Women and Cheating

Studies have found that women are genetically inclined to cheat. They find men other than their partner more appealing when they are undergoing the high fertility phase of their menstrual cycle (day of or couple of days before ovulation). It was also suggested in the studies that men were able to sense when women were likely to cheat. The notable message conveyed was that although women's biology toys with their desires, traitorous conducts were comparatively uncommon.

SOURCE: http://abcnews.go.com/GMA/OnCall/story?id=1469078