This document discusses common mental disorders such as anxiety disorders, mood disorders, schizophrenia, and hypochondria. It notes that anxiety disorders are among the most common in children and teens, with types including phobias, obsessive-compulsive disorder, panic disorder, post-traumatic stress disorder, and generalized anxiety disorder. Mood disorders like depression affect about 1 in 10 adults and 1 in 12 adolescents in the US, with bi-polar disorder involving extreme mood changes. Schizophrenia involves losing contact with reality, and hypochondria is an obsession with the idea of having an undiagnosed serious disease. The document recommends seeking help from medication, counseling, support groups, and talking to responsible adults