6. Gene Doping Bodybuilding magazines already carry advertisements for DNA-tweaking drinks and pills. Experts say these are fraudulent, but reputable researchers are routinely contacted by coaches and athletes wondering if their animal treatments can be given to humans. Three years ago, German track coach Thomas Springstein was busted after unsuccessfully trying to score Repoxygen, an experimental gene therapy drug that boosts red blood cell production, for his runners. At the Olympics in Beijing, an unidentified Chinese doctor offered stem cell injections to a German journalist posing as a swim coach. http://www.wired.com/wiredscience/2010/02/gene-doping-detection/