[Biochemistry plays an important role and addictive behavior].
D000328:Adult; D001921:Brain / Q000187:drug effects*; D002648:Child; D004644:Emotions / Q000187:drug effects / Q000502:physiology; D006801:Humans; D013287:Illicit Drugs / Q000633:toxicity*; D018377:Neurotransmitter Agents / Q000378:metabolism; D049268:Positron-Emission Tomography; D011957:Receptors, Opioid / Q000187:drug effects* / Q000502:physiology; D012307:Risk Factors; D019966:Substance-Related Disorders / Q000451:nursing* / Q000503:physiopathology
D013287:Illicit Drugs; D018377:Neurotransmitter Agents; D011957:Receptors, Opioid