In 1992, a now-classic article in the behavioral sciences was published in Psychological Science. David Buss and his colleagues provided evidence for the existence of substantial sex differences in ...

Cheaters will go to extreme lengths to keep up an image of innocence, but the little things always give them away. Here’s how to tell if your partner has something to hide. Few things are worse than ...

Forbes contributors publish independent expert analyses and insights. Mark Travers writes about the world of psychology. When social media flirts with danger, how do you stay grounded in love? Here ...

So a partner cheating sexually is a problem in a relationship, but it is, from an evolutionary perspective, a bigger problem for males, as sexual cheating could lead to cuckoldry. And evolutionary ...