Serious mental illness

Serious mental illness (SMI) is characterized as any mental disorder that impairs seriously or severely from one to several significant life activities, including day-to-day functioning. Five common examples of SMI include bipolar disorders, borderline personality disorder, psychotic disorders (i.e. schizophrenia), post-traumatic stress disorders, and major depressive disorders. People having SMI experience symptoms that prevent them from having experiences that contribute to a good quality of life, due to social, physical, and psychological limitations of their illnesses. In 2021, there was a 5.5% prevalence rate of U.S. adults diagnosed with SMI, with the highest percentage being in the 18 to 25 year-old group (11.4%). Also in the study, 65.4% of the 5.5% diagnosed adults with SMI received mental health care services.

SMI is a subset of AMI, an abbreviation for any mental illness.