Most individual reports concerning testosterone in sports recount almost the same side effects . In the 1980s, East Germans attacked their coaches and federations for pushing them to take testosterone injections; they all exhibited similar side effects including sterility, hypertension and liver and kidney problems. They revealed that they had suffered headaches for years and most complained about the virilization of their body . Since then, other athletes around the world have revealed the same phenomena, adding aggression, muscle tears and chronic tendonitis. Some men even confessed that they have suffered from testosterone dependence, and claimed to have heart problems. Today many others suffer from prostate cancer.