If you maintain a safe level of estrogen in your body, it will help in the maintenance of proper blood flow; it also controls the cholesterol level and functions as an antioxidant of the body that filters harmful chemicals found in the body. With lower estrogen, the ovaries will produce minimum numbers of eggs as well. The Function of Natural Estrogen Level in the Body Every hormone that we have in our body performs an essential task in keeping it in shape. Without these hormones, we are likely to acquire different sickness and deficiencies as well. And one of these hormones is the estrogen which is a vital for every woman in this world. However, if menstruation is noted, that is the time where estrogen is found in a higher level. This is normal because of the release of corpus letuem found inside the eggs cells during this stage. However, there are also moments that the production of estrogen is beyond normal. It can be a cause of some irregularities in the normal body function of some women. A large number of women stopped taking estrogen pills after they have heard the initial report of the National Institute of Health that showed the serious danger of the estrogen pills. However, there are still some women, which are continuously using the pill. Why is it? Most women still use estrogen pills perhaps: Have not heard anything about the life-threatening danger it could give. For an unknown reason, estrogen helps women against cardiovascular diseases from her childhood up to middle age. Therefore, when there is an insufficient estrogen in a woman s body, she is susceptible to any cardiovascular diseases. In order to prevent this, hormone replacement therapy must be made. However, the therapy is only good for women who has estrogen deficiency and wants to prevent her self from having a cardiovascular disease. However, if a man has many estrogen and progesterone in his body, he may have the identifying characteristics of women. Men who have these hormones in huge amount appear to have bigger than normal male breasts, smaller body mass and some other sexual characteristics of women. Thus, it is important that estrogen and progesterone are of least amount in a male s body.