Working with one means getting comfortable with self-reflection. And lists. Lots of lists. — Five years ago, I lost a job that I really loved — not an easy moment, but not an entirely unexpected one, either. I figured I was built for it. I mean, I’m old. I’m solid. I’d helped other people through rough times. I could change when I had to…

The Bulletproof founder and biohacker talks about his new book and his ‘hobby’ of chasing immortality — My grandmother lived forever, and by that I mean 102. She always said, “I plan to live until next February.” It was a modest plan, requiring a lot of bridge, no small amount of vodka, Planters Cheez Balls. (What we now call “micro choices.”) Every February, she said, “I hope…