"Biotech companies are already developing gene therapies to increase red blood cell production, which raises the amount of oxygen delivered to cells."
this is amazing? are people using this TODAY

"Scientists, doctors and sporting officials are at odds over when – if at all -- we'll actually see healthy athletes using gene therapy to enhance their performance. Some say the idea of genetically altered athletes is pure science fiction, while others, like Dr. Garry Nolan of Stanford University School of Medicine, say there is no doubt it will happen -- soon."
what type of legal and illegal drugs are cyclist taking???