In the American psychological thriller film, Joker, the Joker is seen as more of a sociopath. Someone who's environment turned him into who he is. What about psychopaths? People who are born with antisocial personality traits? How do we know whether someone is born a psychopath or raised up to be one? In this video, we bring five interesting scientific research that may indicate whether someone is a psychopath. As a disclaimer, this video is not meant to be a diagnosis, but whether just interesting correlations. Furthermore, the official diagnosis for sociopath or psychopathy is actually anti-social personality disorder in the DSM.