Glossary
Menopause: The time of life when a woman's menstrual periods stop permanently. Also called "change of life.Menstrual cycle: The monthly cycle of hormonal changes from the beginning of one menstrual period to the beginning of the next.
Post-menopausal: After the menstrual periods permanently stop.
Estrogen: Female sex hormone produced primarily by ovaries and in smaller amounts by conversion of male hormone made in the adrenal gland. In breast cancer, estrogen may promote the growth of cancer cells.
Progesterone: Female sex hormone released by the ovaries during every menstrual cycle to prepare the uterus for pregnancy and the breasts for milk production.