By using a new way to measure psychopathy, Keanan Joyner says we could potentially decrease the cost of the disorder to the U.S. criminal justice system, estimated at $460 billion each year.

Narcissists often attempt to remain blameless by using exile and isolation as tools of suppression, and by recruiting an echo chamber of enablers seeking to prove their loyalty.

Narcissism has become the armchair diagnosis of the decade. Social media is awash with people flinging the label around. Everyone’s ex seems to be a ...

But behind the hashtags and headlines lies a deeper and more urgent question: Can a narcissist change?That question has never felt more relevant than now, as the world watches high-profile figures ...