Another Way You Can Tell Is...

COPENHAGEN, Denmark - New research indicates parts of the brain that govern fear and anxiety are switched off when a woman is having an orgasm but remain active if she is faking.

In the first study to map brain function during orgasm, scientists from the Netherlands also found that as a woman climaxes, an area of the brain governing emotional control is largely deactivated.

"The fact that there is no deactivation in faked orgasms means a basic part of a real orgasm is letting go. Women can imitate orgasm quite well, as we know, but there is nothing really happening in the brain," said neuroscientist Gert Holstege, presenting his findings Monday to the annual meeting of the European Society of Human Reproduction and Embryology.

So, boys, if you're ever wondering... pay a little more attention - or check out her brain scan!