Becoming a multimillionaire opens exciting new avenues for hedonism. You can consort on yachts with models half your age, wash down Kobe beef with unpronounceable scotch, or collect rare wines — or wineries. Not Bryan Johnson: The 47-year-old former tech entrepreneur goes to bed at 8:30 every evening for a perfect night’s sleep. When he wakes, he has a four-hour routine that starts with downing 54 pills and a health drink he calls the “green giant.” His vegan meals look like something a rabbit would eat at a fat camp.

Johnson, the subject of the new Netflix documentary Don’t Die: The Man Who Wants to Live Forever, has taken the Silicon Valley enthusiasm for life- and health-hacking to its most well-known extreme. After exiting the electronic payments company Braintree, which he founded, Johnson has applied his personal wealth of several hundred million dollars to extending his lifespan — and perhaps even, he claims, defeating death. He takes both a holistic and organ-by-organ approach. He says he has the rectum of a much younger man.