Manage The Wave Pool, Not The Wave
Huberman uses a model he credits to endocrinologist Dr. Kyle Gillette: dopamine is like a wave pool. You have a reservoir. When you pursue something intensely, you generate waves. If those waves crash hard enough, dopamine spills out of the pool and you drop below your starting baseline. That trough is not a brief dip. Its depth is proportional to how high the preceding peak was, and it can last a long time. The mistake most people make is treating this trough as a problem to solve with more stimulation. They reach for the next hit, the next scroll, the next task spike, and all that does is drive them further into the trough and extend it. Huberman is direct about this: whether the source is cocaine, pornography, work stimulants, or stacking pre-workout, loud music, and caffeine every single session, the pattern is the same. The peak feels productive. The trough that follows is the cost. The practical implication is that most people, most of the time, would do better coming off the gas pedal slightly rather than pushing for maximum output. He puts it plainly: you want to be forward center of mass, not full tilt. Full tilt is a loan against future energy, and the interest rate is high. The goal is a consistent baseline you can sustain over years, not periodic peaks followed by crashes that leave you unable to do cognitive work in the afternoon.