April 26 (UPI) --A clinical and forensic psychologist who evaluated Amber Heard testified Tuesday that the actress showed signs of two personality disorders during the ninth day of trial in Johnny ...

Someone with two-faced, manipulative personality traits is jealous of everything you do and will do anything in their power to make you the bad guy. Spot them before they manipulate and use you.

Narcissism is a personality disorder that's hard to detect at first, but the damage two-faced narcissists inflict through emotional abuse is extensive. From love bombing to gaslighting, here are 7 ...

Both bipolar disorder and borderline personality disorder have similar symptoms, but there are key differences between the two. Here's all you need to know.

We all know a two-faced person or two, but you might not know exactly what to look out for from them. Here are six key signs that someone isn't being authentic.

Bipolar disorder is a mood disorder — not a personality disorder. Still, certain personality disorders like BPD have similar symptoms, so it can make diagnosis a little confusing.

Dependent personality disorder (DPD) is one of the most frequently diagnosed personality disorders. It causes feelings of helplessness, submissiveness, a need to be taken care of and for constant ...