"We're going to talk about extreme life extension," he says. "I'm talking about very specifically allowing us to go into our second century of life with the vitality and the bounciness that you have when you're a young person."
Thanks to advances in technology and research on how diet affects the aging process, Dr. Oz says it might be possible for some people to live to see their 120th birthdays.
There's one man in Oprah's audience whom Dr. Oz says may become the first man in history to live to be 150 years old. Joe Cordell is one of thousands around the world who believe they've found the key to extreme longevity—calorie restriction.