Longevity-obsessed millionaire Bryan Johnson wonders whether his bid to live forever has gone too far

Bryan Johnson, the tech entrepreneur and longevity enthusiast, has expressed doubts about whether his pursuit to live forever may have gone too far. The Braintree founder, known for his numerous attempts to halt or reverse the aging process, recently announced that he might have overstretched himself in his quest for immortality. This sentiment follows Johnson's diagnosis with a second autoimmune disease, adding to his existing autoimmune gastritis and hypothyroidism.

Johnson, who appeared in Netflix's documentary "Don't Die: The Man Who Wants to Live Forever," had previously claimed that people could live up to 500 years. His rigorous health regimen involved daily injections of plasma from his teenage son, along with a daily intake of 54 supplements. Despite Johnson's wealth of $300 million from the sale of Braintree to PayPal in 2013, he has admitted to considering his longevity efforts a potential misstep.

Johnson's recent health challenges include autoimmune gastritis, which has led to his stomach "eating itself," and autoimmunity hypothyroidism, diagnosed at the age of 21. He attributes these conditions to his childhood diet of cereal, soda, and fast food, combined with the stress of fatherhood and business ownership. Johnson's health regimen, valued at approximately $2 million per year, includes a vegan diet, avoidance of sunlight, sexual activity, and regular exercise.

He is also a proponent of psilocybin mushrooms, which he believes hold promise in longevity efforts and have provided mental and physical benefits.