Anti-doping rules are designed to prevent athletes from gaining an unfair advantage through the use of performance-enhancing drugs (PEDs) or substances that are banned in competition. These rules are crucial to maintaining the integrity of sports, ensuring a level playing field, and protecting the health of athletes. Anti-doping organizations, such as the World Anti-Doping Agency (WADA), establish and enforce these rules globally to promote fairness, safety, and ethical standards in sports.