A pioneering program to promote lifelong cardiovascular health in children starting in kindergarten is being expanded by Mount Sinai Heart to schools across the five boroughs of New York City following a successful pilot in spring 2021. The program, the Children’s Health and Socioeconomic Implications Project (CHSEI), works closely with children and teachers to instill heart-healthy behaviors. These include sound eating habits, regular physical activity, understanding the link between body and heart, and managing emotions.