that [patients] don’t have a family history of a specific type of thyroid cancer called medullary thyroid cancer,” says Lampe Dominguez.
How long should people take Zepbound for?
“Anti-obesity medications like Zepbound are not meant for short-term weight loss, but long-term treatment of obesity, which is a chronic disease,” explains Saunders. “We prepare our patients to be on the medication (or some type of medical obesity treatment) long term for their chronic disease, which is only controlled for the duration of time they’re being treated.”
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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4 Tips To Stand Without Using Hands
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The “sit-stand” test, getting up off the floor without using one’s hands, is well-recognized as a good indicator of healthy aging, and predictor of longevity. But what if you can’t do it? Rather than struggling, there are exercises to strengthen the body to be able to do this vital movement.
Step by step
Teresa Shupe has been teaching Pilates professionally full-time for over 25 years, and here’s what she has to offer in the category of safe and effective ways of improving balance and posture while doing the sitting-to-standing movement:
- Squat! Doing squats (especially deep ones) regularly strengthens all the parts necessary to effectively complete this movement. If your knees aren’t up to it at first, do the squats with your back against a wall to start with.
- Roll! On your back, cross your feet as though preparing to stand, and rock-and-roll your body forwards. To start with you can “cheat” and use your fingertips to give a slight extra lift. This exercise builds mobility in the various necessary parts of the body, and also strengthens the core—as well as getting you accustomed to using your bodyweight to move your body forwards.
- Lift! This one’s focusing on that last part, and taking it further. Because it may be difficult to get enough momentum initially, you can practice by holding small weights in your hands, to shift your centre of gravity forwards a bit. Unlike many weights exercises, in this case you’re going to transition to holding less weight rather than more, though.
- Complete! Continue from the above, without weights now; use the blades of your feet to stand. If you need to, use your fingertips to give you a touch more lift and stability, and reduce the fingers that you use until you are using none.
For more on each of these as well as a visual demonstration, enjoy this short video:
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Further reading
For more exercises with a similar approach, check out:
Mobility As A Sporting Pursuit
Take care!
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16 Overlooked Autistic Traits In Women
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We hear a lot about “autism moms”, but Taylor Heaton is an autistic mom, diagnosed as an adult, and she has insights to share about overlooked autistic traits in women.
The Traits
- Difficulty navigating romantic relationships: often due to misreading signs
- Difficulty understanding things: including the above, but mostly: difficulty understanding subtext, when people leave things as “surely obvious”. Autistic women are likely to be aware of the possible meanings, but unsure which it might be, and may well guess wrongly.
- Masking: one of the reasons for the gender disparity in diagnosis is that autistic women are often better at “masking”, that is to say, making a conscious effort to blend in to allistic society—often as a result of being more societally pressured to do so.
- Honesty: often to a fault
- Copy and paste: related to masking, this is about consciously mirroring others in an effort to put them at ease and be accepted
- Being labelled sensitive and/or gifted: usually this comes at a young age, but the resultant different treatment can have a lifetime effect
- Secret stims: again related to masking, and again for the same reasons that displaying autistic symptoms is often treated worse in women, autistic women’s stims tend to be more subtle.
- Written communication: autistic women are often more comfortable with the written word than the spoken
- Leadership: autistic women will often gravitate to leadership roles, partly as a survival mechanism
- Gaslighting: oneself, e.g. “If this person did this without that, then I can to” (without taking into account that maybe the circumstances are different, or maybe they actually did lean on crutches that you didn’t know were there, etc).
- Inner dialogue: rich inner dialogue, but unable to express it outwardly—often because of the sheer volume of thoughts per second.
- Fewer female friends: often few friends overall, for that matter, but there’s often a gender imbalance towards male friends, or where there isn’t, towards more masculine friends at least.
- Feeling different: often a matter of feeling one does not meet standard expectations in some fashion
- School: autistic women are often academically successful
- Special interests: often more “socially accepted” interests than autistic men’s.
- Flirting: autistic women are often unsure how to flirt or what to do about it, which can result in simple directness instead
For more details on all of these, enjoy:
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Related reading:
You might like a main feature of ours from not long back:
Miss Diagnosis: Anxiety, ADHD, & Women
Take care!
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