Bryan Johnson says sleep, diet, and exercise give him all the dopamine he needs. His mood is more stable and motivation higher than ever. He doesn't see a dopamine problem to solve.
Let's say that it was your goal to optimize dopamine throughout the day. With what we're doing now with sleep and diet and exercise, maybe it solves my dopamine for me. I don't know. I mean, I don't currently have a dopamine problem. I think my mood has never been more stable in my entire life. I've never felt more motivated in my entire life.
