Attention deficit hyperactivity disorder (ADHD) is a neurobiological condition characterized by developmentally inappropriate and impairing patterns of inattention, hyperactivity, and impulsivity. ADHD in adults is accompanied in 60 to 100% of cases of another psychiatric diagnosis. Attention deficit hyperactivity disorder (ADHD) accounts for approximately 5 to 10% of mental disorders in childhood and adolescence. Symptoms, or some of them, persist into adulthood. Furthermore, research has demon-strated high comorbidity between ADHD and substance use disorder (SUD) and has indicated ADHD as a risk factor for the later development of SUD. However, less research has investigated the link between ADHD and behavioral addiction, such as and pathological gambling (PG). Exist-ing studies support the existence of a relationship between PG and ADHD, although some controversy persists.