It is too risky using performance-enhancing drugs. However, there still some people who want to improve their athletic performance, Without knowing that mixing drugs and sports can disrupt their game in many ways. There are some athletes take anabolic steroid to increase their muscle mass and strength. This drug when abuse can have adverse effects in men such as prominent breasts, baldness, shrunken testicles, infertility and impotence. For women, they can suffer from having a deeper voice, an enlarged clitoris, increased body hair, baldness and infrequent or delayed periods.