https://community.usms.org/swimming/f/general/2417/the-next-aid-in-producing-super-athletesIn the July 2004 Discover Magazine there's an article about gene therapy, specifically the use of IGF-I, an insulin like growth hormone that drives muscle and growth repair. It's original intent was to help the disabled, sick and injured get better. Apparentlyen-USTelligent Community 12