A study examining the challenges and problems that adolescents and young adults experience over the course of adolescence and young adulthood. The study consists mainly of interviews and filling out questionnaires on your mood, behavior, alcohol and other drug use, and relationships with family and friends.

We are recruiting teens ages 14-17 with a range of marijuana use—from none to a lot. To be eligible, teens must have a parent or guardian willing to participate (we do not share substance use information with parents), and must not have braces, permanent retainer, or implanted metal.