Years ago, they announced out of SF that autopsies had shown that gays had a smaller than normal hypothalimus.
The next morning the announce for Rush Limbaugh announced him as the man with the largest known hypothalimus.
Rush then came on and said that this was great news, now we can identify them before birth and abort them. That was last ever heard about that theory.
I heard that theory too. Another problem was that they couldn't establish whether the difference was the cause of the homosexual behavior, or the effect.
Good old Rush. I love it when he makes idiot comments.