Women do not ovulate at all after menopause, and even when they reach menopause, some may experience occasional ovulation despite menstrual disorders. Therefore, even after menopause, it is advisable to use good contraception if you have sex. The majority of women experience menopause between the ages of 45 and 55. After menopause, clinical symptoms may occur, such as insomnia, irritability, emotional instability, hot flashes, excessive sweating, etc. Some women may also experience osteoporosis and cardiovascular disease, all of which are caused by the decline of estrogen in the body. Therefore, when women enter menopause, it is recommended that they eat phytoestrogens or foods rich in animal estrogens, so that the symptoms of menopause can be reduced.