Overweight Adolescents

Many teenagers get too little and late timed sleep. High body weight and diabetes are increasing in teenagers as well. This study plans to learn more about whether improving sleep habits can help improve how the body regulates blood sugar and energy use in teenagers who have higher body weight. To answer this question, the investigators plan to enroll teenagers who get \<7 hours of sleep on school nights and measure changes in blood sugars and energy use after two weeks of typical sleep (sleeping on their normal school schedule) and two weeks of a sleep intervention that includes spending longer time in bed at night, melatonin, and morning light.

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

The purpose of this research is to determine the effectiveness of a coordinated program (Dyad Plus) that would help to facilitate self-monitoring, positive communication, joint problem solving, and social support to increase physical activity, healthy eating, and weight loss. Participants of the Brenner FIT (Families In Training) pediatric weight management program and their parent/guardian will co-enroll in weight loss programs. Parents/guardians will receive the components of By Design Essentials.

The goal of this clinical trial is to learn if a multicomponent nutrition program developed together with the students, parents, teachers and canteen operators will improve nutrition status of adolescents. It will also learn about the acceptability and feasibility of implementing the program in the school settings. The main questions it aims to answer are: What is the effect of co-created multicomponent intervention promoting healthy food behavior and environment in schools on the proportion of normal weight adolescents? What proportion of the target adolescents and teachers does the intervention reach? What proportion of the schools are willing to implement the intervention? What was the level of fidelity of implementation of all components of the intervention and the barriers and facilitators to implementation? What is the cost for maintenance, and facilitators and barriers of sustainment? School going adolescents studying in grades 7 to 9 from 26 schools in India and 26 schools in Nepal will be enrolled in the trial and their height, weight, dietary behavior, mental well-being and physical activity will be measured at baseline and at 12 months follow up. After the baseline assessment the school community (students, school environment, parents, teachers, canteen operators) will receive the intervention.