Certain foods, vitamins, and herbs may help naturally boost estrogen. Examples include soybeans, B vitamins, evening primrose oil, and dong quai. Estrogen and progesterone are two major sex ...

A human appetite hormone, bombesin, also controls feeding in starfish, showing it evolved over 500 million years ago. A team ...

Hormones are secreted by glands in the endocrine system. During puberty, hormones create changes in physical and emotional characteristics. In this video, Greg Foot describes the interaction of ...