Every normal woman when born her ovaries contains around two hundred to four hundred follicles that will become the tiny eggs her ovaries will produce each month. Estrogen plays a mighty part in the process of ovulation. That is why as a women ages and her supply of eggs declines, she will stop having menses and experience menopause. Menopause hot flashes occur because the loss of estrogen affects the part of your brain that controls your body’s temperature. The time your body starts to produce less estrogen, the part of your brain that used to produce it will heat up which is causing your menopausal hot flashes.