While you read this article, your body is busy at work: Chemicals are being secreted from glands, organs, and tissues, sending messages that direct your body to react in certain ways. These chemicals, ...

There are many different kinds of birth control—and even more factors contributing to decisions about the best birth control method for you or your partner. Some methods rely on the hormone progestin ...

Progesterone is the main pro-gestational steroid hormone secreted by the female reproductive system. It is linked to the menstrual cycle, pregnancy, and development of an embryo. Progestin is an ...