Temperament dimensions and health behavior: a developmental model -- Social support, the self system, and adolescent health and health behaviors -- Improving diet and nutrition in children and adolescents -- The importance of physical activity in childhood and adolescence -- Unintentional injuries in childhood and adolescence -- Substance abuse -- Obesity: nongenetic influences in childhood and adolescence -- Reducing sexually transmitted diseases among African American youth -- Social and health policy: influences on child and adolescent health.