Introduction to the special issue on child and family health: the role of behavioral medicine in understanding and optimizing child health.

Health promotion during early life and childhood can reduce the prevalence and impact of acute and chronic health conditions later in life. Research regarding factors that influence child and family health, prevention, and intervention programs that address them, and policies that promote implementation of best practices are needed to efficiently and effectively address the multi-faceted, biopsychosocial influences on child health, especially among youth from underserved backgrounds. The current special issue dedicated to child and family health offers a series of articles that illustrate how explanatory studies and targeted intervention programs for children, families, health care providers, and communities can be used to improve child health. Articles in this special issue are organized into three areas related to child and family health: (i) diet and nutrition, (ii) cancer prevention and control, and (iii) social determinants of health and health care. The articles included in this special issue underscore that behavioral medicine practitioners, researchers, and policy makers are well poised to lead innovative efforts to promote child health across clinical, community, health care, and population settings. © Society of Behavioral Medicine 2019. All rights reserved. For permissions, please e-mail: journals.permissions@oup.com.