Well-being Training for Adolescent Depressive Symptoms (TeenWell Study)

This study (TeenWell) tests whether an app-based mindfulness and well-being program can reduce depressive symptoms in high school students. Teenagers with elevated depression scores are randomly assigned to either the mindfulness app or a control (water-tracking) app to compare outcomes. **You may be eligible if...** - You are between 14 and 19 years old and currently in high school - You are proficient in English - You have elevated depressive symptoms (based on a standardized questionnaire) - If you take psychiatric medication, you have been on a stable dose for at least 4 weeks **You may NOT be eligible if...** - You have already graduated high school - You practice meditation weekly or more often - You have previously used the Healthy Minds Program app - You have active or significant mental health concerns that require higher-level care (study team will screen) Talk to your doctor to see if this trial is right for you.