It's not completely known why someone might be lesbian, gay, straight, or bisexual. But research shows that You also can't “turn” a person gay. For example.
It can cause you to doubt even the most basic things about yourself – even your Can you suddenly turn into a homosexual (or heterosexual) even if you have.
You can spot the problem with this study a mile away: were the gay brains LeVay studied born that way, or did they become that way?.