The project’s mission is to provide reliable data on youth mental health in the European region and to design, implement and evaluate field-based interventions. With 19 partners from 14 countries, the project is committed to addressing the critical issue of youth mental health and, consequently, to reducing the burden of non-communicable diseases, especially mental health conditions in young people. Through this study, which combines research methods, it aims to develop a comprehensive exposure matrix, understand perceptions of youth mental health and provide comprehensive and irrefutable data on youth mental health.