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Substance Abuse

Substance Abuse

The DSM-V defines Substance-Related Disorders as "10 separate classes of drugs," including alcohol, caffeine, and illicit substances that, when used in excess, "produce such an intense activation of the [brain] reward system that normal activities may be neglected."

Substance-Related Disorders can be classified as Substance-Use Disorders or Substance-Induced Disorders.  Substance-Use Disorders include dependence and abuse; Substance-Induced Disorders include intoxication, withdrawal, delirium, persisting dementia, persisting amnesia, psychosis, mood and anxiety disorders, sexual dysfunction and sleep disorders.

Additional information about substance-related disorders

Substance-Related and Addictive Disorders. American Psychiatric Association.