Dopamine Nation by Anna Lembke – book highlights

dopamine-nation

I finished this book last month. For me, it was similar to the book Breath and The Power of Habit in that it changed my perspective on the world in some fundamental way, and as a result my behavior has changed for the better (at least, for now ;)

Amazon link: https://www.amazon.com/Dopamine-Nation-Finding-Balance-Indulgence-ebook/dp/B08KPKHVXQ

Here are too many interesting highlights from the book, all copied verbatim:

one of the most remarkable neuroscientific findings in the past century is that the brain processes pleasure and pain in the same place. Further, pleasure and pain work like opposite sides of a balance.

In short, I became a chain reader of formulaic erotic genre novels. As soon as I finished one e-book, I moved on to the next: reading instead of socializing, reading instead of cooking, reading instead of sleeping, reading instead of paying attention to my husband and my kids. Once, I’m ashamed to admit, I brought my Kindle to work and read between patients.

“After that I start a new ritual,” he said. “Every time I go into hotel room, I place sticky notes all around—on the bathroom mirror, the TV, the remote control—saying, ‘Don’t do it.’ I don’t even last one day.”

Prohibition led to a sharp decrease in the number of Americans consuming and becoming addicted to alcohol. Rates of public drunkenness and alcohol-related liver disease decreased by half during this period in the absence of new remedies to treat addiction.

Our dopamine economy, or what historian David Courtwright has called “limbic capitalism”

Today’s cannabis is five to ten times more potent than the cannabis of the 1960s and is available in cookies, cakes, brownies, gummy bears, blueberries, “pot tarts,” lozenges, oils, aromatics, tinctures, teas . . . the list is endless.

polypharmacy—that is, using multiple drugs simultaneously or in close proximity—has become the norm.

Even acts of kindness toward others are framed as a strategy for personal happiness. Altruism, no longer merely a good in itself, has become a vehicle for our own “well-being.”

“Yes, that’s true,” I said. “Boredom is not just boring. It can also be terrifying. It forces us to come face-to-face with bigger questions of meaning and purpose. But boredom is also an opportunity for discovery and invention. It creates the space necessary for a new thought to form, without which we’re endlessly reacting to stimuli around us, rather than allowing ourselves to be within our lived experience.”

By this accounting, one hit off a meth pipe is equal to ten orgasms.

pleasure and pain are processed in overlapping brain regions and work via an opponent-process mechanism.

I tend to imagine this self-regulating system as little gremlins hopping on the pain side of the balance to counteract the weight on the pleasure side. The gremlins represent the work of homeostasis:

the control group, the pathological gamblers showed a marked increase in dopamine levels when they lost money.

The more they lose, the stronger the urge to continue gambling, and the stronger the rush when they win—a phenomenon described as “loss chasing.”

I was also assuaging my grief at never having another baby, something I wanted and my husband did not, creating a tension in our marriage and in our sex life that hadn’t existed before.

“A week would be good, but in my experience, a month is usually the minimum amount of time it takes to reset the brain’s reward pathway.”

I remember standing in the kitchen in 2001 holding my newborn baby in my arms and experiencing an intrusive image of smashing her head against the refrigerator or the kitchen counter and watching it implode like a soft melon.

Cigarette smokers are more likely than matched controls to discount monetary rewards (that is, they value them less if they have to wait longer for them). The more they smoke, and the more nicotine they consume, the more they discount future rewards. These findings hold true for both hypothetical money and real money.

They found that when participants chose immediate rewards, emotion- and reward-processing parts of the brain lit up. When participants delayed their reward, the prefrontal cortex—the part of the brain involved in planning and abstract thinking—became active. The implication here is that we are all now vulnerable to prefrontal cortical atrophy as our reward pathway has become the dominant driver of our lives.

By contrast, the amount of leisure time in the United States today increased by 5.1 hours per week between 1965 and 2003, an additional 270 leisure hours per year. By 2040, the number of leisure hours in a typical day in the United States is projected to be 7.2 hours, with just 3.8 hours of daily work. The numbers for other high-income countries are similar.

“Leisure Luxuries and the Labor Supply of Young Men,” “Younger men, ages 21 to 30, exhibited a larger decline in work hours over the last fifteen years than older men or women. Since 2004, time-use data show that younger men distinctly shifted their leisure to video gaming and other recreational computer activities.”

In the spring of 2015, Muhammad committed to abstaining until he passed his qualifying exam, however long it took. For the next year, he abstained from cannabis and worked harder than ever before. His final report was over 100 pages long. “It was,” he told me, “one of the most positive and productive years of my life.”

Mitch was able to use categorical binding to mitigate the risk of relapse to sports betting. There’s something tragic and touching about having to ban yourself.

The well-worn American tradition of dieting—vegetarian, vegan, raw vegan, gluten-free, Atkins, Zone, ketogenic, Paleolithic, grapefruit—is one example of categorical self-binding.

A gluten-free diet, which previously had effectively limited consumption of high-calorie processed foods such as cakes, cookies, crackers, cereal, pastas, and pizzas, now no longer does.

The evolution of the gluten-free diet illustrates how attempts to control consumption are swiftly countered by modern market forces, just one more example of the challenges inherent in our dopamine economy.

Cigarettes became vape pens and ZYN pouches. Heroin became OxyContin. Cannabis became “medical marijuana.” No sooner have we committed to abstinence than our old drug reappears as a nicely packaged, affordable new product saying, Hey! This is okay. I’m good for you now.

She removed all alcohol save one beer, which she left in her refrigerator. She called it her “totemic beer,” which she regarded as the symbol of her choice not to drink, a representation of her will and autonomy. She told herself that she only needed to focus on not drinking that one beer rather than the more daunting task of not drinking any beer from the vast quantity available in the world.

Then he tried opioids for the first time, which was easy to do in Arkansas in 2009, when opioid manufacturers and distributors were pumping millions of opioid pain pills into the state. In that same year, doctors in Arkansas wrote 116 opioid prescriptions per 100 persons living in Arkansas.

Patients with pain who take opioids daily for more than a month are at increased risk not only for opioid addiction but also for worsened pain. As mentioned earlier, this is the process called opioid-induced hyperalgesia, that is, opioids making pain worse with repeated doses.

Worse yet, have psychotropic medications become a means of social control, especially of the poor, unemployed, and disenfranchised? Psychiatric drugs are prescribed more often and in larger amounts to poor people, especially poor children.

“I got into a routine where I immersed myself in ice water for five to ten minutes every morning and again just before bed. I did that every day for the next three years. It was key to my recovery.”

“For the first five to ten seconds, my body is screaming: Stop, you’re killing yourself. It’s that painful.” “I can imagine.” “But I tell myself it’s time limited, and it’s worth it. After the initial shock, my skin goes numb. Right after I get out, I feel high. It’s exactly like a drug . . . like how I remember ecstasy or recreational Vicodin. Incredible. I feel great for hours.”

Using blood samples, the researchers showed that plasma (blood) dopamine concentrations increased 250 percent, and plasma norepinephrine concentrations increased 530 percent as a result of cold-water immersion.

We’ve all experienced some version of pain giving way to pleasure. Perhaps like Socrates, you’ve noticed an improved mood after a period of being ill, or felt a runner’s high after exercise, or took inexplicable pleasure in a scary movie. Just as pain is the price we pay for pleasure, so too is pleasure our reward for pain.

Among Japanese citizens living outside the epicenter of the 1945 nuclear attack, those with low-dose radiation exposure may have shown marginally longer lifespans and decreased rates of cancer compared to un-irradiated individuals.

Exercise has a more profound and sustained positive effect on mood, anxiety, cognition, energy, and sleep than any pill I can prescribe.

He argued that the efficacy of acupuncture is mediated through pain, with needle insertion as the primary mechanism: “The needling, which can injure the tissue, is a noxious stimulation inducing pain . . . inhibiting great pain with little pain!”

adult hippocampal neurogenesis.” This refers to the discovery some decades ago that contrary to previous teaching, humans can generate new neurons in the brain into middle and late adulthood.

Use of the wheel was not limited to wild mice. There were also shrews, rats, snails, slugs, and frogs, most of whom demonstrated intentional and purposeful engagement with the wheel.

A study of skydivers compared to a control group (rowers) found that repeat skydivers were more likely to experience anhedonia, a lack of joy, in the rest of their lives.

By 2002, the top-paid 20 percent were twice as likely to work long hours as the lowest-paid 20 percent, and that trend continues. Economists speculate that this change is due to higher rewards for those at the top of the economic food chain.

“If stimulating the prefrontal cortex causes people to be more honest, is it also possible that being more honest stimulates the prefrontal cortex? Might the practice of telling the truth strengthen activity and excitability in the parts of the brain we use for future planning, emotion regulation, and delayed gratification?” I asked.

But if the therapist can help the patient take responsibility if not for the event itself, then for how they react to it in the here and now, that patient is empowered to move forward with their life. I have been deeply impressed with AA philosophy and teachings on this point. One of the preeminent AA mottos, often printed in bold type on its brochures, is, “I am responsible.”

Shame makes us feel bad about ourselves as people, whereas guilt makes us feel bad about our actions while preserving a positive sense of self. Shame is a maladaptive emotion. Guilt is an adaptive emotion. My problem with the shame-guilt dichotomy is that experientially, shame and guilt are identical.

Once I know a patient’s story—the forces that shaped them to create the person I see before me—animosity evaporates in the warmth of empathy. To truly understand someone is to care for them.

In particular, those behaviors that seem excessive, gratuitous, or even irrational in existing religious institutions, such as wearing certain hairstyles or certain clothing, abstaining from various foods or forms of modern technology, or refusing certain medical treatments, are rational when understood as a cost to the individual to reduce free riding within an organization.

AA and other 12 Step groups have been maligned as “cults” or organizations in which people trade their addiction to alcohol and/or drugs to an addiction to the group. These criticisms fail to appreciate that the strictness of the organization, its cultishness, may be the very source of its effectiveness.

But the lived experience of my patients suggests that prosocial shame can have positive, healthy effects by smoothing some of narcissism’s rougher edges, tying us more closely to our supportive social networks, and curbing our addictive tendencies.

I urge you to find a way to immerse yourself fully in the life that you’ve been given. To stop running from whatever you’re trying to escape, and instead to stop, and turn, and face whatever it is.

Beautiful tiny traditions: the Brazilian birthday custom to give the first cake slice to someone special

Saw this tweet and couldn’t stop thinking about it:

And in reply:

It’s such a small but beautiful thing. Adding a little generosity in a fun moment. The little brother was so happy.

What other beautiful tiny traditions are out there? I would love to collect these…

Huberman podcast: Notes from 2 eps on dopamine – “Universal currency of foraging and seeking”

The episodes – particularly the 2nd – helped me achieve some breakthroughs around motivation and understanding addiction, so I went back to take these notes

Added double asterisks (**) to points I particularly wanted to remember

Mistakes all mine

“Controlling dopamine for motivation, focus, and satisfaction”

Cold water submersion —> rise up to 250% increase in dopamine, sustained afterwards

There’s baseline level of dopamine
There are variations – called tonic (below baseline)) / phasic (above baseline)
**After peak (phasic), there is a trough (tonic), baseline level drops

Dopamine is primary determinant of how motivated, excited we are, pursue things

Parkinson’s – depletion / death of dopamine neurons which affects movement

Two dopamine circuits in brain
-mesocortico limbic pathway – one pathway really gets disrupted in drug addictions like coke, meth
-substantia nigra

Dopamine release can be very local or broad
Synaptic and Volumetric release

Pleasure / joy = dopamine peak relative to baseline, not just peak absolute

Neurons communicate in 2 modes:
1. Fast electronic synapses, sodium ions
2. Slow receptors (dopamine) – effects take awhile to occur

**Dopamine is really stimulating – sympathetic arousal – increases level of alertness, look outside and pursue things outside yourself

“Universal currency” in all mammals for moving us towards goals
It’s “how you track” pleasure and success

**When you do something you repeatedly enjoy, threshold for enjoyment goes up and up

Got giardia, went to hospital, was given thorazine which blocked his dopamine receptors – felt overwhelming sadness, most he’s ever felt, was a horrible experience

Everyone has baseline levels of dopamine

Epinephrine – wakes up neural circuits, gives us readiness, “energy” molecule
Dopamine and epinephrine (adrenaline) are closely related

What increases dopamine?
-chocolate – 1.5x – transient (few seconds to minutes)
-sex – pursuit and act – 2x
-nicotine (especially smoked) – 2.5x – but very short lived
-cocaine – 2.5x
-meth – 10x
-exercise – depends on perceived enjoyment – from 1-2x
-caffeine – only increases a little bit, but increases receptors uptake – more able to experience dopamine’s effects

**Dopamine is actually LOWERED if you hate doing X, but force yourself to do it afterward in anticipation of reward – it makes the “doing” worse

Alcohol + smoking
Caffeine + smoking
Can synergies and give bigger dopamine increases, but can cause troughs

“Universal currency of foraging and seeking”

The higher the peak, the lower the trough later (eg, 1-2 days)

Pleasure / pain balance
Pain comes from lack of dopamine – when the readily releasable pool gets depleted

Addiction = baseline gets lower over time, gets progressively less pleasure over time (eg, video game addiction, drug addiction)

Work hard / play hard can lead to burnout, because both the work and play are both spiking dopamine – it’s just one currency for motivation + pleasure

To replenish the dopamine POOL, stop engaging in those behaviors (!) – eg, 30d of no video games

If you layer on things to try to get max dopamine – eg, gym + fave music + coffee = makes it hard to get the same dopamine in future
**Remove multiple sources of dopamine release from activities that you like / want to enjoy
Eg, stimulants + studying, fave music + gym, phone + anything

Make sure high peaks don’t occur too often
eg, intermittent rewards

Phone can bring you out of context / focus – and is a source of constant little dopamine hits
eg, Huberman doesn’t allow phone into workouts

**Caffeine is bit of an exception since it increases density / effectiveness of dopamine receptors
Yerba mate is particularly good

Cocaine / amphetamine reduces ability to learn (in addition to lowering baseline dopamine) afterwards for a period of time

How do we increase / sustain baseline dopamine?
-**cold exposure (eg, Wim Hof) – dopamine can reach 2.5x baseline (comparable to cocaine) – not a rise and crash but a sustained rise for 2-3 hours after

**If children intrinsically enjoy drawing, but we add a reward to it, then a lot of kids will actually draw less once the reward is tied to it (vs intrinsic motivation)

David Goggins is great example – turning effort into the reward

**“Ability to access pleasure from effort” – most beautiful thing about dopamine

“Learn to spike dopamine from effort itself”

Cultivating growth mindset = learning to access rewards from effort and doing itself
Find dopamine from friction and challenge you’re currently in

“The effort part is the good part”

Intermittent fasting is a good example
When we eat, we get dopamine release – especially when we’re hungry
Perception of dopamine is heightened when you haven’t seen much of it – eg, not eating for a long time

Dopamine isn’t just attached to primitive behaviors, but also to prefrontal cortex and other higher activities

If we hear something that validates a belief we have, can increase dopamine (!)

Big dopamine release = harder for future big dopamine release

Porn – big dopamine release – can lead to challenges

Macuna pruriens – OTC, is a precursor to dopamine, can lead to large surge in dopamine, increases sperm concentration + quality

L-Tyrosine – potent stimulus for increasing dopamine

Dopamine conditions / disfunction can occur when taking certain dopamine medications – and can also be innate eg, anxiety, schizophrenia

**Huberman not fan of melatonin for enhancing sleep – also Matt Walker – only for jet lag
Decreases dopamine 60m after melatonin

Phenylethylamine (PEA) – chocolate enriched in it – increases synaptic levels of dopamine
Huberman takes supplements
Sharp transient increase that lasts 30-45m

**Oxytocin and social connection and pair bonding triggers dopamine release

“Leverage Dopamine to Overcome Procrastination & Optimize Effort”

Dopamine is neuromodulator

Brain circuits
-Substantia nigra – contains neurons that are full of dopamine
-Mesolimbic pathway
-Mesocortical pathway
-several other pathways but I didn’t take notes

Prefrontal cortex – behind forehead – much larger in humans
Involved in long term planning, understanding context, making decisions
“Area of brain that says ‘shhh’ or ‘no, not now’”

**Eyes are part of brain, got extruded during development (!)

Addiction = progressive narrowing of things that bring us pleasure

Dopamine peaks & troughs
**Analogy of the “wave pool” – Dr. Kyle Gillett
Large waves – many peaks – water can slosh out, baseline drops

Say you’re hungry and thinking about food
Dopamine starts rising in anticipation
Relates to our propensity / desire to move (dopamine helps motivate it)
Eat sandwich – if it’s good – dopamine has another peak

“Reward prediction error” – dopamine released is relative to what you expected to get
Higher the expectation, lower the reality = less dopamine

Craving:
1. Desire for something (eg, a delicious sandwich)
4. 4. 4. Desire to relieve pain of not having that thing

Most findings came in the last 5 years

As we strive for something, always looking for cues if we’re on the right path
Why some people are so motivated, but others are the opposite
Why is goal seeking so context dependent?
All these cues adjust your baseline dopamine constantly – “reward prediction error”

Dopamine is propeller driving us in direction we wish to pursue

The system basically learns from everything you do, to better understand and adjust and influence how and what you pursue in the future

2 alcoholic drinks a week is fine, after that starts to create problems
But 0 is better

**Duration between desire and effect matters – if very short gap, then system expects that in future (eg, cocaine instantly boosts dopamine)

**Higher the peak, and faster the rise to peak, the further the fall below baseline

Drop below baseline triggers desire for more, starts vicious loop especially for easy dopamine hits (eg, drugs)

**Subsequent hits = lower peaks, and deeper troughs below baseline

Cocaine = 10x (1000%)
Meth = 10-100x
Sex = 4-5x (but some individuals double)
Coffee = 2x

Reset of addiction = 30 days of abstinence = dopamine trough makes you feel bad (among other things)

“Binding behaviors” (reminds me of Anna Lembke) – self-limits / setting boundaries – space & time
Binding engages pre-frontal cortex

We need enough water in the wave pool – a healthy baseline of dopamine
-sufficient sleep – restores dopamine reserves
-non sleep deep rest – not meditation (which is a focusing exercise, not a “rest”) – but yoga nidra (relaxation, guided meditation)
-nutrition (tyrosine levels) – cheese, nuts, meats
-morning sunlight (!!)
-regular movement – circuits that generate movement interact with dopamine generating circuits

Some people have gene adaptations for higher dopamine, lower activation energy – that “go” drive

Increase in baseline = any dopamine increase > 1hr

Cold water = 3-5 hours sustained dopamine increase
Or warm water (eg, 60F) for up to 1 hour (!)

Compounds to increase dopamine
-Macuna purins – increases peak, kinda spike-y
-L-tyrosine – can increase baseline dopamine, cognitive improvements

Postpartum depression – concept can apply to peak dopamine experiences
Important to remember
-that baseline takes several days to replenish

Holy grail of motivation:
-Stanford study – observing kids with free time, kids chose to draw pictures, experimenters introduced rewards to those kids, this increases dopamine, but once rewards were removed, the kids spent less time drawing (!) – repeated in variety of contexts and cultures – bigger peak, then bigger trough, but eventually it can reset to normal
-if you enjoy an activity a lot, guard and protect it – don’t layer and add rewards to create a higher peak, because it can lead to bigger trough later

He fell into habit of creating excess peaks in the activities he enjoyed doing (eg, running, or science lab experiments) by stacking supplements, caffeine, etc – but increasingly it led to troughs / burnout

Better to hold onto intrinsic motivation / pleasure of doing an activity and not stacking other things to seek more peaks

MAKE EFFORT THE REWARD

Reward-prediction error – difference between our desire / expected outcome, and the actual received outcome – the higher the positive gap, the more motivation we have in the future, and vice-versa

“Growth mindset” is important – it’s not “you’re not good at X”, it’s “you’re not good at X YET”

Dopamine trough is experienced as craving, wanting, pain

**If deep trough – best way is sharp accelerated rate to get out – WAIT will take too long – to rebound faster, do something more painful / harder than waiting (eg, cold shower, go for a workout, clean the house)

“What would be worse than this state?” – something that really sucks and yet is safe
This steepens the trough, so then you bounce back faster

Does meditation increase dopamine?
If it’s effortful, it can increase dopamine

Not about achieving outcome, but rather forcing yourself into a deeper state of discomfort

Tuur Demeester’s great report on bitcoin: “In investing, what is comfortable is rarely profitable”

Tuur’s last 2 (or 3?) reports have also come during bear markets, and he’s called his shots almost to perfection.

Original report: https://unchained.com/how-to-position-bitcoin-boom

I did a 7-minute-ish podcast deep dive: https://twodegens.buzzsprout.com/2073784/12901355-5-minute-crypto-deep-dive-on-tuur-demeester-s-bitcoin-report-adamant-unchained

And here were some of my favorite excerpts (all copied verbatim):

During this accumulation phase, we expect for bitcoin to trade in a range of $22,000 to $42,000, until a new multi-year bull market pushes it well north of $120,000.

Today is no different—we see extraordinarily strong fundamentals, robust and sustained technological progress, and an unparalleled level of conviction among long-time bitcoin investors, all ready to fuel a global buying spree and sustained new adoption.

Investing in bitcoin, we believe, is like having the ability to buy shares of a general “Internet ETF” back in the early 1990s, or like being able to buy undeveloped land on Manhattan Island at the start of the Industrial Revolution—it’s the opportunity of a lifetime.

On a multi-year timeframe, bitcoin correlates with very few global macro phenomena. A consistent exception seems to be changes in the fiat money supply: stimulus campaigns are positively correlated with bitcoin bull markets.

For Europe, Latin America, Africa, Asia and Oceania, we believe the legal reality will vary greatly and we’ll see a growing polarization emerge: some countries will embrace bitcoin (see our section about nation state adoption), whereas others will actively try to discourage citizens from using or holding it.

And finally, a new favorite quote:

“In investing, what is comfortable is rarely profitable.” – Robert Arnott

Michael Saylor’s 10 pieces of advice for young people

Thought this list was useful and helpful regardless of age; it reminds me also of Kevin Kelly, who says advice should really be called reminders :)

1. Focus your energy
2. Guard your time
3. Train your mind
4. Train your body
5. Think for yourself
6. Curate your friends
7. Curate your environment
8. Keep your promises
9. Stay cheerful and constructive
10. Upgrade the world

In tweet form:

Screenshot 2023-05-20 at 7.21.01 PM

He also did an in-depth podcast on this (I’ve only listened to part of it):