Pregnant woman smoking*Yes, a study is behind this news.

According to neuroscientist Dr. Dick Swaab, pre-birth exposure to nicotine can increase the chances of girls becoming lesbian or bisexual. The researcher also surmised that a boy with several older brothers has a higher chance of being gay.

Interesting yes?

Now add stress to that, as it apparently plays a part in sexual orientation, according to Dr. Swaab.

Article continues at EURThisNThat.