Being the older sister often means being the more responsible one. Just like in the story, we received below from one of our readers, who shared her problems with her younger sister and the family’s ...

Forcing an AI system to “play nice” does not automatically make people cooperate. In one set of simulations, it barely moved the needle. In another, it backfired. That’s the core tension in a new ...

I have seen congested traffic and aggressive drivers in many cities around the world. More than once I have noticed that if two cars arrive simultaneously at an intersection, one driver will honk his ...

The autopilot brain makes preconscious, automatic judgments and behavior choices, predicting the future based primarily on past perceptions and experience. Most behavior is directed by implicit ...

A research team developed a new experimental game to explore whether people avoid witnessing selfish behavior to evade punishing others or simply to avoid confronting unfairness. The study found that ...

Dear Annie: My husband and I have been married for nearly 39 years. He has always had a tendency to put himself first -- even before our sons, and now even our toddler grandson -- but I’m at my wits’ ...

Rory McIlroy is showing everyone who he is at the PGA Championship. That's what some longtime critics think, anyway. While ...

An intriguing new paper in PLoS ONE by Haselhuhn and colleagues suggests that men with wide faces make you selfish. No… really. The explanation is simple: {taking a deep breath now} since men with ...