Pilot Testing a Novel Approach to Pediatric Obesity Treatment

The goal of this clinical trial is to learn if an emotion regulation and self-monitoring intervention can help treat overweight and obesity in teens. The main question it aims to answer is: * Does emotion regulation and self-monitoring help reduce biases in teens with overweight and obesity? * Do changes in biases relate to changes in health functioning and health behavior? Researchers will compare the intervention to the provision of educational handouts about overweight and obesity to see if the intervention is more effective. Participants will: * Complete self-report questionnaires, an fMRI scan, and have their blood drawn * Received educational handouts or attend weekly telehealth group sessions weekly for four weeks and be asked to self-monitor their mood and behavior between sessions * Return to complete the same questionnaires, fMRI and blood draw procedures