Using the American Psychiatric Association's official diagnostic criteria, this video walks through each of the nine traits ...

The exact cause of personality disorders is unclear. However, genetics, neurological differences, and environmental factors may contribute to the development of these complex mental health conditions.

Genetics is just one of several factors thought to influence personality disorder development. Life experiences, family dynamics, coping mechanisms, and social learning may all be contributing factors ...

Diagnosing personality disorders in children is controversial due to natural developmental shifts in mood and behavior. When maladaptive traits remain pervasive and persistent, however, a personality ...

Where mood disorders can cause temporary or fluctuating changes in mood, personality disorders cause symptoms that remain consistent over time and across a range of situations. For example, bipolar ...

As "narcissist" becomes the catch-all insult of the social media age, here is the crucial difference between everyday ...

How can you tell whether people who lie to you believe what they are saying? Understanding the effects of emotional ...

Symptoms of ASPD can start in childhood and may include manipulative and reckless behaviors. ASPD often co-occurs with other mental health conditions, which makes it harder to treat. Up to 31% of ...