The 6 Dimensions Of Sleep (And Why They Matter)

How Well Do You Sleep? Dr. Marie-Pierre St-Onge from Columbia University’s Center of Excellence for Sleep and Circadian Research explores the impact of lifestyle on cardio-metabolic risk factors.
Exploring the six dimensions of sleep.

How Good Is Your Sleep, Really?

Dr. Marie Pierre St. Onge is an expert in sleep behavior and how different dimensions of sleep matter for overall health.

This is Dr. Marie-Pierre St-Onge, Director of Columbia University’s Center of Excellence for Sleep and Circadian Research.

The focus of Dr. St-Onge’s research is the study of the impact of lifestyle, especially sleep and diet, on cardio-metabolic risk factors.

She conducts clinical research combining her expertise on sleep, nutrition, and energy regulation.

What kind of things do her studies look at?

Her work focuses on questions about…

  • The role of circadian rhythms (including sleep duration and timing)
  • Meal timing and eating patterns

…and their impact on cardio-metabolic risk.

What does she want us to know?

First things first, when not to worry:

❝Getting a bad night’s sleep once in a while isn’t anything to worry about. That’s what we would describe as transient insomnia. Chronic insomnia occurs when you spend three months or more without regular sleep, and that is when I would start to be concerned.❞

But… as prevention is (as ever) better than cure, she also advises that we do pay attention to our sleep! And, as for how to do that…

The Six Dimensions of Sleep

One useful definition of overall sleep health is the RU-Sated framework, which assesses six key dimensions of sleep that have been consistently associated with better health outcomes. These are:

  • regularity
  • satisfaction with sleep
  • alertness during waking hours
  • timing of sleep
  • efficiency of sleep
  • duration of sleep

You’ll notice that some of these things you can only really know if you use a sleep-monitoring app. She does recommend the use of those, and so do we!

We reviewed and compared some of the most popular sleep-monitoring apps! You can check them out here: Time For Some Pillow Talk

You also might like…

We’re not all the same with regard to when is the best time for us to sleep, so:

Use This Sleep Cycle Calculator To Figure Out the Optimal Time for You To Go to Bed and Wake Up

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What’s happening in the health world…

More to come tomorrow!

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  • Stop Cancer 20 Years Ago

    Dr. Jenn Simmons shares vital tips on preventing cancer and inflammation, advocating for lifestyle changes and proactive health management at any age.

    Get Abreast And Keep Abreast

    This is Dr. Jenn Simmons. Her specialization is integrative oncology, as she—then a breast cancer surgeon—got breast cancer, decided the system wasn’t nearly as good from the patients’ side of things as from the doctors’ side, and took to educate herself, and now others, on how things can be better.

    What does she want us to know?

    Start now

    If you have breast cancer, the best time to start adjusting your lifestyle might be 20 years ago, but the second-best time is now. We realize our readers with breast cancer (or a history thereof) probably have indeed started already—all strength to you.

    What this means for those of us without breast cancer (or a history therof) is: start now

    Even if you don’t have a genetic risk factor, even if there’s no history of it in your family, there’s just no reason not to start now.

    Start what, you ask? Taking away its roots. And how?

    Inflammation as the root of cancer

    To oversimplify: cancer occurs because an accidentally immortal cell replicates and replicates and replicates and takes any nearby resources to keep on going. While science doesn’t know all the details of how this happens, it is a factor of genetic mutation (itself a normal process, without which evolution would be impossible), something which in turn is accelerated by damage to the DNA. The damage to the DNA? That occurs (often as not) as a result of cellular oxidation. Cellular oxidation is far from the only genotoxic thing out there, and a lot of non-food “this thing causes cancer” warnings are usually about other kinds of genotoxicity. But cellular oxidation is a big one, and it’s one that we can fight vigorously with our lifestyle.

    Because cellular oxidation and inflammation go hand-in-hand, reducing one tends to reduce the other. That’s why so often you’ll see in our Research Review Monday features, a line that goes something like:

    “and now for those things that usually come together: antioxidant, anti-inflammatory, anticancer, and anti-aging”

    So, fight inflammation now, and have a reduced risk of a lot of other woes later.

    See: How to Prevent (or Reduce) Inflammation

    Don’t settle for “normal”

    People are told, correctly but not always helpfully, such things as:

    • It’s normal to have less energy at your age
    • It’s normal to have a weaker immune system at your age
    • It’s normal to be at a higher risk of diabetes, heart disease, etc

    …and many more. And these things are true! But that doesn’t mean we have to settle for them.

    We can be all the way over on the healthy end of the distribution curve. We can do that!

    (so can everyone else, given sufficient opportunity and resources, because health is not a zero-sum game)

    If we’re going to get a cancer diagnosis, then our 60s are the decade where we’re most likely to get it. Earlier than that and the risk is extant but lower; later than that and technically the risk increases, but we probably got it already in our 60s.

    So, if we be younger than 60, then now’s a good time to prepare to hit the ground running when we get there. And if we missed that chance, then again, the second-best time is now:

    See: Focusing On Health In Our Sixties

    Fast to live

    Of course, anything can happen to anyone at any age (alas), but this is about the benefits of living a fasting lifestyle—that is to say, not just fasting for a 4-week health kick or something, but making it one’s “new normal” and just continuing it for life.

    This doesn’t mean “never eat”, of course, but it does mean “practice intermittent fasting, if you can”—something that Dr. Simmons strongly advocates.

    See: Intermittent Fasting: We Sort The Science From The Hype

    While this calls back to the previous “fight inflammation”, it deserves its own mention here as a very specific way of fighting it.

    It’s never too late

    All of the advices that go before a cancer diagnosis, continue to stand afterwards too. There is no point of “well, I already have cancer, so what’s the harm in…?”

    The harm in it after a diagnosis will be the same as the harm before. When it comes to lifestyle, preventing a cancer and preventing it from spreading are very much the same thing, which is also the same as shrinking it. Basically, if it’s anticancer, it’s anticancer, no matter whether it’s before, during, or after.

    Dr. Simmons has seen too many patients get a diagnosis, and place their lives squarely in the hands of doctors, when doctors can only do so much.

    Instead, Dr. Simmons recommends taking charge of your health as best you are able, today and onwards, no matter what. And that means two things:

    1. Knowing stuff
    2. Doing stuff

    So it becomes our responsibility (and our lifeline) to educate ourselves, and take action accordingly.

    Want to know more?

    We recently reviewed her book, and heartily recommend it:

    The Smart Woman’s Guide to Breast Cancer – by Dr. Jenn Simmons

    Enjoy!