In the case of those who take Estraderm, Vivelle, Climera the finding suggests that .02 to .05 mg/ day be taken when transdermal preparation is used, while the Menostar estrogen brand has the lowest dosage with the required daily intake of only .014 mg/ day. Since the matter of decision-making is relatively dependent on individual basis, rather than taking into consideration age groups and related cases. There are many studies that tell that estrogen can prevent the existence of Alzheimer s disease. This is because estrogen increases the blood supply to the brain causing it to function well. With minimum amount of blood in the brain, women will have problems with recalling memory that sometimes leads to Alzheimer s disease. Usually, it leads to the miscarriage of the baby and may cause serious complications to the mother. Estrogen medications are indeed helpful for women with menopausal disorders, but these are also risky, especially if not taken properly. One of the worst effects that it can bring to a person is the so-called endometrial cancer. It provides some identifying features of a woman such as bigger chest, smaller hips, and a firmer skin. It helps in the reproduction as well. Estrogen is produced primarily by the ovaries where the egg cells are produced. It is very important for women to have a consistent amount of natural estrogen produced in their body. Two common lasting side effect of estrogen deficiency are osteoporosis and cardio vascular disease. Osteoporosis This is one of the most feared diseases of adult women. This is the condition wherein the bones become fragile, thin and easily fractured. Many studies have shown that one cause of this unbearable disease is estrogen insufficiency. The Importance of Estrogen and Progesterone Women appear differently to men because of its primary sex characteristics brought by two female hormones called estrogen and progesterone. Women are pre dominated by these hormones that they appear to have smaller hips, bigger chest, slimmer body and firmer skin compared to men.