CNN Anderson Cooper 360 August 6, 2013 08:18:00
Vudu and this is potentially dangerous because it's so untested. >> we do not know what the long-term consequences are going to be with testosterone and hgh replacement therapy. >> reporter: what's wrong with just getting old? >> an argument a lot of doctors use. who wants to get old if you don't have to? >> reporter: if next year for some reason you get cancer, will you blame the supplements? >> no. i will not. >> reporter: he will continue to be the poster grandpa of a company and a movement that believes the riskier move is to turn away from this fountain of youth in dumbbells, diet and dru...