What raises your dopamine 2.5x without a crash:
- Cold showers and cold water exposure produce long lasting 2.5x increases in dopamine
- L-tyrosine is a dopamine precursor. Caffeine increases how many dopamine receptors you have so the dopamine already floating around works better
- Picture a wave pool. Consistent waves of decent size keep rolling up and down. One giant blast sloshes the water out and you have to take time off to reset
- You don't crash from cold or caffeine. That happens when people push dopamine up with drugs
@hubermanlab