Can you tell me how anabolic steroids work?

Same as testosterone: The body produces testosterone and similar steroids during puberty in men to increase muscle mass, hasten sexual maturation of both the anatomy (penile and testicular enlargement, sperm production) and sexual desire. Synthetic Anabolic steroids do essentially the same thing but can be far more potent. They also increase prostate cancer, depression, psychosis, heart trouble and other nasty stuff.

They are hormones: That are similar to hormones the body makes to help increase muscle strength and growth, mainly testosterone and its derivatives. Boys and girls produce about the same amount of these until puberty, when it markedly increases in boys, which is why they have different kinds of muscle development. Synthetic steroids do the same thing, just more so. They also have major toxicity and dangers to health.