Sleep Tracking, For Five Million Nights
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5 Sleep Phenotypes, By Actual Science
You probably know people can be broadly divided into “early birds” and “night owls”:
Early Bird Or Night Owl? Genes vs Environment
…and then the term “hummingbird” gets used for a person who flits between the two.
That’s three animals so far. If you read a book we reviewed recently, specifically this one:
The Power of When – by Dr. Michael Breus
…then you may have used the guide within to self-diagnose your circadian rhythm type (chronotype) according to Dr. Breus’s system, which divides people into bears, lions, wolves, and dolphins.
That’s another four animals. If you have a FitBit, it can “diagnose” you with being those and/or a menagerie of others, such as giraffe, hedgehog, parrot, and tortoise:
How Fitbit Developed the Sleep Profile Experience (Part 2 – Sleep Animals)
Five million nights
A team of researchers recently took a step away from this veritable zoo of 11 different animals and counting, and used a sophisticated modelling system to create a spatial-temporal map of people’s sleep habits, and this map created five main “islands” that people’s sleep habits could settle on, or sometimes move from island to island.
Those “five million nights” by the way? It was actually 5,095,798 nights! You might notice that would take from the 2020s to the 15970s to complete, so this was rather a matter of monitoring 33,152 individuals between January and October of the same year. Between them, they got those 5,095,798 nights of sleep (or in some cases, nights of little or no sleep, but still, they were there for the nights).
The five main phenotypes that the researchers found were:
- What we think of as “normal” sleep. In this phenotype, people get about eight hours of uninterrupted sleep for at least six days in a row.
- As above for half the nights, but they only sleep for short periods of time in bouts of less than three hours the other half.
- As per normal sleep, but with one interrupted night per week, consisting of a 5 hour sleep period and then broken sleep for a few more hours.
- As per normal sleep generally, but with occasional nights in which long bouts of sleep are separated by a mid-sleep waking.
- Sleeping for very short periods of time every night. This phenotype was the rarest the researchers found, and represents extremely disrupted sleep.
As you might suspect, phenotype 1 is healthier than phenotype 5. But that’s not hugely informational, as the correlation between getting good sleep and having good health is well-established. So, what did the study teach us?
❝We found that little changes in sleep quality helped us identify health risks. Those little changes wouldn’t show up on an average night, or on a questionnaire, so it really shows how wearables help us detect risks that would otherwise be missed.❞
More specifically,
❝We found that the little differences in how sleep disruptions occur can tell us a lot. Even if these instances are rare, their frequency is also telling. So it’s not just whether you sleep well or not – it’s the patterns of sleep over time where the key info hides❞
…and, which gets to the absolute point,
❝If you imagine there’s a landscape of sleep types, then it’s less about where you tend to live on that landscape, and more about how often you leave that area❞
In other words: if your sleep pattern is not ideal, that’s one thing and it’d probably be good to address it, by improving your sleep. However, if your sleep pattern changes phenotype without an obvious known reason why, this may be considered an alarm bell warning of something else that needs addressing, which may be an underlying illness or condition—meaning it can be worthwhile being a little extra vigilant when it comes to regular health screenings, in case something new has appeared.
Want to read more?
You can read the paper in full here:
Five million nights: temporal dynamics in human sleep phenotypes
Take care!
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Mind Gym – by Gary Mack and David Casstevens
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While this book seems to be mostly popular amongst young American college athletes and those around them (coaches, parents, etc) its applicability is a lot wider than that.
The thing is, as this book details, we don’t have to settle for less than optimal in our training—whatever “optimal” means for us, at any stage of life.
The style is largely narrative, and conveys a lot of ideas through anecdotes. They are probably true, but whether they occured entirely as-written or have been polished or embellished is not so important, as to to give food for thought, and reflection on how we can hone what we’re doing to work the best for us.
Nor is it just a long pep-talk, though it certainly has a motivational aspect. But rather, it covers also such things as the seven critical areas that we need to excel at if we want to be mentally robust, and—counterintuitively—the value of slowing down sometimes. The authors also talk about the importance of love, labor, and ongoing learning if we want a fulfilled life.
Bottom line: if you are engaged with any sport or sport-like endeavor that you’d like to be better at, this book will sharpen your training and development.
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Tranquility by Tuesday?
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I Know How She Does It: How Successful Women Make The Most of Their Time
This is Laura Vanderkam, author of “Tranquility By Tuesday” (amongst other books). Her “thing” is spending more time on what’s important, and less on what isn’t. Sounds simple, but she’s made a career out of it, so condensed here for you are…
Laura’s 7 Keys To Productivity
Key One: Plan your weeks on Fridays
You don’t want your Monday morning to be a “James Bond intro” (where everything is already in action and you’re just along for the ride, trying to figure out what’s going on). So, take some time last thing each Friday, to plan ahead for the following week!
Key Two: Measure what matters
Whatever that means to you. Laura tracks her use of time in half-hour blocks, and likes keeping track of streaks. For her, that means running daily and keeping a log of it. She also keeps track of the books she reads. For someone else it could be music practice, or a Duolingo streak, or eating fruit each day.
On which note…
“Dr. Greger’s Daily Dozen” is simpler than most nutrition trackers (where you must search for everything you eat, or scan barcodes for all ingredients).
Instead, it keeps track of whether you are having certain key health-giving foods often enough to maintain good health.
We might feature his method in a future edition of 10almonds, but for now, check the app out for yourself here:
Get Dr. Greger’s Daily Dozen on iOS / Get Dr. Greger’s Daily Dozen on Android
Dr. Greger’s Daily Dozen @ Nutrition Facts
Key Three: Figure out 2–3 “anchor” events for the weekend
Otherwise, it can become a bit of a haze and on Monday you find yourself thinking “where did the weekend go?”. So, plan some stuff! It doesn’t have to be anything out-of-this-world, just something that you can look forward to in advance and remember afterwards. It could be a meal out with your family, or a session doing some gardening, or a romantic night in with your partner. Whatever makes your life “living” and not passing you by!
Key Four: Tackle the toughest work first
You’ve probably heard about “swallowing frogs”. If not, there are various versions, usually attributed to Mark Twain.
Here’s one:
“If it’s your job to eat a frog, it’s best to do it first thing in the morning. And if it’s your job to eat two frogs, it’s best to eat the biggest one first.”
Top Productivity App “ToDoist” has an option for this, by the way!
Laura’s key advice here is: get the hard stuff done now! Before you get distracted or tired and postpone it to tomorrow (and then lather rinse repeat, so it never gets done)
10almonds Tip:
“But what if something’s really important but not as pressing as some less important, but more urgent tasks?”
Simple!
Set a timer (we love the Pomodoro method, by the way) and do one burst of the important-but-not-urgent task first. Then you can get to the more urgent stuff.
Repeat each day until the important-but-not-urgent task is done!
The 10almonds Team
Key Five: Use bits of time well
If, like many of us, you’ve a neverending “to read” list, use the 5–10 minute breaks that get enforced upon us periodically through the day!
- Use those few minutes before a meeting/phonecall!
- Use the time you spend waiting for public transport or riding on it!
- Use the time you spent waiting for a family member to finish doing a thing!
All those 5–10 minute bits soon add up… You might as well spend that time reading something you know will add value to your life, rather than browsing social media, for example.
Key Six: Make very short daily to-do lists
By “short”, Laura considers this “under 10 items”. Do this as the last part of your working day, ready for tomorrow. Not at bedtime! Bedtime is for winding down, not winding up
Key Seven: Have a bedtime
Laura shoots for 10:30pm, but whatever works for you and your morning responsibilities. Your morning responsibilities aren’t tied to a specific time? Lucky you, but try to keep a bedtime anyway. Otherwise, your daily rhythm can end up sliding around the clock, especially if you work from home!
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Intuitive Eating Might Not Be What You Think
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In our recent Expert Insights main features, we’ve looked at two fairly opposing schools of thought when it comes to managing what we eat.
First we looked at:
What Flexible Dieting Really Means
…and the notion of doing things imperfectly for greater sustainability, and reducing the cognitive load of dieting by measuring only the things that are necessary.
And then in opposition to that,
What Are The “Bright Lines” Of Bright Line Eating?
…and the notion of doing things perfectly so as to not go astray, and reducing the cognitive load of dieting by having hard-and-fast rules that one does not second-guess or reconsider later when hungry.
Today we’re going to look at Intuitive Eating, and what it does and doesn’t mean.
Intuitive Eating does mean paying attention to hunger signals (each way)
Intuitive Eating means listening to one’s body, and responding to hunger signals, whether those signals are saying “time to eat” or “time to stop”.
A common recommendation is to “check in” with one’s body several times per meal, reflecting on such questions as:
- Do I have hunger pangs? Would I seek food now if I weren’t already at the table?
- If I hadn’t made more food than I’ve already eaten so far, would that have been enough, or would I have to look for something else to eat?
- Am I craving any of the foods that are still before me? Which one(s)?
- How much “room” do I feel I still have, really? Am I still in the comfort zone, and/or am I about to pass into having overeaten?
- Am I eating for pleasure only at this point? (This is not inherently bad, by the way—it’s ok to have a little more just for pleasure! But it is good to note that this is the reason we’re eating, and take it as a cue to slow down and remember to eat mindfully, and enjoy every bite)
- Have I, in fact, passed the point of pleasure, and I’m just eating because it’s in front of me, or so as to “not be wasteful”?
See also: Interoception: Improving Our Awareness Of Body Cues
And for that matter: Mindful Eating: How To Get More Out Of What’s On Your Plate
Intuitive Eating is not “80:20”
When it comes to food, the 80:20 rule is the idea of having 80% of one’s diet healthy, and the other 20% “free”, not necessarily unhealthy, but certainly not moderated either.
Do you know what else the 80:20 food rule is?
A food rule.
Intuitive Eating doesn’t do those.
The problem with food rules is that they can get us into the sorts of problems described in the studies showing how flexible dieting generally works better than rigid dieting.
Suddenly, what should have been our free-eating 20% becomes “wait, is this still 20%, or have I now eaten so much compared to the healthy food, that I’m at 110% for my overall food consumption today?”
Then one gets into “Well, I’ve already failed to do 80:20 today, so I’ll try again tomorrow [and binge meanwhile, since today is already written off]”
See also: Eating Disorders: More Varied (And Prevalent) Than People Think
It’s not “eat anything, anytime”, either
Intuitive Eating is about listening to your body, and your brain is also part of your body.
- If your body is saying “give me sugar”, your brain might add the information “fruit is healthier than candy”.
- If your body is saying “give me fat”, your brain might add the information “nuts are healthier than fried food”
- If your body is saying “give me salt”, your brain might add the information “kimchi is healthier than potato chips”
That doesn’t mean you have to swear off candy, fried food, or potato chips.
But it does mean that you might try satisfying your craving with the healthier option first, giving yourself permission to have the less healthy option afterwards if you still want it (you probably won’t).
See also:
I want to eat healthily. So why do I crave sugar, salt and carbs?
Want to know more about Intuitive Eating?
You might like this book that we reviewed previously:
Intuitive Eating – by Evelyn Tribole and Elyse Resch
Enjoy!
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Stop Overthinking – by Nick Trenton
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This book is exactly what it says on the tin. We are given twenty-three techniques to relieve stress, stop negative spirals, declutter your mind, and focus on the present, in the calm pursuit of good mental health and productivity.
The techniques are things like the RAIN technique above, so if you liked that, you’ll love this. Being a book rather than a newsletter, it also takes the liberty of going into much more detail—hence the 200 pages for 23 techniques. Unlike many books, it’s not packed in fluff either. It’s that perfect combination of “to the point” and “very readable”.
If you’ve read this far into the review and you’re of two minds about whether or not this book could be useful to you, then you just might be overthinking it
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You, Happier – by Dr. Daniel Amen
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The implicit question “what’s your brain type?” makes this book sound a little like a horoscope for science-enjoyers, but really, the “brain type” in question is simply a way of expressing which neurochemicals one’s brain makes most and/or least easily.
That’s something that a) really does differ from one person to another b) isn’t necessarily fixed forever, but will tend to remain mostly the same most of the time for most people.
And yes, the book does cover figuring out which neurotransmitter(s) it might be for you. On a secondary level, it also talks about more/less active parts of the brain for each of us, but the primary focus is on neurotransmitters.
It’s easy to assume “everyone wants more [your favorite neurotransmitter here]” but in fact, most people most of the time have most of what they need.
For those of us who don’t, those of us who perhaps have to work more to keep our level(s) of one or more neurotransmitters where they should be, this book is a great guide to optimizing aspects of our diet and lifestyle to compensate for what our brains might lack—potentially reducing the need to go for pharmaceutical approaches.
The style of the book is very much pop-science, but it is all well-informed and well-referenced.
Bottom line: if you sometimes (or often!) think “if only my brain would just make/acknowledge more [neurotransmitter], this book is for you.
Click here to check out You, Happier, and discover a happier you!
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Not quite an introvert or an extrovert? Maybe you’re an ambivert
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Our personalities are generally thought to consist of five primary factors: openness to experience, conscientiousness, extroversion, agreeableness and neuroticism, with each of us ranking low to high for each.
Extroversion is one of the Big Five personality traits. Big 5 personality traits graphic Those who rank high in extroversion, known as extroverts, typically focus on their external world. They tend to be more optimistic, recharge by socialising and enjoy social interaction.
On the other end of the spectrum, introverts are more likely to be quiet, deep thinkers, who recharge by being alone and learn by observing (but aren’t necessarily shy).
But what if you’re neither an introvert or extrovert – or you’re a bit of both? Another category might fit better: ambiverts. They’re the middle of the spectrum and are also called “social introverts”.
What exactly is an ambivert?
The term ambivert emerged in 1923. While it was not initially embraced as part of the introvert-extrovert spectrum, more recent research suggests ambiverts are a distinct category.
Ambiverts exhibit traits of both extroverts and introverts, adapting their behaviour based on the situation. It may be that they socialise well but need solitude and rest to recharge, and they intuitively know when to do this.
Ambiverts seems to have the following characteristics:
- good communication skills, as a listener and speaker
- ability to be a peacemaker if conflict occurs
- leadership and negotiation skills, especially in teams
- compassion and understanding for others.
Some research suggests ambiverts make up a significant portion of the population, with about two-thirds of people falling into this category.
What makes someone an ambivert?
Personality is thought to be 50% inherited, with the remaining being influenced by environmental factors and individual experiences.
Emerging research has found physical locations of genes on chromosomes closely aligned with extroversion-introversion traits.
So, chances are, if you are a blend of the two styles as an ambivert, one of your parents may be too.
What do ambiverts tend to be good at?
Ambiverts are flexible with talking and also listening. Cotton Bro Studios/Pexels One area of research focus in recent decades has been personality type and job satisfaction. One study examined 340 introverts, extroverts and ambiverts in sales careers.
It has always been thought extroverts were more successful with sales. However, the author found ambiverts were more influential and successful.
They may have a sales advantage because of their ability to read the situation and modify their behaviour if they notice a customer is not interested, as they’re able to reflect and adapt.
Ambiverts stress less than introverts
Generally, people lower in extroversion have higher stress levels. One study found introverts experience more stress than both ambiverts and extroverts.
It may be that highly sensitive or introverted individuals are more susceptible to worry and stress due to being more perfectionistic.
Ambiverts are adept at knowing when to be outgoing and when to be reflective, showcasing a high degree of situational awareness. This may contribute to their overall wellbeing because of how they handle stress.
What do ambiverts tend to struggle with?
Ambiverts may overextend themselves attempting to conform or fit in with many social settings. This is termed “overadaptation” and may force ambiverts to feel uncomfortable and strained, ultimately resulting in stress or burnout.
Ambiverts tend to handle stress well but feel strained when overadapting. Cottonbro Studios/Pexels But personality traits aren’t fixed
Regardless of where you sit on the scale of introversion through to extroversion, the reality is it may not be fixed. Different situations may be more comfortable for introverts to be social, and extroverts may be content with quieter moments.
And there are also four other key personality traits – openness to experience, conscientiousness, agreeableness and neuroticism – which we all possess in varying levels, and are expressed in different ways, alongside our levels of extroversion.
There is also evidence our personality traits can change throughout our life spans are indeed open to change.
Peta Stapleton, Associate Professor in Psychology, Bond University
This article is republished from The Conversation under a Creative Commons license. Read the original article.
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