This document provides information on intellectual disability (ID), including definitions, levels of severity, comorbid disorders, risk factors, causes, and treatment with psychotropic medications. Key points include: - ID is defined by deficits in both IQ (70 or below) and adaptive functioning. It ranges from mild to profound depending on IQ scores. - The most common causes are Down syndrome, Fragile X syndrome, and fetal alcohol syndrome, together accounting for 30% of cases. - Risk factors include heredity, early embryonic alterations, environmental influences, and pregnancy/birth complications. - Common comorbid disorders are ADHD, mood disorders, and autism spectrum disorders. Stimulants and