" Most breakthroughs in performance (and appearance) enhancement start with animals and go through the following adoption curve: Racehorses → AIDS patients (because of muscle wasting) and bodybuilders → elite athletes → rich people → the rest of us The last jump from the rich to the general public can take 10–20 years, if it happens at all. It often doesn’t. I "

― Timothy Ferriss , The 4-Hour Body: An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman