Non-Sleep Deep Rest: A Neurobiologist’s Take
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How to get many benefits of sleep, while awake!
Today we’re talking about Dr. Andrew Huberman, a neuroscientist and professor in the department of neurobiology at Stanford School of Medicine.
He’s also a popular podcaster, and as his Wikipedia page notes:
❝In episodes lasting several hours, Huberman talks about the state of research in a specific topic, both within and outside his specialty❞
Today, we won’t be taking hours, and we will be taking notes from within his field of specialty (neurobiology). Specifically, in this case:
Non-Sleep Deep Rest (NSDR)
What is it? To quote from his own dedicated site on the topic:
❝What is NSDR (Yoga Nidra)? Non-Sleep Deep Rest, also known as NSDR, is a method of deep relaxation developed by Dr. Andrew Huberman, a neuroscientist at Stanford University School of Medicine.
It’s a process that combines controlled breathing and detailed body scanning to bring you into a state of heightened awareness and profound relaxation. The main purpose of NSDR is to reduce stress, enhance focus, and improve overall well-being.❞
While it seems a bit bold of Dr. Huberman to claim that he developed yoga nidra, it is nevertheless reassuring to get a neurobiologist’s view on this:
How it works, by science
Dr. Huberman says that by monitoring EEG readings during NSDR, we can see how the brain slows down. Measurably!
- It goes from an active beta range of 13–30 Hz (normal waking) to a conscious meditation state of an alpha range of 8–13 Hz.
- However, with practice, it can drop further, into a theta range of 4–8 Hz.
- Ultimately, sustained SSDR practice can get us to 0.5–3 Hz.
This means that the brain is functioning in the delta range, something that typically only occurs during our deepest sleep.
You may be wondering: why is delta lower than theta? That’s not how I remember the Greek alphabet being ordered!
Indeed, while the Greek alphabet goes alpha beta gamma delta epsilon zeta eta theta (and so on), the brainwave frequency bands are:
- Gamma = concentrated focus, >30 Hz
- Beta = normal waking, 13–30 Hz
- Alpha = relaxed state, 8–13 Hz
- Theta = light sleep, 4–8 Hz
- Delta = deep sleep, 1–4 Hz
Source: Sleep Foundation ← with a nice infographic there too
NSDR uses somatic cues to engage our parasympathetic nervous system, which in turn enables us to reach those states. The steps are simple:
- Pick a time and place when you won’t be disturbed
- Lie on your back and make yourself comfortable
- Close your eyes as soon as you wish, and now that you’ve closed them, imagine closing them again. And again.
- Slowly bring your attention to each part of your body in turn, from head to toe. As your attention goes to each part, allow it to relax more.
- If you wish, you can repeat this process for another wave, or even a third.
- Find yourself well-rested!
Note: this engagement of the parasympathetic nervous system and slowing down of brain activity accesses restorative states not normally available while waking, but 10 minutes of NSDR will not replace 7–9 hours of sleep; nor will it give you the vital benefits of REM sleep specifically.
So: it’s an adjunct, not a replacement
Want to try it, but not sure where/how to start?
When you’re ready, let Dr. Huberman himself guide you through it in this shortish (10:49) soundtrack:
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Want to try it, but not right now? Bookmark it for later
Take care!
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Rainbow Roasted Potato Salad
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This salad has potatoes in it, but it’s not a potato salad as most people know it. The potatoes are roasted, but in a non-oily-dressing, that nevertheless leaves them with an amazing texture—healthy and delicious; the best of both worlds. And the rest? We’ve got colorful vegetables, we’ve got protein, we’ve got seasonings full of healthy spices, and more.
You will need
- 1½ lbs new potatoes (or any waxy potatoes; sweet potato is also a great option; don’t peel them, whichever you choose) cut into 1″ chunks
- 1 can / 1 cup cooked cannellini beans (or your preferred salad beans)
- 1 carrot, grated
- 2 celery stalks, finely chopped
- 3 spring onions, finely chopped
- ½ small red onion, finely sliced
- 2 tbsp white wine vinegar
- 1 tbsp balsamic vinegar
- 1 tbsp lemon juice
- 1 tbsp nutritional yeast
- 1 tsp garlic powder
- 1 tsp black pepper
- ½ tsp red chili powder
- We didn’t forget salt; it’s just that with the natural sodium content of the potatoes plus the savory flavor-enhancing properties of the nutritional yeast, it’s really not needed here. Add if you feel strongly about it, opting for low-sodium salt, or MSG (which has even less sodium).
- To serve: 1 cup basil pesto (we’ll do a recipe one of these days; meanwhile, store-bought is fine, or you can use the chermoula we made the other day, ignoring the rest of that day’s recipe and just making the chermoula component)
Method
(we suggest you read everything at least once before doing anything)
1) Preheat the oven as hot as it goes!
2) Combine the potatoes, white wine vinegar, nutritional yeast, garlic powder, black pepper, and red chili powder, mixing thoroughly (but gently!) to coat.
3) Spread the potatoes on a baking tray, and roast in the middle of the oven (for best evenness of cooking); because of the small size of the potato chunks, this should only take about 25 minutes (±5mins depending on your oven); it’s good to turn them halfway through, or at least jiggle them if you don’t want to do all that turning.
4) Allow to cool while still on the baking tray (this allows the steam to escape immediately, rather than the steam steaming the other potatoes, as it would if you put them in a bowl).
5) Now put them in a serving bowl, and mix in the beans, vegetables, balsamic vinegar, and lemon juice, mixing thoroughly but gently
6) Add generous lashings of the pesto to serve; it should be gently mixed a little too, so that it’s not all on top.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- White Potato vs Sweet Potato – Which is Healthier?
- Eat More (Of This) For Lower Blood Pressure
- Our Top 5 Spices: How Much Is Enough For Benefits?
Take care!
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Gut-Healthy Sunset Soup
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So-called for its gut-healthy ingredients, and its flavor profile being from the Maghreb (“Sunset”) region, the western half of the N. African coast.
You will need
- 1 can chickpeas (do not drain)
- 1 cup low-sodium vegetable stock
- 1 small onion, finely chopped
- 1 carrot, finely chopped
- 2 tbsp sauerkraut, drained and chopped (yes, it is already chopped, but we want it chopped smaller so it can disperse evenly in the soup)
- 2 tbsp tomato paste
- 1 tbsp harissa paste (adjust per your heat preference)
- 1 tbsp ras el-hanout
- ¼ bulb garlic, crushed
- Juice of ½ lemon
- ¼ tsp MSG or ½ tsp low-sodium salt
- Extra virgin olive oil
- Optional: herb garnish; we recommend cilantro or flat-leaf parsley
Method
(we suggest you read everything at least once before doing anything)
1) Heat a little oil in a sauté pan or similar (something suitable for combination cooking, as we’ll be frying first and then adding liquids), and fry the onion and carrot until the onion is soft and translucent; about 5 minutes.
2) Stir in the garlic, tomato paste, harissa paste, and ras el-hanout, and fry for a further 1 minute.
3) Add the remaining ingredients* except the lemon juice. Bring to the boil and then simmer for 5 minutes.
*So yes, this includes adding the “chickpea water” also called “aquafaba”; it adds flavor and also gut-healthy fiber in the form of oligosaccharides and resistant starches, which your gut microbiota can use to make short-chain fatty acids, which improve immune function and benefit the health in more ways than we can reasonably mention as a by-the-way in a recipe.
4) Stir in the lemon juice, and serve, adding a herb garnish if you wish.
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- Our Top 5 Spices: How Much Is Enough For Benefits? ← today’s recipe scored 5/5 of these, plus quite a few more! Remember that ras el-hanout is a spice blend, so if you’re thinking “wait, where’s the…?” then it’s in the ras el-hanout 😉
- Making Friends With Your Gut (You Can Thank Us Later)
- Lycopene’s Benefits For The Gut, Heart, Brain, & More ← not to be underestimated!
Take care!
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Dopamine Nation – by Dr. Anna Lembke
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We live in an age of abundance, though it often doesn’t feel like it. Some of that is due to artificial scarcity, but a lot of it is due to effectively whiting out our dopamine circuitry through chronic overuse.
Psychiatrist Dr. Anna Lembke explores the neurophysiology of pleasure and pain, and how each can (and does) lead to the other. Is the answer to lead a life of extreme neutrality? Not quite.
Rather, simply by being more mindful of how we seek each (yes, both pleasure and pain), we can leverage our neurophysiology to live a better, healthier life—and break/avoid compulsive habits, while we’re at it.
That said, the book itself is quite compelling reading, but as Dr. Lembke shows us, that certainly doesn’t have to be a bad thing.
Bottom line: if you sometimes find yourself restlessly cycling through the same few apps (or TV channels) looking for dopamine that you’re not going to find there, this is the book for you.
Click here to check out Dopamine Nation, and get a handle on yours!
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Progesterone Menopausal HRT: When, Why, And How To Benefit
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Progesterone doesn’t get talked about as much as other sex hormones, so what’s its deal? Dr. Heather Hirsch explains:
Menopausal progesterone
Dr. Hirsch considers progesterone essential for menopausal women who are taking estrogen and have an intact uterus, to keep conditions at bay such as endometriosis or even uterine cancer.
However, she advises it is not critical in those without a uterus, unless there was a previous case of one of the above conditions.
10almonds addition: on the other hand, progesterone can still be beneficial from a metabolic and body composition standpoint, so do speak with your endocrinologist about it.
As an extra bonus: while not soporific (it won’t make you sleepy), taking progesterone at night will improve the quality of your sleep once you do sleep, so that’s a worthwhile thing for many!
Dr. Hirsch also discusses the merits of continuous vs cyclic use; continuous maintains the above sleep benefits, for example, while cyclic use can help stabilize menstrual patterns in late perimenopause and early menopause.
For more on these things, plus discussion of different types of progesterone, enjoy:
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Want to learn more?
You might also like to read:
- What Does “Balance Your Hormones” Even Mean?
- What You Should Have Been Told About The Menopause Beforehand
- HRT: Bioidentical vs Animal – A Tale Of Two Approaches
Take care!
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Love Sense – by Dr. Sue Johnson
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Let’s quickly fact-check the subtitle:
- Is it revolutionary? It has a small element of controversy, but mostly no
- Is it new? No, it is based on science from the 70s that was expanded in the 80s and 90s and has been, at most, tweaked a little since.
- Is it science? Yes! It is so much science. This book comes with about a thousand references to scientific studies.
What’s the controversy, you ask? Dr. Johnson asserts, based on our (as a species) oxytocin responsiveness, that we are biologically hardwired for monogamy. This is in contrast to the prevailing scientific consensus that we are not.
Aside from that, though, the book is everything you could expect from an expert on attachment theory with more than 35 years of peer-reviewed clinical research, often specifically for Emotionally Focused Therapy (EFT), which is her thing.
The writing style is similar to that of her famous “Hold Me Tight: Seven Conversations For A Lifetime Of Love”, a very good book that we reviewed previously. It can be a little repetitive at times in its ideas, but this is largely because she revisits some of the same questions from many angles, with appropriate research to back up her advice.
Bottom line: if you are the sort of person who cares to keep working to improve your romantic relationship (no matter whether it is bad or acceptable or great right now), this book will arm you with a lot of deep science that can be applied reliably with good effect.
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Green Paneer Flatbreads
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These are versatile little snacks that can be eaten alone or served as part of a buffet; great for warm summer nights!
You will need
- 1 lb block of paneer (you can also use our plant-based high-protein paneer recipe)
- 7 oz unsweetened yogurt (your choice what kind; plant-based is fine; live cultured is best)
- 1 tomato, thinly sliced
- ½ red onion, thinly sliced
- 2 oz spinach leaves
- 1 tbsp lime juice
- 1 tsp red chili powder
- 4 wholewheat flatbreads
And then the marinade:
- 3 oz spinach
- ½ bulb garlic
- 1 tsp cumin seeds
- 1 tsp coriander seeds
- 1 tsp chili flakes
- ½ tsp MSG or 1 tsp low-sodium salt (MSG being the preferable and healthier option)
- 2 tbsp extra virgin olive oil
- Juice of ½ lime
Method
(we suggest you read everything at least once before doing anything)
1) Blend the marinade ingredients in a blender.
2) Cut the paneer into long cuboid chapes (similar to fish fingers) and put them in a bowl. Pour ⅔ of the marinade over them, and gently mix to coat evenly.
3) Heat a ridged griddle pan, and when hot, add the paneer and cook for 1–2 minutes each side without stirring, jiggling, or doing anything other than turning once per uncooked side.
4) Combine the onion, tomato, spinach leaves, lime choice, and chili powder to make the salad.
5) Add the remaining marinade to the yogurt to make a green dip.
6) Toast your flatbreads under the grill.
5) Assemble, putting the paneer and salad with a spoonful of the dip on the flatbread, and serve:
Enjoy!
Want to learn more?
For those interested in some of the science of what we have going on today:
- High-Protein Plant-Based Paneer
- Why You’re Probably Not Getting Enough Fiber (And How To Fix It)
- Our Top 5 Spices: How Much Is Enough For Benefits?
- Monosodium Glutamate: Sinless Flavor-Enhancer Or Terrible Health Risk?
Take care!
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: