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.

Key points Finding the explanation to psychological disorders may seem to be an insurmountable task. Using case studies, new research on mental health and psychological disorders suggests that fear of ...

That “stressed” feeling may not be one thing. Researchers identify seven types of mental tension that shape anxiety, insomnia, and more.

Personality disorders can significantly affect your daily life, work, and relationships. Your treatment plan may involve psychotherapy and medication to manage your symptoms. Personality disorders are ...

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

Bipolar disorder is a long-term mood disorder characterized by major fluctuations in mood — both high and low — that can impact daily functioning and behavior. Although bipolar disorder is a chronic ...

Key points Finding the explanation to psychological disorders may seem to be an insurmountable task. New case studies suggest that fear of loss of control may underlie many psychological disorders.