The 1.8 billion youth between the ages of 10 and 24 in the world are being celebrated on Aug. 12, as part of the United Nations’ International Youth Day. On this celebratory occasion, the Children’s Health Policy Centre would like to remind everyone that most mental disorders start in childhood, then persist into adulthood. These include anxiety and behaviour disorders. Given this situation, effective prevention and treatment options need to be offered early in the lifespan — for all children in need. For more information, see Vol. 3, No. 1 of the Children’s Mental Health Research Quarterly.