Usually, this is also the point when the woman does not have the capacity to bear a child anymore. However, in some cases there are still some of them who gives birth to the so-called menopausal babies. While a woman is entering the menopausal period the level of Estrogen is affected. This is a kind of hormone that plays a very important role in the female reproductive system. Many studies have proven that low production of estrogen in the body causes the permanent absence of menstruation. Estrogen is a female hormone produced by the ovaries. 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. Women who lack such sex hormones often have different physique that is closer to males. Usually, if women do not have enough estrogen and progesterone, they appear to have smaller breast and masculine appearance. However, if a women have an over production of these hormones, it may lead to more serious state like stroke and osteoporosis, as what other studies says. The reason for such option is that hair loss is usually lasting in men. Men are possible to loss his hair completely from estrogen hair loss. For a man, this can be a very serious problem and it should be given adequate attention or concern immediately. Remember, there should be no man or woman who should suffer from hair loss because of estrogen. 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,. Estrogen as a Contributor in Signalling our Body Clock As medical technology advances throughout the years, there has been much fuss in the medical field about estrogen. Many studies and researches were conducted towards finding out the very nature of estrogen. All of these undertakings agreed on one thing, estrogen is a primary component in the indication of the human body clock.