Why teens like cocaine

An interesting new study in adolescent rats shows that teen brains imprint more strongly to drug-related stimulus that adult brains, indicating stronger chances for addiction in teen than in adults.

New drug research suggests that teens may get addicted and relapse more easily than adults because developing brains are more powerfully motivated by drug-related cues. This conclusion has been reached by researchers who found that adolescent rats given cocaine -- a powerfully addicting stimulant -- were more likely than adults to prefer the place where they got it. That learned association endured: Even after experimenters extinguished the drug-linked preference, a small reinstating dose of cocaine appeared to rekindle that preference but only in the adolescent rats.