Bryan Johnson takes 100 pills daily and eats 2,000 calories to slow aging, optimizing exercise, heart-rate variability, and caloric intake. He supplements testosterone because restriction lowers it naturally. Too much exercise follows a U-shaped harm curve that damages the body.
Chapters
But why isn't it more? Why aren't you training more? It's tricky puzzle we're trying to solve. I'm on a caloric restriction diet, 2000 calories, and I take 100 pills a day. And so the scientific question we're trying to solve is if in the year 2023, someone like myself wants to be an explorer like Shackleton or Magellan, and I want to say, all right, I want to go to the absolute limits of what's possible in the form of slowing my speed of aging. Then we're trying to optimize for caloric input, cardiovascular activity, heart rate variability. When you do too much exercise, there's a U shaped curve where you start inflicting harm on the system. And so you're trying to tune all of these things with caloric restriction. It has a side effect of lowering testosterone. So, you know, I need to supplement testosterone to get myself in the normal levels. And so we're just playing this really tricky trade off space all across the board and we're always making minor adjustments here and there, trying to maximize for this very narrow goal of slowing entropy in my body.