Caffeine
Stimulant discussed as increasing dopamine modestly and influencing receptor density; includes yerba mate as a related caffeine source.
Research
Expert discussions of Caffeine across 52 podcasts.
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Common Themes
Videos Mentioning Caffeine
How to Reclaim Your Brain in 2026 - Dr Andrew Huberman (4K)
Chris Williamson
A stimulant that chronic users build a tolerance to, so it doesn't significantly increase cortisol. Timing caffeine intake is important to avoid later cortisol spikes that disrupt sleep.
Why You’re Tired, Unmotivated, and Unfocused - Dr. Andrew Huberman (4K)
Chris Williamson
A commonly used drug (consumed by over 90% of adults) that blocks adenosine receptors, preventing sleepiness. Its effects wearing off lead to the 'caffeine crash' as accumulated adenosine binds to receptors.
Eating Hacks, Best Foods & High IQ Training Methods - Dr Mike Israetel
Chris Williamson
A stimulant that can marginally reduce appetite and improve mental clarity, but tolerance develops quickly, leading to rebound hunger.
Essentials: Tools for Hormone Optimization in Males | Dr. Kyle Gillett
Andrew Huberman
When applied topically to the scalp, caffeine can enter hair follicles and weakly crowd out androgens, potentially helping with hair loss.