Andrew Huberman (solo episode): Professor of neurobiology and ophthalmology at Stanford School of Medicine and host of the Huberman Lab podcast. This is a solo Huberman Lab Essentials episode revisiting his science of motivation.
What this episode covers
In this Huberman Lab Essentials episode, Andrew Huberman explains how dopamine drives motivation, craving, and movement rather than pleasure itself. He details the reward pathway (VTA and nucleus accumbens) with the prefrontal cortex acting as a brake, and shows how every burst of dopamine-driven pleasure is mirrored by a wave of pain or craving. He covers why drugs, video games, and social media hijack this system, and contrasts dopamine with the 'here and now' molecules like serotonin and endocannabinoids. He closes with practical tools: extending the arc of positive experiences, blunting rewards, and using intermittent reinforcement to stay motivated without crashing.
Recommended on this episode
The Molecule of More
Daniel Z. Lieberman & Michael E. Long
“we're going to talk about all all of those in the book The Molecule of More, wonderful book. Uh those were described as the here and now molecules”— Andrew Huberman
Also referenced (named, not recommended)
Wherever You Go, There You Are
Jon Kabat-Zinn
“in the book uh Wherever You Go, There You Are, Jon Kabat-Zinn talks about this um meditation practice that's different than most meditation practices”— Andrew Huberman
Mucuna pruriens
various supplement brands
“I've talked about Mucuna pruriens, which is 99.9% L-DOPA, the precursor to dopamine.”— Andrew Huberman
Wellbutrin (Bupropion)
GlaxoSmithKline
“There are antidepressants like Wellbutrin. Bupropion is the other name for it, which increase dopamine and epinephrine.”— Andrew Huberman
L-tyrosine
various supplement brands
“There is a compound that's kind of interesting in the supplement space that isn't um Mucuna pruriens L-dopa, it's not L-tyrosine”— Andrew Huberman
Phenylethylamine (PEA)
various supplement brands
“it's phenylethylamine, or PEA. PEA or beta phenylethylamine releases dopamine at low levels, but also serotonin at low levels.”— Andrew Huberman
Big reveals from this episode
- Reveals dopamine fires ~3-4 times per second at rest but jumps to 30-40 times when you anticipate something.
- Cocaine and amphetamine increase dopamine release a thousandfold within about 10 seconds.
- Says 15 to 20% of people have a genetic bias toward addiction.
- Argues much of our pursuit of pleasure is simply to reduce the pain of craving.
- Describes the experiment where rats with destroyed dopamine neurons still enjoyed food but wouldn't move one body length to get it.
- Cites a study where students given caffeine but told it was Adderall performed better on working memory tests.
- Tells a wealthy friend to give most of his money away to blunt the dopamine reward.
- Explains intermittent reinforcement (the slot-machine schedule) is the most powerful dopamine reward schedule.
Worth remembering
- Dopamine was discovered in the late 1950s, originally seen as just the precursor to adrenaline/epinephrine.
- Motivation is a two-part process about balancing pleasure and pain.
- Eating food raises dopamine ~50% above baseline, sex ~100%, nicotine ~150% above baseline.
- Just thinking about a craved substance can raise dopamine nearly as much as consuming it.
- Fast-updating, novel video games can release dopamine at levels between nicotine and cocaine.
- Every burst of dopamine pleasure is followed by a mirror-image dip felt as craving or pain.
- With repeated use, the pleasure response shrinks while the pain/craving response grows.
- Jon Kabat-Zinn's one-almond mindfulness practice shifts a pursuit behavior into here-and-now contentment.
- Dopamine's only real goal is more of whatever releases dopamine, so enough is never enough.
- Reward yourself unpredictably, not on a fixed schedule, to avoid burning out dopamine circuits.