Is impotence linked to dating within your group of friends?

For men in heterosexual relationships, time out with the guys can be important. Now, research suggests that it may be better for the guys' sex lives if their female partners don't tag along. A recent study conducted by researchers at the University of Chicago and Cornell University shows that when a woman forms… » 8/09/11 1:16pm 8/09/11 1:16pm