This is often due to a prolonged intake of Estrogen. The risk will vary on the length of the treatment and the dosage of the Estrogen taken by a patient. 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. All of these undertakings agreed on one thing, estrogen is a primary component in the indication of the human body clock. It was found that it directly relates in the body cycle of a human being. Estrogen, as defined in the modern medical dictionary- does not only pertain to a single compound but is rather made up of groups of steroid compounds. 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. It is done merely by the even distribution of fats in the body of a female. Types There are certain substances that are used in the ERT: such as conjugated estrogens or conjugated equine estrogens under the brand name of Premarin; patch; estrogens made of singular estrogen compounds; drugs such as raloxifene and alendronate; herbal remedies such as Black Cohosh, known to help reduce menopausal symptoms; and other hormones involved such as progesterone or progestins,. Does this compound, which has been proven to have medical benefits cause adverse effect when taken beyond adequate amount? According to the recent findings of Women s Health Initiative in 2004, the daily-recommended intake of estrogen is highly dependent on the preparation used and to the brand name of the chosen estrogen alternative. Old age can be one of the reasons why women experience irregular estrogen production. Usually, when women reach old age, their body can no longer produce normal estrogen, which may lead to some bothering body malfunctions. Most of the women develop body irregularities due to inadequate production of estrogen.