The incidence of breast cancer has declined 7% in
the past few years. The big question is why?
The most likely explanation is declining use of estrogen
replacement therapy (ERT) by women. Researchers have shown that the
decline in breast cancer rates started as soon as it was publicly
admitted that ERT had been shown to increase the risk of breast cancer.
When this long held knowledge was made public, many women immediately
went off their hormone replacement therapies.
Even though this is strong evidence that ERT was
directly increasing breast cancer rates, other researchers are trying
to argue against the evidence. One claim was made that the decrease
in breast cancer rates may be due to better mammography techniques.
Actually, if better mammography techniques were being implemented,
then the incidence of breast cancer would be going up, not down. Standard
mammography systems can miss malignant tumors, especially if they
are small. Utilizing more advanced mammography techniques would allow
for the detection of smaller tumors that would otherwise be missed.
Because more tumors would be detected, the incidence of breast cancer
would actually go up.
The increased risk of breast cancer from ERT has
been well known for decades by the medical community. It has only
been in the past few years that this increased risk has been widely
reported in the media though. Other adverse effects of ERT, including
hypothyroidism, increased risk of heart attack and strokes from blood
clots, weight gain, depression, and other adverse effects still do
not get the media's attention.
Premarin is the most widely used drug for ERT. The
name Premarin comes from its source, which is pregnant mare's urine
(PREgnant MARe's urINe). Premarin is on average 3,000 times stronger
than the estrogens produced by the human body. It is well known that
human estrogens may cause or promote breast cancers in women, as well
as other disorders. So why would the medical establishment try to
convince women that something 3,000 times stronger than their own
estrogens is essentially safe over the last three decades?
And why would the medical establishment tell women
to take Premarin to reduce the risk of heart disease when estrogen
is well known to cause blood clots? Blood clots are a common cause
of heart attacks, and strokes.
The only real benefit of ERT that I see is the protective
effect on bones. Estrogens do not promote bone growth. Instead they
can help prevent bone loss after natural, or surgically induced, menopause.
Although, it requires much more than estrogen to prevent osteoporosis,
and there are safer alternatives. For example, the mineral boron has
been shown in clinical studies to prevent bone loss in the absence
of ERT at a daily dosage of 3mg.