What is Estrogen Balance.What are the forms of estrogen and Endogenous Estrogens?
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One of the major female hormones…
Estrogen is a sex hormone present in all humans. In men the estrogen levels are much lower and are dwarfed by testosterone production. In women, estrogen levels fluctuate during the menstrual cycle and alternate with progesterone. In general, estrogen is responsible for everything associated with the first half of the menstrual cycle, including building up the lining of the uterus and preparing for ovulation. Estrogen levels are balanced in the body by progesterone, the hormone responsible for maintaining the uterine lining, and holding the body in a pregnancy-ready state. A drop in both of these hormones results in menstruation, the shedding of the lining of the uterus. Excess estrogen can be due to high estrogen levels, or due to low progesterone levels resulting in a relative excess of estrogen.
There are a number of different forms of estrogen that can have effects in our bodies. Some are created by the human body (endogenous or internal), and some come from the outside world (exogenous or external). Exogenous estrogens can be from chemical sources (xenoestrogens), or from plant sources (phytoestrogens).