Recent report from Bloomberg.com:
Estrogen, the main sex hormone in women, plays a bigger role in male libido than previously thought, according to research that may guide development of sex-drive treatments.
The study found that reducing estrogen in men undergoing treatment for low testosterone resulted in a drop in libido and an increase in body fat, even as testosterone levels improved. The research is published in the New England Journal of Medicine.
The finding surprised researchers, who have believed the testosterone caused men to have stronger sex drives than women, said Joel Finkelstein, a study author and endocrinologist at Massachusetts General Hospital. While it’s known that the body converts some testosterone into estrogen and that the hormone declines in men with low testosterone, researchers didn’t fully understand estrogen’s role in male sexual desire.
“What will surprise many people is that loss of sexual desire in men with low testosterone is due to lack of estrogen,” Finkelstein said. “People think estrogen in men makes them very effeminate; they think of it as a female hormone, they think it is testosterone that gives men their sexual desire.”
While there have been clues that estrogen as well as testosterone influence male sex drive there have been few definitive studies until now, Finkelstein said.
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Note:
This seems to fit the concept of Chinese Medicine thought about fertility. The Kidney Jin can transform into Yin and Yang. Yin and Yang are integral parts and also affecting each other and derived from each other at certain conditions. Therefore, no matter Acupuncture or herbal medicine, the general purpose is to promote both, with some emphasis for men and women.
