Some experts now say psychopathy doesn't exist—here's why we may be looking at it all wrong (opens in new tab)

As an expert on personality disorders, people often ask me about psychopathy. It seems everybody has had an ex, a boss, a neighbor or a relative who they suspect has traits of it. People are curious about how to recognize psychopathy, and whether it can explain certain harmful behavior. It's easy to see why. Psychopathic people are everywhere—from books and movies to newspaper articles and academic papers.