A new study published in the British Journal of Psychiatry (Br J Psychiatry 2013 Jun 20) shows that positive thinking interventions have good acceptability and effectiveness in improving adolescent mental health. UK adolescents reported lower rates of depressive symptoms and less stress during the positive thinking intervention than during the conventional program. A total of 522 adolescent subjects aged 12-16 years were included in the study and were randomized to either the group receiving the school-based positive thinking program (intervention group) or the regular school program (control group). Adolescents’ receptiveness to the positive thinking intervention and the effectiveness of the positive thinking intervention in enhancing mental health were assessed. The results showed a high acceptance rate of the positive thinking intervention. After correcting for baseline characteristics, fewer adolescents in the positive thinking intervention group reported depressive symptoms after treatment and during follow-up (P values of 0.004 and 0.005, respectively) and had lower stress (P = 0.05) and better well-being (P = 0.05) during follow-up compared to the control group. At 3 months of follow-up, the skill level of the mindfulness intervention for adolescents correlated with better health and happiness and lower stress. Mindfulness refers to being aware in a particular way, i.e., consciously aware (On Purpose), living in the Present Moment, and nonjudgementally. The concept was introduced to the West in the 1970s and 1980s, and was brought to the attention of the psychological community. It was introduced and scientifically studied by Jon Kabat-Zinn and other scholars, and gradually improved and integrated into one of the most important concepts and techniques in contemporary psychotherapy. Many well-known contemporary psychotherapies, such as Positive Stress Reduction Therapy (MBSR), Dialectical Behavior Therapy (DBT), Acceptance Actualization Therapy (ACT), and Positive Cognitive Therapy (MBCT), are derived from positive thinking therapy.