A person's own behavior is the primary driver of how they treat others during brief, zero-sum-game competitions, researchers report. Generous people tend to reward generous behavior and selfish ...

Biologists have used one of nature's most prolific cannibals to show how social structure affects the evolution of selfish behavior. Researchers showed they could drive the evolution of less selfish ...

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 ...

Selfishness can be subtly manifested in many ways. For example, your partner may be overly controlling, expecting you, at least sometimes, to carry out the other's wishes. Your partner may be overly ...

If someone is self-centered, they usually don't reciprocate the effort you put into the relationship. They may also disregard rules, believing that rules and guidelines don't apply to them. To cope ...

Many of us strive to be as selfless as possible in a perfect world, doing our best to always show up with a level of humility and grace. Sometimes, though, we can get so caught up in our own little ...

Are you a selfish partner? Before you answer, keep in mind there is a difference between being selfish and being labeled as “selfish” because our actions do not please or benefit someone else. If you ...

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 ...