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Disorder resulting in compulsive behaviors
Addiction is a neuropsychological disorder characterized by a persistent and intense urge to use a drug or engage in a behavior that produces an immediate psychological reward, despite substantial harm and other negative consequences. Repeated substance use produces long-lasting changes in brain networks involved in reward, executive function, stress reactivity and mood. These changes underlie both the intense drive to use a substance and the reduced capacity to control that urge.
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