On the other hand, there is no exact duration for a long term relief because as long as the patient needs cure in order to lessen the risk, she will be recommended for a thorough treatment. Estrogen replacement therapy replaces the hormones that are no longer produced by the ovary. It also provides relief for the unpleasant risks and effects that are brought by the symptoms of menopause in a woman s body specifically the hot flashes and the night sweat. Advantages and Disadvantages of Estrogen Therapy In the past years, many women have stopped taking estrogen hormones because of the report that it can cause heart disease. Now, researchers have found out that this hormone is not as terrible as what others thought. Estrogen hormones are helpful in avoiding diseases such as heart attack and stroke. Estriol is the weakest among them all. The minimum amount of estrogen can be an effect of the following condition: Fetal demise Anencephaly Maternal ingestion of corticosteroids Placental sulfatase deficiency Progesterone has the following functions: It is the hormone responsible for the preparation of endometrium for nidation. The use of conjugated estrogens is usually known for significant drop in the occurrence of heart disease and osteoporosis, including a decrease of approximately 10% in the incidence of heart disease and stroke, over non-estrogen users. The levels of PA-1 are discovered to plunge down by around 50% when an intake of Conjugated estrogens is done with or without the presence of progestins. Many studies have proven that low production of estrogen in the body causes the permanent absence of menstruation. Estrogen is a female hormone produced by the ovaries. These particular hormones are responsible for the regulation of the different reproductive functions of the female body. It is one among the two female hormones that are responsible for the different shapes of the female body. 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.