By boosting natural levels of this hormone, athletes experience increased muscle mass. A prominent example of this is the use of steroid drugs by professional athletes.Ĭommonly used for performance enhancement, anabolic steroids are synthetic versions of the male sex hormone, testosterone. The endocrine system can be exploited for illegal or unethical purposes. Promotes progesterone synthesis during pregnancy and inhibits immune response against fetus
Stimulate development of female secondary sex characteristics and prepare the body for childbirth
Stimulates development of male secondary sex characteristics and sperm production
