If the next person you meet says or does any of these things, they just might be a psychopath. If, as Jim Rohn says, we are the average of the five people we spend the most time with, you definitely ...

Psychopathy isn't an official diagnosis; however, it's used to describe traits such as a lack of empathy, aggressiveness, and ...

The authors do not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and have disclosed no relevant affiliations beyond their ...