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Fortune
Fortune
Alexa Mikhail

Tech CEO Bryan Johnson is spending millions to be 18 again, but a longevity expert says his ‘heroic discipline’ is unsustainable

(Credit: Photo by Dustin Giallanza/Courtesy of Blueprint)

With all the hype about reverse aging comes the question: What kind of lifestyle does it takes to beat the odds and live a very long life?

Forty-five-year-old Bryan Johnson’s $2-million-a-year attempt to reverse aging has left longevity experts both fascinated and highly skeptical—largely due to the fact that genetics and pure luck, which factor heavily into how long you live, are far out of our control.

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