Doping refers to the practice of enhancing one's physical or cognitive performance through the use of performance-enhancing substances or techniques. This can include the use of illegal drugs, such as anabolic steroids, as well as legal substances like caffeine or creatine. Doping is a major concern in sports, as it not only gives athletes an unfair advantage but also poses serious health risks. Research in doping focuses on identifying new methods of detection, understanding the motivations behind doping behavior, and developing strategies to prevent and discourage doping in sports.