People with Bipolar I disorder have full-blown manic attacks and deep, paralyzing depressions. A World Health Organization survey found the prevalence rate of bipolar I disorder to be 0.6 percent.

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 ...

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 ...

A sweeping new study of psychiatric and genetic records has the potential to change treatment for millions of psychiatric patients, finding that many conditions involve similar genes and may not need ...

Dementia increases sharply with the number of comorbid psychiatric disorders, with mood and anxiety disorders posing the greatest risk, new research showed. Compared to individuals with a single ...

Hyperarousal plays an important role in mental disorders. It influences the severity of insomnia, depression, anxiety, post-traumatic stress disorder (PTSD), and ADHD. Yet it is striking that ...