This is the latest and most comprehensive book updated by Dr. John R. Lee on menopause and other female problems. Subtitled The Breakthrough Book on Natural Progesterone, this 372-page book, written for a non-medical audience, contains a wealth of information on PMS, menopause, premenopause, endometriosis, fibrocystic breasts, and other problems that can be helped by natural progesterone. Dr. Lee is considered the world's leading authority on estrogen-progesterone balance.