they're all injecting themselves with human growth hormone, and some are also taking testosterone, dhea, and estrogen. you feel younger? >> well, i'm 74 and i worked out two hours last night and i've recovered. and i can stay up till midnight. and i have the energy and vitality. >> big time libido. yeah, like when you're a kid again. >> you know, for women-- >> improves your sex drive? >> absolutely. >> oh, yeah. >> are all of you exercising more? >> oh, yes, yes. >> and all of you are eating better? >> yeah. >> it's a whole way of life. but the hormones and stuff is like cheating. it makes it so much easier to do and it gives you a-- the results are so much quicker. >> i mean, they're steroids, right? >> well... we're making ourselves better athletes. that's my answer. >> we have trained physicians around the country... >> cenegenics has a network of more than 100 affiliated doctors in the united states and joint ventures in tokyo, seoul, and hong kong. mintz says his roster of patients includes movie stars, las vegas entertainers, ceos, and the president of a foreign country, some of