Progesterone:A female sex hormone produced by the ovaries, placenta, and adrenal glands that works in conjunction with estrogen to regulate the menstrual cycle and prepare the uterus for implantation during pregnancy.
Testosterone:A male sex hormone produced primarily by the testes that is also present in smaller amounts in women. It plays a role in the development of male sexual characteristics and in the regulation of various physiological processes.
Gonadotropin-Releasing Hormone (GnRH): A hormone produced by the hypothalamus that stimulates the release of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) from the pituitary gland, which in turn regulate the production of estrogen and other sex hormones.