Heal & Reenergize Your Brain With Optimized Sleep Cycles

10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

Sometimes 8 hours sleep can result in grogginess while 6 hours can result in waking up fresh as a daisy, so what gives? Dr. Tracey Marks explains, in this short video.

Getting more than Zs in

Sleep involves 90-minute cycles, usually in 4 stages:

  1. Stage 1: (drowsy state): brief muscle jerks; lasts a few minutes.
  2. Stage 2: (light sleep): sleep spindles for memory consolidation; 50% of total sleep.
  3. Stage 3 (deep sleep): tissue repair, immune support, brain toxin removal via the glymphatic system.
  4. Stage 4 (REM sleep): emotional processing, creativity, problem-solving, and dreaming.

Some things can disrupt some or all of those. To give a few common examples:

  • Alcohol: impairs REM sleep.
  • Caffeine: hinders deep sleep even if consumed hours before bed.
  • Screentime: delays sleep onset due to blue light (but not by much); the greater problem is that it can also disrupt REM sleep due to mental stimulation.

To optimize things, Dr. Marks recommends:

  • 90-minute rule: plan sleep to align with full cycles (e.g: 22:30 to 06:00 = 7½ hours, which is 5x 90-minute cycles).
  • Smart alarms: use sleep-tracking apps with built-in alarm, to wake you up during light sleep phases.
  • Strategic naps: keep naps to 20 minutes or a full 90-minute cycle.
  • Pink noise: improves deep sleep.
  • Meal timing: avoid eating within 3 hours of bedtime.
  • Natural light: get morning light exposure in the morning to strengthen circadian rhythm.

For more on all of this, enjoy:

Click Here If The Embedded Video Doesn’t Load Automatically!

Want to learn more?

You might also like to read:

Calculate (And Enjoy) The Perfect Night’s Sleep

Take care!

Don’t Forget…

Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

Recommended

  • How Internal Organs Can Be Affected By Spicy Foods (Doctor Explains)
  • Ikigai – by Héctor García and Francesc Miralles
    Ikigai: Find your purpose in life and unlock the secrets to healthy longevity. This book offers science-based suggestions for a fulfilling and healthy lifestyle.

Learn to Age Gracefully

Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Rebuilding Milo – by Dr. Aaron Horschig

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    The author, a doctor of physical therapy, also wrote another book that we reviewed a while ago, “The Squat Bible” (which is also excellent, by the way). This time, it’s all about resistance training in the context of fixing a damaged body.

    Resistance training is, of course, very important for general health, especially as we get older. However, it’s easy to do it wrongly and injure oneself, and indeed, if one is carrying some injury and/or chronic pain, it becomes necessary to know how to fix that before continuing—without just giving up on training, because that would be a road to ruin in terms of muscle and bone maintenance.

    The book explains all the necessary anatomy, with clear illustrations too. He talks equipment, keeping things simple and practical, letting the reader know which things actually matter in terms of quality, and what things are just unnecessary fanciness and/or counterproductive.

    Most of the book is divided into chapters per body part, e.g. back pain, shoulder pain, ankle pain, hip pain, knee pain, etc; what’s going on, and how to fix it to rebuild it stronger.

    The style is straightforward and simple, neither overly clinical nor embellished with overly casual fluff. Just, clear simple explanations and instructions.

    Bottom line: if you’d like to get stronger and/or level up your resistance training, but are worried about an injury or chronic condition, this book can set you in good order.

    Click here to check out Rebuilding Milo, and rebuild yourself!

    Share This Post

  • Hazelnuts vs Pistachios – Which is Healthier?

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Our Verdict

    When comparing hazelnuts to pistachios, we picked the hazelnuts.

    Why?

    An argument could be made for either, depending on what we prioritize! So there was really no wrong answer here today, but it is good to know what each nut’s strengths are:

    In terms of macros, pistachios have more fiber, carbs, protein, and (mostly healthy) fat. That does make them the “more food per food” option, but it’s worth noting that while hazelnuts have more fiber, they also have a higher margin of difference when it comes to their greater carb count, and resultantly, hazelnuts do have the lower glycemic index. That said, they’re still both low-GI foods, so we’ll call this section a win for pistachios overall.

    When it comes to vitamins, hazelnuts have more of vitamins B3, B5, B9, C, E, K, and choline, while pistachios have more of vitamins A, B1, B2, and B6. So, a fair 7:4 win for hazelnuts here.

    In the category of minerals, hazelnuts have more calcium, copper, iron, magnesium, manganese, and zinc, while pistachios have more phosphorus, potassium, and selenium. A clear 6:3 win for hazelnuts.

    In short, both are good sources of many nutrients, so choose according to what you want to prioritize, or better yet, enjoy both.

    Want to learn more?

    You might like to read:

    Why You Should Diversify Your Nuts

    Take care!

    Share This Post

  • Whole – by Dr. T. Colin Campbell

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    Most of us have at least a broad idea of what we’re supposed to be eating, what nutrients we should be getting. Many of us look at labels, and try to get our daily dose of this and that and the other.

    And what we don’t get from food? There are supplements.

    Dr. Campbell thinks we can do better:

    Perhaps most critical in this book, where it stands out from others (we may already know, for example, that we should try to eat diverse plants and whole foods) is its treatment of why many supplements aren’t helpful.

    We tend to hear “supplements are a waste of money” and sometimes they are, sometimes they aren’t. How to know the difference?

    Key: things directly made from whole food sources will tend to be better. Seems reasonable, but… why? The answer lies in what else those foods contain. An apple may contain a small amount of vitamin C, less than a vitamin C tablet, but also contains a whole host of other things—tiny phytonutrients, whose machinations are mostly still mysteries to us—that go with that vitamin C and help it work much better. Lab-made supplements won’t have those.

    There’s a lot more to the book… A chunk of which is a damning critique of the US healthcare system (the author argues it would be better named a sicknesscare system). We also learn about getting a good balance of macro- and micronutrients from our diet rather than having to supplement so much.

    The style is conversational, while not skimping on the science. The author has had more than 150 papers published in peer-reviewed journals, and is no stranger to the relevant academia. Here, however, he focuses on making things easily comprehensible to the lay reader.

    In short: if you’ve ever wondered how you’re doing at getting a good nutritional profile, and how you could do better, this is definitely the book for you.

    Click here to check out “Whole” on Amazon today, and level up your daily diet!

    Share This Post

Related Posts

  • How Internal Organs Can Be Affected By Spicy Foods (Doctor Explains)
  • Why We Get Fat: And What to Do About It – by Gary Taubes

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    We’ve previously reviewed Taubes’ “The Case Against Sugar“. What does this one bring differently?

    Mostly, it’s a different focus. Unsurprisingly, Taubes’ underlying argument is the same: sugar is the biggest dietary health hazard we face. However, this book looks at it specifically through the lens of weight loss, or avoiding weight gain.

    Taubes argues for low-carb in general; he doesn’t frame it specifically as the ketogenic diet here, but that is what he is advocating. However, he also acknowledges that not all carbs are created equal, and looks at several categories that are relatively better or worse for our insulin response, and thus, fat management.

    If the book has a fault it’s that it does argue a bit too much for eating large quantities of meat, based on Weston Price’s outdated and poorly-conducted research. However, if one chooses to disregard that, the arguments for a low-carb diet for weight management remain strong.

    Bottom line: if you’d like to cut some fat without eating less (or exercising more), this book offers a good, well-explained guide for doing so.

    Click here to check out Why We Get Fat, and manage yours!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Stretching & Mobility – by James Atkinson

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    “I will stretch for just 10 minutes per day”, we think, and do our best. Then there are a plethora of videos saying “Stretching mistakes that you are making!” and it turns out we haven’t been doing them in a way that actually helps.

    This book fixes that. Unlike some books of the genre, it’s not full of jargon and you won’t need an anatomy and physiology degree to understand it. It is, however, dense in terms of the information it gives—it’s not padded out at all; it contains a lot of value.

    The stretches are all well-explained and well-illustrated; the cover art will give you an idea of the anatomical illustration style contained with in.

    Atkinson also gives workout plans, so that we know we’re not over- or under-training or trying to do too much or missing important things out.

    Bottom line: if you’re looking to start a New Year routine to develop better suppleness, this book is a great primer for that.

    Click here to check out Stretching and Mobility, and improve yours!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails:

  • Food for Life – by Dr. Tim Spector

    10almonds is reader-supported. We may, at no cost to you, receive a portion of sales if you purchase a product through a link in this article.

    This book is, as the author puts it, “an eater’s guide to food and nutrition”. Rather than telling us what to eat or not eat, he provides an overview of what the latest science has to say about various foods, and leaves us to make our own informed decisions.

    He also stands firmly by the “personalized nutrition” idea that he introduced in his previous book which we reviewed the other day, and gives advice on what tests we might like to perform.

    The writing style is accessible, without shying away from reference to hard science. Dr. Spector provides lots of information about key chemicals, genes, gut bacteria, and more—as well as simply providing a very enjoyable read along the way.

    Bottom line: if you’d like a much better idea of what food is (and isn’t) doing what, this book is an invaluable resource.

    Click here to check out Food for Life, and make the best decisions for you!

    Don’t Forget…

    Did you arrive here from our newsletter? Don’t forget to return to the email to continue learning!

    Learn to Age Gracefully

    Join the 98k+ American women taking control of their health & aging with our 100% free (and fun!) daily emails: