Study finds those who have less empathy are less likely to 'catch' a yawn
A human behavior that's often contagious may provide a simple clue to whether a person is a psychopath, researchers from Baylor University have discovered, per Smithsonian
. A study published in the Personality and Individual Differences
journal finds that individuals with psychopathic traits—including coldheartedness, self-centered impulsivity, and "fearless...