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, ...

Under normal circumstances, hormonal changes occur later in life, but in adolescents and young adults who have cancer, menopause and andropause can occur earlier as a result of treatment. As they age, ...

This article was reviewed by Lynn Marie Morski, MD, JD. Key Takeaways: Progesterone is a natural reproductive hormone that ...

Did you know your body is full of chemical messengers that help regulate your various organs and body systems? There are at least 50 such chemicals, called hormones, in the human body. Their levels ...

Boys and men who are biologically normal do not menstruate; and so there is no such thing as cessation of menses in men. Manopause? May be not. However, at some point after the age of 30 in men and in ...