Personality disorders—atypical ways of thinking about oneself and relating to other people—are grouped into three clusters: A, B, and C. Cluster B disorders are marked by inappropriate, volatile ...

Monoamine oxidase (MAO) is a mitochondrial enzyme that catalyzes the degradation of several biogenic amines. MAOA and MAOB are encoded by two adjacent X chromosome-linked genes and display different ...

Histrionic personality disorder is one of a group of conditions called "cluster B" or "dramatic" personality disorders. People with these disorders have intense, unstable emotions and distorted ...

Most people encounter a difficult person and call them “crazy” or “awful,” but there are actually clinical terms that therapists use to describe them. If a person demonstrates a pattern of difficult, ...

A new study published in PLOS Digital Health suggests that hate speech and misinformation on Reddit may reflect language patterns similar to those found in online communities centered around certain ...

Cluster C personality disorders are a group of mental health conditions that cause intense fearfulness, insecurity, or perfectionism. The symptoms are long-term and impact many aspects of life.

Histrionic personality disorder (HPD) is a mental health condition characterized by excessively dramatic and attention-seeking behaviors. People with HPD have an intense need for attention and often ...