It's My Two Brothers' Fault I'm Gay

An interesting article in UK's Independent looks at a study that offers one explanation why a genetic predisposition to being gay doesn't simply die out since gay men are naturally quite a bit less likely to have children.

It found that there may also be an advantage to that gene since female relatives of gay men (related by their mother) were far more likely to have larger families. Therefore, if you're carrying that gene, the boys might be more likely to be gay but the girls will have a bigger brood.

But here was the kicker at the bottom I wasn't familiar with:

"Scientists have also demonstrated repeatedly that the chance of a man being a homosexual rises by about a third for each older brother he has. They found that a man with three older brothers was about twice as likely to be gay as a man with none. This suggests that there may be biological factors operating within the womb of a woman who has already given birth to a number of sons that increase the predisposition towards her next son being gay."

So apparently, it's the fault of my two older brothers that I'm gay. Who knew?