ADDICTION

Alan Lang, in his "Substance Abuse and Habitual Behavior" report to the National Academy of Science, identifies nine such characteristics: Impulsive behavior, Difficulty in delaying gratification, Sensation seeking, Antisocial personality, Nonconformist values, Sense of alienation, Deviant behavior, Heightened feelings of stress, Little regard for goals generally valued by society.

Alan Lang, "Substance Abuse and Habitual Behavior".