A sample of 4,013 participants from 24 countries were asked about aggression toward siblings and non-sibs, to determine ...

Decades of research with humans and other species indicate that males are more aggressive than females. But within the family, are sisters as aggressive as brothers?

Not everyone is a saint as they get older. Kids who were never told no growing up usually do these entitled things as adults.

Narcissistic behavior thrives in environments where visibility matters more than contribution. If you’re constantly talking ...

Joseph Vandello, a psychology professor at the University of South Florida, says that when influential figures ramp up a ...

New research provides evidence that women with high levels of psychopathy are more likely to engage in physical, verbal, and ...

People with strong social intelligence are deeply aware of how their behavior affects others, which is why certain habits ...

We have seen in actual medical decisions that physicians are prescribing less analgesics for the same reported pain score and ...

Tension: Toxic behavior rarely looks toxic at first. It often hides inside everyday language—phrases that sound harmless ...

During my time in the FBI’s Counterterrorism Division, I focused on international terrorism cases involving Palestinian ...

Here are four signs that burnout is silently changing your personality for the worse, and how you can spot them in your daily ...

Research has shown that people who display overconfidence are rated as more competent by others and achieve higher social ...