Introduction to famous athletes taking steroids

Famous athletes take steroids to make them strong and about two years later they end up on TV confessing then usually going to jail. I picked this topic because I find it very interesting how if you take a type of drug it will make you strong. For example a base ball player tokes them then they could help him hit the ball farther. I am very interested what happens if a synchronized swimmer takes steroids how would it help them in what they do.