Find out about the history of steroids and other performance enhancing drugs, how they work, their effects, and why people use and abuse them.

Performance drugs -- History of steroids and performance-enhancing drugs -- Muscle builders: anabolic androgenic steroids, steroid precursors, and other hormones -- Oxygen boosters: epo and blood doping -- Speed it up; slow it down: stimulants and relaxants -- Something on the side: creatine and other supplements -- Diuretics and masking agents.