There are various types of Estrogen patches that are suited for your individual needs and depending on the type of disorder that you complaint as well. 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. 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. Because of this, many women are recommended to take estrogen to reduce menopause symptoms. While many women are benefited by estrogen during or after menopause, some are found at greater risk for particular diseases if they take it. As researches give more information about estrogen, it may help pinpoint the reasons should those persons take it or not. Many scientific studies were launched regarding its beneficial result as well as its adverse effect in the human body. Despite its popularity in the market and in the scientific field for curing and preventing various kinds of illness and other afflictions, many issues still abound regarding its very nature. Everyone including men must also know the importance of estrogen and progesterone in the women body. Men should also know that they have these hormones in their body but are found in minimal or sometimes in negligible amount. The hormone that is dominant to men is called testosterone. However, if a man has many estrogen and progesterone in his body, he may have the identifying characteristics of women. 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.