In the largest study of its kind, researchers identify similarities in the brain activity of people with major depressive disorder, post-traumatic stress disorder, bipolar disorder, and anxiety disorders.

Mental health disorders, although incredibly prevalent, remain poorly understood.

According to the National Institute of Mental Health, almost 1 in 5 adults in the United States live with a mental illness.

About half Trusted Source of the U.S. population will experience a mental health condition at some point in their life.

Full story at Medical News Today