It is my hypothesis that low maternal DHEA produces homosexuality
(
http://www.anthropogeny.com/Etiology%20of%20Male%20Homosexuality%20and%20Current%20Rise%20of%20Male%20Homo.htm ). An article was recently published that says: "These data, although
based on a small sample, suggest that prenatal exposure to antiandrogenic
phthalates may be associated with less male-typical play behaviour in boys."
(International Journal of Andrology 2009: "Prenatal phthalate exposure and
reduced masculine play in boys," Swan, et al.). The usual explanation is
that phthalates reduce testosterone.
As I just said, I think low maternal DHEA is the cause. It is known that
phthalates inhibit sulfotransferase, therefore reducing conversion of the
precursor, DHEAS, to the active molecule, DHEA (Environ Health Perspect.
2007 Dec;115 Suppl 1:51-4). Reducing conversion of DHEAS to DHEA produces
low DHEA. I suggest the foregoing supports my explanation of how
homosexuality forms.
James Michael Howard
Fayetteville, Arkansas, U.S.A.