In the first episode in this new podcast from the European Society for Child and Adolescent Psychiatry, "ESCAP on Air," the focus is on mental health at the population level, early interventions and collaboration in research with policy makers. We interview Tamsin Ford, a Professor of Child and Adolescent Psychiatry at the University of Cambridge, and Anna Sofie Kjærgaard Hansen, a specialist and PhD at Aalborg University Hospital. Ford discusses her research on school-based interventions and the importance of involving policymakers, while Hansen shares her insights on service use in psychiatry. We recorded this conversation during ESCAP 2023 in Copenhagen and to keep up to date with next year's congress news in Strasbourg 2025, read more about the upcoming congress right here and please subscribe to our newsletter right here. The conversation is split into two chapters to make it easy for you to take a break halfway and pick it up again, when it suits you. Keywords: child and adolescent psychiatry, mental health, research, interventions, school settings, policymakers, epidemiological research, risk factors, prevalence, education system, health services, organization, evidence-based interventions, ADHD, neurodevelopmental disorders, early assessment, diagnosis, policymakers, collaboration, mental health outcomes.