Before you go chalking someone's behavior up to their quirky personality, you may want to consider if something deeper is ...

Diagnosis in adults is almost unheard of. Yet, what is much more commonly diagnosed in adults are personality disorders, with a lifetime prevalence rate of approximately 13% (Volkert et al., ...

Frontiers in Psychiatry is delighted to present the ‘Reviews in’ series of article collections.Reviews in Personality Disorders will publish high-quality scholarly review papers on key topics in ...

Isolation can occur during depressive episodes when you might withdraw from others or even during manic episodes when ...

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Bipolar disorder is a mental health condition marked by large shifts in mood from mania to depression. Although bipolar disorder can be challenging to manage, many effective treatments are available.

It's completely normal to feel anxious or overwhelmed. But how do you know when it's the beginning of an anxiety disorder?

Narcissism is extreme self-involvement to the point where a person ignores the needs of those around them. While anyone may have narcissistic behavior once in a while, true narcissists often ...

Borderline personality disorder (BPD) is a mental health condition that affects the way you feel about yourself and other people. The symptoms of BPD are severe enough to interfere with daily function ...

Bipolar disorder is a mood disorder that includes at least one manic episode – characterized by elevated or agitated mood and often reduced need for sleep – accompanied by episodes of major ...

The term “pervasive developmental disorders (PDDs)” was used by the medical community to describe developmental delays in children, including problems with socializing and communicating ...