CNN Anderson Cooper 360 August 6, 2013 02:16:00
I like to think i'm kind of blazing a trail for the baby boomer generation. >> reporter: a journey that dr. life, a family physician, began years ago. this was him before exercise and supplements. this is him today. >> how does this 74-year-old doctor keep looking younger and younger as he ages? the answer is the elite health program. >> reporter: it's a company that runs a chain of clinics calling itself the nation's largest age management group. part of the exploding anti-aging industry relying in part on testosterone and hgh. last year the company reported they made $100 million in revenue....