Menopause brings a lot of change, and it’s normal to feel uncertain about what’s happening in your body. Two of the most important hormone players in this transition are estrogen and progesterone.

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 ...

Once again I am extremely lucky to have this article co-written by a senior graduate student who's an expert on how reproductive hormones act on the brain. Stephanie Koebele is completing her Ph.D.

For example, right before females ovulate — when estrogen reaches its peak — they tend to be more physically active. The behavior has been noted in all kinds of animals, from humans to hamsters to ...