A phenomenon called naive realism may be the single most underappreciated source of conflict and distrust across individuals and groups

Looking for a romantic relationship? You know how important that first date can be. What makes us attracted to some people, and not others.

Some people are experts at flirting. Others of us never flirt or fail spectacularly. But what kind of flirting works best?

Researchers used machine learning techniques to analyze data on 2,038 married or cohabiting couples who participated in the GSEP Survey.

Few things in sports are better than a clash between two bitter rivals and what could be more satisfying than a win over a team you hate.

A new study finds that men tend to experience emotional pain more than women when their relationship takes a turn for the worse.

Have you ever met someone you instantly liked, or at other times, someone who you knew immediately that you did not want to be friends with.

After a painful break-up from a cheating ex, Beijing-based human resources manager Melissa was introduced to Xiaolce by a friend last year

A decade after scientists discovered that lab rats will rescue a fellow rat in distress, but not a rat they consider an outsider

Movies and television often show romance begin when two strangers meet. Real-life couples, however, are far more likely to begin as friends