yams,  even  yam  or  yam  has long been used in folk medicine by the Aztecs, Mayas, North American Indians and Chinese. In Chinese medicine, the yam root is mainly used for typical women's complaints, such as menstrual cramps, menopause and hormonal disorders and is therefore often referred to as the "woman's plant". Because the root contains the ingredient diosegenin, which has a structural similarity to the body's sex hormone progesterone.