What is the most common mental illness in the United States?

The most common mental illness in the United States is anxiety disorders. According to the National Institute of Mental Health (NIMH), approximately 19.1% of U.S. adults had an anxiety disorder in the past year.

Anxiety disorders include generalized anxiety disorder (GAD), panic disorder, social anxiety disorder, and specific phobias. These disorders are characterized by excessive and persistent fear or worry that can interfere with daily activities.

Depression is also a common mental illness in the United States. According to the NIMH, approximately 7.8% of U.S. adults had at least one major depressive episode in the past year. Major depressive disorder is a mood disorder that can cause persistent feelings of sadness, hopelessness, and loss of interest in activities.

Other common mental illnesses in the United States include bipolar disorder, eating disorders, and post-traumatic stress disorder (PTSD).