Dangerous Medicine: What to Know About Performance-Enhancing Drugs

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  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs
  • performance-enhancing drugs

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They may also use diuretics (also known as water pills) to "cleanse" their system or illegal blood transfusions, which increase the blood's oxygen carrying capacity. The U.S. Anti-Doping Agency (USADA) is the national anti-doping organization for the Olympic movement, and spearheaded the investigation into Armstrong during his doping scandal.

(Photo: Freddie Vargas/Getty Images)

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