Mood disorders include depressive disorders and bipolar disorders. These types of psychiatric disorders affect a person’s emotions and may cause severe lows, called depression, and highs, called mania ...

Comorbidity is when a person has more than one health condition at once. Researchers investigating the comorbidity of personality disorders have found people with certain disorders may have other ...

Credit: Getty Images Some rare psychological disorders may occur so infrequently that most mental health professionals might never encounter them. Approximately 1 of every 5 adults in the United ...

Narcissistic personality disorder (NPD) is 1 of 10 clinically recognized personality disorders. Though NPD is only one official diagnosis, doctors further classify the condition into 2 types.

Nearly 1.2 billion people worldwide are living with a mental disorder, nearly double the number recorded in 1990. According to a new study, this stark rise has placed mental disorders as the leading ...

Bolton is a senior scientist in the Department of Mental Health at Johns Hopkins University Bloomberg School of Public Health. Years ago, I was the only physician serving a small country town and its ...

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 ...