There were an estimated 1.17 billion people suffering from mental disorders worldwide in 2023, up by 95.5 percent from 1990, according to a May 23 peer-reviewed study published in The Lancet journal.
The study assessed the prevalence of 12 types of mental disorders across 204 nations and territories between 1990 and 2023. Types of disorders assessed in the study included bipolar disorder, schizophrenia, attention-deficit hyperactivity disorder, major depressive disorder, and anxiety disorders. All mental disorders saw case numbers rise during the study period.
