Steroid
Certain anabolic steroids, such as testosterone, are used as drugs to help make muscles stronger. Such steroids are used to improve a person's performance, but they are sometimes overused and abused by athletes that depend on steroids. The rate of steroid abuse grew greatly in the early 21st century, all over the world. Anabolic steroids can have very bad effects on the human body. They can cripple and kill. Some sports forbid them.