The tendency to be both amateur and professional athletes is becoming more and more popular with young people. They are inspired by the strength and beauty of athletes’ bodies. Earning money, participating in the competition, as well as training others, are also good perspectives. Nowadays, athletes somehow can build an incredible body and break numerous records. To achieve such results some of them take steroids, which are prohibited in the professional sport. Moreover, their consuming harmfully affects the person’s health. Nevertheless, it doesn’t stop athletes from using steroids in their sports activity. Let’s make the observance of steroids, their biology, in what way steroids influence your health and the arguments of stopping taking them.