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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Heal & Reenergize Your Brain With Optimized Sleep Cycles
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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:
- Stage 1: (drowsy state): brief muscle jerks; lasts a few minutes.
- Stage 2: (light sleep): sleep spindles for memory consolidation; 50% of total sleep.
- Stage 3 (deep sleep): tissue repair, immune support, brain toxin removal via the glymphatic system.
- 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!
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How to Eat (And Still Lose Weight) – by Dr. Andrew Jenkinson
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You may be wondering: what diet is he recommending?
The answer is: some guiding principles aside…. He’s not recommending a diet, per se.
What this book does instead is outline why we eat too much ← link is to where we previously had this author as a spotlight featured expert on this topic! Check it out!
He goes into a lot more detail than we ever could have in our little article, though, and this book is one of those where the reader may feel as though we have had a few classes at medical school. The style, however, is very comprehensible and accessible; there’s no obfuscating jargon here.
Once we understand the signalling that goes on in terms of hunger/satiety, and the signalling that goes on in terms of fat storage/metabolism, we can simply choose to not give our bodies the wrong signals. Yes, it’s really that simple. It feels quite like a cheat code!
Bottom line: if you’d like a better understanding of what regulates our body’s “set point” in weight/adiposity, and what can change it (for better or for worse), then this is the book for you.
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Five Advance Warnings of Multiple Sclerosis
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Five Advance Warnings of Multiple Sclerosis
First things first, a quick check-in with regard to how much you know about multiple sclerosis (MS):
- Do you know what causes it?
- Do you know how it happens?
- Do you know how it can be fixed?
If your answer to the above questions is “no”, then take solace in the fact that modern science doesn’t know either.
What we do know is that it’s an autoimmune condition, and that it results in the degradation of myelin, the “insulator” of nerves, in the central nervous system.
- How exactly this is brought about remains unclear, though there are several leading hypotheses including autoimmune attack of myelin itself, or disruption to the production of myelin.
- Treatments look to reduce/mitigate inflammation, and/or treat other symptoms (which are many and various) on an as-needed basis.
If you’re wondering about the prognosis after diagnosis, the scientific consensus on that is also “we don’t know”:
Read: Personalized medicine in multiple sclerosis: hope or reality?
this paper, like every other one we considered putting in that spot, concludes with basically begging for research to be done to identify biomarkers in a useful fashion that could help classify many distinct forms of MS, rather than the current “you have MS, but who knows what that will mean for you personally because it’s so varied” approach.
The Five Advance Warning Signs
Something we do know! First, we’ll quote directly the researchers’ conclusion:
❝We identified 5 health conditions associated with subsequent MS diagnosis, which may be considered not only prodromal but also early-stage symptoms.
However, these health conditions overlap with prodrome of two other autoimmune diseases, hence they lack specificity to MS.❞
So, these things are a warning, five alarm bells, but not necessarily diagnostic criteria.
Without further ado, the five things are:
- depression
- sexual disorders
- constipation
- cystitis
- urinary tract infections
❝This association was sufficiently robust at the statistical level for us to state that these are early clinical warning signs, probably related to damage to the nervous system, in patients who will later be diagnosed with multiple sclerosis.
The overrepresentation of these symptoms persisted and even increased over the five years after diagnosis.❞
Read the paper for yourself:
Hot off the press! Published only yesterday!
Want to know more about MS?
Here’s a very comprehensive guide:
National clinical guideline for diagnosis and management of multiple sclerosis
Take care!
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The Philosophy Gym – by Dr. Stephen Law
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If you’d like to give those “little gray cells” an extra workout, this book is a great starting place.
Dr. Stephen Law is Director of Philosophy at the Department of Continuing Education, University of Oxford. As such, he’s no stranger to providing education that’s both attainable and yet challenging. Here, he lays out important philosophical questions, and challenges the reader to get to grips with them in a systematic fashion.
Each of the 25 questions/problems has a chapter devoted to it, and is ranked:
- Warm-up
- Moderate
- More Challenging
But, he doesn’t leave us to our own devices, nor does he do like a caricature of a philosopher and ask us endless rhetorical questions. Instead, he looks at various approaches taken by other philosophers over time, and invites the reader to try out those methods.
The real gain of this book is not the mere enjoyment of reading, but rather in taking those thinking skills and applying them in life… because most if not all of them do have real-world applications and/or implications too.
The book’s strongest point? That it doesn’t assume prior knowledge (and yet also doesn’t patronize the reader). Philosophy can be difficult to dip one’s toes into without a guide, because philosophers writing about philosophy can at first be like finding yourself at a party where you know nobody, but they all know each other.
In contrast, Law excels at giving quick, to-the-point ground-up summaries of key ideas and their progenitors.
In short: a wonderful way to get your brain doing things it might not have tried before!
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How Not to Die – by Dr. Michael Greger
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Dr. Greger (of “Dr. Greger’s Daily Dozen” fame) outlines for us in cold hard facts and stats what’s most likely to be our cause of death. While this is not a cheery premise for a book, he then sets out to work back from there—what could have prevented those specific things?
Some of the advice is what you might expect: eat green things and whole grains, skip the bacon. Other advice is less well-known: get a daily dose of curcumin/turmeric, take it with black pepper. Works wonders. If you want to add in daily exercises, just lifting the book could be a start; weighing in at 678 pages, it’s an information-dense tome that’s more likely to be sifted through than read cover-to-cover.
If you’re a more cynical sort, you might note that since the book doesn’t confer immortality, but does help us avoid statistically likely causes of death, logically it significantly increases our chances of dying in a statistically unlikely way. (Ha! Your mental exercise for today will be decoding that sentence )
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How Useful Are Our Dreams
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What’s In A Dream?
We were recently asked:
❝I have a question or a suggestion for coverage in your “Psychology Sunday”. Dreams: their relevance, meanings ( if any) interpretations? I just wondered what the modern psychological opinions are about dreams in general.❞
~ 10almonds subscriber
There are two main schools of thought, and one main effort to reconcile those two. The third one hasn’t quite caught on so far as to be considered a “school of thought” yet though.
The Top-Down Model (Psychoanalysts)
Psychoanalysts broadly follow the theories of Freud, or at least evolved from there. Freud was demonstrably wrong about very many things. Most of his theories have been debunked and ditched—hence the charitable “or at least evolved from there” phrasing when it comes to modern psychoanalytic schools of thought. Perhaps another day, we’ll go into all the ways Freud went wrong. However, for today, one thing he wasn’t bad at…
According to Freud, our dreams reveal our subconscious desires and fears, sometimes directly and sometimes dressed in metaphor.
Examples of literal representations might be:
- sex dreams (revealing our subconscious desires; perhaps consciously we had not thought about that person that way, or had not considered that sex act desirable)
- getting killed and dying (revealing our subconscious fear of death, not something most people give a lot of conscious thought to most of the time)
Examples of metaphorical representations might be:
- dreams of childhood (revealing our subconscious desires to feel safe and nurtured, or perhaps something else depending on the nature of the dream; maybe a return to innocence, or a clean slate)
- dreams of being pursued (revealing our subconscious fear of bad consequences of our actions/inactions, for example, responsibilities to which we have not attended, debts are a good example for many people; or social contact where the ball was left in our court and we dropped it, that kind of thing)
One can read all kinds of guides to dream symbology, and learn such arcane lore as “if you dream of your teeth crumbling, you have financial worries”, but the truth is that “this thing means that other thing” symbolic equations are not only highly personal, but also incredibly culture-bound.
For example:
- To one person, bees could be a symbol of feeling plagued by uncountable small threats; to another, they could be a symbol of abundance, or of teamwork
- One culture’s “crow as an omen of death” is another culture’s “crow as a symbol of wisdom”
- For that matter, in some cultures, white means purity; in others, it means death.
Even such classically Freudian things as dreaming of one’s mother and/or father (in whatever context) will be strongly informed by one’s own waking-world relationship (or lack thereof) with same. Even in Freud’s own psychoanalysis, the “mother” for the sake of such analysis was the person who nurtured, and the “father” was the person who drew the nurturer’s attention away, so they could be switched gender roles, or even different people entirely than one’s parents.
The only real way to know what, if anything, your dreams are trying to tell you, is to ask yourself. You can do that…
- by reflection and personal interrogation (see for example: The Easiest Way To Take Up Journaling)
- or by externalising parts of your subconscious (as in Internal Family Systems therapy)
- or by talking directly to your subconscious where it is, by means of lucid dreaming.
The idea with lucid dreaming is that since any dream character is a facet of your subconscious generated by your own mind, by talking to that character you can ask questions directly of your subconscious (the popular 2010 movie “Inception” was actually quite accurate in this regard, by the way).
To read more about how to do this kind of self-therapy through lucid dreaming, you might want to check out this book we reviewed previously; it is the go-to book of lucid dreaming enthusiasts, and will honestly give you everything you need in one go:
Lucid Dreaming: A Concise Guide to Awakening in Your Dreams and in Your Life – by Dr. Stephen LaBerge
The Bottom-Up Model (Neuroscientists)
This will take a lot less writing, because it’s practically a null hypothesis (i.e., the simplest default assumption before considering any additional evidence that might support or refute it; usually some variant of “nothing unusual going on here”).
The Bottom-Up model holds that our brains run regular maintenance cycles during REM sleep (a biological equivalent of defragging a computer), and the brain interprets these pieces of information flying by and, because of the mind’s tendency to look for patterns, fills in the rest (much like how modern generative AI can “expand” a source image to create more of the same and fill in the blanks), resulting in the often narratively wacky, but ultimately random, vivid hallucinations that we call dreams.
The Hybrid Model (per Cartwright, 2012)
This is really just one woman’s vision, but it’s an incredibly compelling one, that takes the Bottom-Up model and asks “what if we did all that bio-stuff, and then our subconscious mind influenced the interpretation of the random patterns, to create dreams that are subjectively meaningful, and thus do indeed represent our subconscious?
It’s best explained in her own words, though, so it’s time for another book recommendation (we’ve reviewed this one before, too):
Enjoy!
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