Muscle growth needs the promotion of various hormones in the human body, such as testosterone. Therefore, only relying on hormones secreted by the human body, muscle growth and repair is relatively slow. Therefore, many enthusiastic bodybuilders think of using steroids produced by drugs to accelerate the process of muscle growth and repair. So as to achieve better results in the same time.
Steroids do have magical effects, but they also completely destroy the original intention of fitness. From the day when drugs were introduced into bodybuilding, bodybuilding was no longer a simple healthy exercise. At present, the international bodybuilding has developed to the point where it is impossible to achieve good results without drugs. It can be said that every world champion now is a product of steroids.