Low
DHEA, Not Testosterone
May Contribute To Low Libido In Women
Doctors
have long blamed low sex drive in women on dwindling testosterone
levels and many females are being encouraged to top up their
testosterone with pills, patches, creams and gels designed for,
and officially approved only for use in, men.
But Australian
researchers who examined 1,423 women, aged 18 to 75, found low
levels of DHEA, a hormone produced by the adrenal gland, is
significantly associated with desire and arousal problems in
women under 45. Low testosterone, on the other hand, "bears
no relationship to low libido" in women in this age group.
"The findings
from this study are absolutely fundamental to developing a sound
clinical approach to the assessment of women presenting with
low libido," says Dr. Susan Davis, director of research at the
Australian-based Jean Hailes Foundation, a woman's health organization.
DHEA supplements
are available over-the-counter in pharmacies, health food stores
and supermarkets across the U.S. No DHEA products have been
approved in Canada, but the hormone can be obtained by doctors
under Health Canada's special access program.
Some doctors
now routinely recommend women experiencing sexual problems have
their blood testosterone checked. The assumption has been that,
what works in men works in women. "Men have more testosterone
and men tend to have higher libidos than women," Davis said
in an interview.
Men with
low testosterone, on the other hand, lose their libido and "erectile
capacity," she says. "So a lot of what has been considered normal
or abnormal for women is really an extrapolation from men."
Her team randomly recruited women by phone by using the Australian
electoral roll. They found no differences in testosterone levels
between women who reported low sex-drive, and those who did
not. But women who complained of waning libido were up to four
times more likely than other women to have low DHEA levels.
Several groups, including consumer product giant Procter & Gamble,
are testing a transdermal testosterone patch designed specifically
for women. But Davis cautions that a woman shouldn't put on
a skin patch or other testosterone therapy based purely on a
low testosterone score.
But low
libido in a woman may have less to do with a medical problem
than with her relationship, stress levels and life experiences.