Ritalin and Adderall are controlled substances but students will ask a doctor for help focusing and then use the drugs to do better in school without having true attention problems.

• 学生从医生那里要来利他林和多动障碍药这些违禁药物来帮助他们集中注意力复习，然后争取考出更好的成绩，其实他们没有任何病。