A couple of Indiana University researchers are in on another crack sexuality study, this one exploring the reasons people cheat:
“This research shows that demographic variables may not influence decision-making as much as previously thought — that personality matters more, especially for men.”
So, those with cheating personalities will cheat. Gooooooollee. I think Hank Williams was on to that way back in the 1950s: Your cheatin' heart will tell on you.