India, Nov. 30 -- Bryan Johnson, the "man who is attempting to live forever," is, naturally, an exceedingly cautious driver. Driving, he says, is statistically the most dangerous thing he does. On his six-day trip to India, which begins tomorrow, Johnson's main concern is ensuring he is driven by the "very best of drivers".

The millionaire tech entrepreneur and bio hacker who is 47-years-old but claims to have reversed his epigenetic age by 5.1 years with his various experiments said his eventual aim is to have the epigenetic age of an 18-year-old. Johnson sold his payment-gateway company Braintree Venmo to PayPal for $800 million in 2013, and has been working, as a famous Indian influencer is known to say, "on himself."

In addition, he...