Dutch scientists in the survey established that up to 40% use of doping. Professional sport is a complex discipline, which uses not only constant training for wear, but also pharmaceutical agents, improving the results of the athletes.
Doping and mechanisms for identifying substances in the blood of athletes - the eternal race in professional sports. Specialists from Holland set: illegal drugs are a lot more people than diagnosed cases of anti-doping Commission.
According to the latest data, up to 40% professional athlete use drugs.