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. 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. On the other hand, study shows that Estrogen patches reduce the risk of heart diseases but it is not strongly recommended for people to use it as an alternative for heart diseases because there is no sufficient proof supporting the study yet. These are mere presumptions and theories of some scientists. Consider the following statements made by the American Medical Association: Estrogen therapy is the only reliable and adequate therapy to maintain system dependents with the hormones in the ovary and to reduce hot flushes. Indicative vaginal waste and vaginitis and waste changes of the lower urinary tract with irregular and inconsistent urination are reversible with the estrogen therapy. Since Estrogen therapy has the long term and the short term period, it must be noted that lower dose of medicine should be taken for the long term in order to reduce the risk. It is also necessary that you see your doctor at least twice a year while you are taking the medication to avoid complications. In this way, it can cause hair follicles to reduce in number and it can be the start of hair loss. The hair loss will stop once the hormones of the woman return to its normal state. Since hair loss is sometimes temporary in most women, it can be cured with shampoos that are intended to revert hair loss. In addition, it also proves that women who maintain normal levels of estrogen in their body are less likely to suffer from brain malfunction. That is why regular intake of estrogen supplements in older women is essential. Women who are already on their menopausal stage should take natural estrogen supplements.