24 Jul For example, girls born with congenital adrenal hyperplasia (CAH), which results in naturally increased levels of male sex hormones, show relatively high rates of same-sex attractions as We fall in love with men or women because we have gay, straight, or bisexual orientations and not because of choice. 27 Apr With the H-Y antigens not functioning, it could be that the “be straight” signal in the fetus's brain never flicks on. Blanchard believes this phenomenon grows stronger with each boy a woman bears. Studies have found that a man without older brothers has about a 2 percent chance of being gay, but one with. 27 Jun For the straight guy, friendship with a gay man offers the opportunity to learn important lessons about masculinity, male identity, sexual orientation, and diversity. This legacy of violence, both physical and psychological, inflicted by straight men toward those of us who are gay naturally fuels our caution and.