While men and women present the same frequency and intensity of their jealousy in romantic relationships, there are clear sex differences in what triggers jealousy. The evidence from surveys and from physiological studies conducted in different cultures indicates that men become jealous of their mates...
Not as much. This is true off the playing field as well. Whether we're taking a test of giving a talk, it's easy to feel like we're ready -- at the top of our game -- and then perform at our worst when it matters most. It turns out that rarely do we practice under the ty...