The document discusses doping in sports. It defines doping as the use of prohibited substances to enhance athletic performance. Common performance enhancing drugs used include anabolic steroids, human growth hormone, and creatine. Athletes dope to gain competitive advantages, cope with pressure, and pursue financial rewards. Anti-doping laws disqualify athletes for doping and impose multi-year bans for violations. The World Anti-Doping Agency and National Anti-Doping Agency regulate anti-doping and maintain the prohibited substances list.