In order to kick a habit they now find unpleasant, addicts often find they have to separate themselves from drug-taking cues by changing neighborhoods and avoiding old friends. Many antidrug advertising campaigns have backfired by misunderstanding this point. These campaigns often featured images depicting the horrors of addiction, maybe a bloody syringe and a dark alley; but these images were the very ones predicting the consumption of drugs, and therefore delivered a large dopamine hit in many reformed addicts, perversely renewing their craving and driving them back to heroin or cocaine.
