Prof. Kaess is an expert in the field of risk-taking and self-harm behavior among adolescents as well as the development of borderline personality disorder. Other research interests are psychosis, internet addiction, and affective disorders. Prof. Kaess has a strong focus on early detection and intervention (including prevention) during adolescence, and is an expert on dialectical behavior therapy for adolescents (DBT-A). In his research, he aims to combine this expertise in neurobiological (i.e. neurobiology of emotion regulation and stress response) and intervention (randomized controlled trials; psychotherapy process research; prediction of treatment outcome) research to gain translational knowledge on mental disorders among youth. Aside his position as professor, he is also the University Hospital of Child and Adolescent Psychiatry and Psychotherapy at the University Bern.