ent substance use needs to be identified and addressed as soon as POSSIBLE. Drugs can have long-lasting effects on the developing BRAIN and MAY interfere with family, positive peer relationships, and school performance. Most adults who develop a substance use disorder report having started drug use in adolescence or young adulthood, so it is important to identify and intervene in drug use early. Adolescents can BENEFIT from a drug abuse intervention even if they are not addicted to a drug.18 Substance use disorders range from problematic use to addiction and can be treated successfully at any stage, and at any age. For young people, any drug use (even if it SEEMS like only “experimentation”), is cause for concern, as it exposes them to dangers from the drug and associated risky behaviors and may lead to more drug use in the future. Parents and other adults should monitor young people and not underestimate the significance of what may appear as isolated instances of drug taking.