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. Several arguments rise regarding the use of conjugated estrogen, but it was also studied that it can even help in reducing the risk of heart diseases. Due to the great effect that has been brought by estrogen replacement therapy in curing other types of illnesses, this paves the way for the American women to support the use of estrogen replacement therapy to cure the disorder in their estrogen hormones. It is dubbed as estrogen because of its big importance in the oestrus cycle. The main function of it is, as female sex hormone. This hormone is found in both men and women but women of reproductive age have high levels of it. Estrogen hormone helps in developing the breast of the women, thickening of the endometrial, affects the discharge of hormones from pituitary gland and changing the menstrual cycle. Most of the scientists believe that over production of estrogen can affect the normal function of the heart, which can cause some serious heart ailments. Normally, menstruation lasts from three to six days and follows a twenty-eight day cycle. However, if a women s menstruation lasts up to almost ten days and follows shorter menstrual cycle, it can be a sign of high estrogen level. This is not advisable to apply on the breast area due to some possible complications. If there are times that you fail to apply the patch in the affected area make sure that you will still apply it as soon as you remember. But do not dare to apply the patch more than the prescribed because it can cause some side effects. Among the most common supplement for the Estrogen that achieves hormonal balance is the Premarin. This comes from the urine of a pregnant mare that contains various types of Estrogen. But only half of the Estrogens content in Premarin is found in human beings. If Premarin is not suited in a person s system, it will result to the following side effects: A person experiences bloating and swelling in some areas of the body that may seem very unusual.