Low
Estrogen or Low Progesterone
As we discussed
earlier, FSH levels are commonly used
by doctors to diagnose menopause. FSH is elevated when
ovulation or egg production ceases. The hormone that is directly
dependent upon ovulation is progesterone. While estrogen can be
produced from a variety of sources within the body as well as
externally, progesterone is only produced after ovulation.
Estrogen
and progesterone are produced together throughout the reproductive
years and function best when they are produced in their normal
balance.
Estrogen is produced
prior to ovulation to replenish the inner lining of the uterus
that was lost during the menstrual cycle. Progesterone causes
the uterine lining and the breast to further develop to prepare
for a possible pregnancy.
Estrogen
and progesterone also effect other organs like the brain, the
endocrine system, the immune system, etc. When these hormones
are present in the normal levels they balance each other’s
activity and do not cause any symptoms.
During and
after menopause ovulation ceases and so does the production of
progesterone. Progesterone cannot be made from other hormones
and it is not available in the environment in any significant
amount.
During menopause
women may have normal or even elevated tissue levels of estrogen
while progesterone levels
are low or immeasurable. An imbalance of these two
hormones is more likely to be the cause of menopausal
symptoms than solely an estrogen deficiency.
Progesterone
Why
is progesterone so important? Progesterone does more than just
balance estrogen. Progesterone is vitally important in the normal
function of several organ systems in the body. The functions of
progesterone include using fat for energy, decreasing water retention,
eliminating depression and anxiety, improving mental function,
increasing sex drive, and increasing the effectiveness of other
hormones like thyroid hormone, testosterone and estrogen.