Ban started buying Adderall from classmates. He lost 15 lbs using it and now he's afraid to stop using Adderall for fear of the weight coming back.
Dependence
Abuse
Rolando, who is on the cross country team, smokes pot daily, even though it's affecting his lungs and making it harder for him to improve his race times.
Kelly does ecstasy only when she goes to parties, but the drug affects her by causing her to have unprotected sex with men she doesn't know.
Kristin smokes pot occasionally, sometimes even on weekdays, which leaves her feeling sick and guilty.