State of Research on Internalizing Disorders in Children and Adolescents: Is It Still in Its Infancy? Internalizing disorders are the most common mental disorders in children and adolescents. It is a fact that anxiety disorders and depression do not vanish over time. On the contrary, they are stable and represent significant risk factors for the development of further mental disorders in adulthood. Therefore, these disorders deserve more attention regarding early recognition, prevention and care, as these children often suffer in silence for too long before receiving adequate professional help. To improve their supply situation, various specialists who are in regular contact with children and adolescents should be included in the process. Furthermore, children and adolescents themselves should be educated about mental problems. If anxiety and depressive disorders are recognized, several well-evaluated treatment programs are available, which have demonstrated sustained effects. In addition, improvements in early recognition and enhancements in efficacy and effectiveness of treatment and prevention programs should be supported and warranted.