Estrogen can convert to all kinds of stuff with long names like 2-hydroxyestrone (the healthy kind of Estrogen that is an antidepressant, mood stabilizer, hydrates skin and vaginal vault, reverses insomnia and hot flashes, dilates coronary arteries, increases production of neurotransmitters, increases Acetylcholine to enhance memory, builds bone, increases collagen in skin, and 4-hydroxyestrone which is the carcinogenic kind. Some examples of how this can be done is with Methylmalonic Acid by injection and sublingual troches and Indole 3 Carbinol. I will teach you. Women need Estrogen to think, sleep, grow bone, and not have heart disease which is our number one killer. The right kind of Estrogen does not predispose you to breast cancer.