In women, estradiol is a steroid hormone produced by the
ovaries and adrenal glands. Estradiol has a direct effect on
the function of the reproductive system, the nervous system,
the cardiovascular system and the skeletal system. Blood
sugar levels, skin and other tissues and functions are also
influenced by Estradiol. Like all steroid hormones, too much
amounts of estradiol can contribute to a number of increased
health risks. Being one of the most important "female
hormones" which is responsible for a normal monthly cycle,
estradiol is well known to support normal function in quite
a number of important physiological processes including bone
mineral density & osteoporosis, proper heart and blood
vessel health & arteriosclerosis prevention.
Estradiol is the most powerful estrogen of a group of
endogenous estrogen steroids, which includes estrone and
estriol. In women estradiol is responsible for growth of the
breast and reproductive epithelia, maturation of long bones
and growth of the secondary sexual characteristics.
Estradiol is produced primarily by the ovaries with
secondary production by the adrenal glands and conversion of
steroid precursors into estrogens in fat tissue.
Mood, sex drive, thyroid function, skin elasticity and
fertility are also affected by estradiol. Peri- and
post-menopausal women may monitor the decreasing levels of
this hormone that occur with age. Cycling women experiencing
PMS symtoms that may be due to a hormonal imbalance can
also monitor estradiol. In men estradiol does not play a
role as important as it does in women, though men also have
a small amount of estradiol in their bodies. The amount of
testosterone that men have usually does not allow estradiol
to have any considerable physiological effects on the body.
If the amount of estradiol compared to testosterone
increases, then men can see certain symptoms such as
wieght
gain especially in the midsection, development of enlarged
breasts (gynecomastia), decreased sex drive, and many of the
signs of low testosterone. Certain medications and drugs,
chronic alcoholism and other chronic health conditions may
result in increased astradiol levels in men.
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