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Performance-enhancing drugs
Performance-enhancing drugs are substances used to improve any form of activity performance in humans. Physical performance-enhancing drugs are used by athletes and bodybuilders. Use of cognitive performance enhancers by students is sometimes referred to as academic doping. They are also used by military personnel to enhance combat performance.〔(Anon. Better Fighting Through Chemistry? The Role of FDA Regulation in Crafting the Warrior of the Future. ) Food and Drug Law: Final Paper. March 8, 2004.〕
== Definition ==
The classifications of substances as performance-enhancing drugs are not entirely clear-cut and objective. As in other types of categorization, certain prototype performance enhancers are universally classified as such (like anabolic steroids), whereas other substances (like vitamins and protein supplements) are virtually never classified as performance enhancers despite their effects on performance. As is usual with categorization, there are borderline cases; caffeine, for example, is considered a performance enhancer by some but not others.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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