Estrogen
Estrogen is the primary female sex hormone and plays an important role throughout a woman's life. In teens, estrogen contributes to healthy bone growth and development and influences reproductive processes such as menses and fertility. Estrogen also plays a role in the development of other body systems, including the heart. While estrogen occurs naturally in females, some things can disrupt the balance and availability of estrogen, sometimes leading to decreased bone density and amenorrhea, or the cessation of monthly periods.
(http://www.livestrong.com/article/245567-what-effects-does-estrogen-have-on-an-adolescent-girl/) |