Since its beginnings, Head Start has recognized that health is the foundation for children's growth and development, and that healthy children are better able to learn. Evidence suggests that when children receive preventive well-child care, early diagnosis, and effective treatment, they are more likely to engage in learning. The first requirement in the Head Start Program Performance Standards (HSPPS) for child health and development services is §1304.20(a) – Determining Child Health Status. It describes activities that must be completed within 90 days of a child's entry into the program. Note: This resource is under review.