Prosperity in the world today depends on societies' nurturing of young children. Quality care (stimulation, health, and nutrition) during ages 0 - 5 has a decisive and long-lasting impact on a person's development, ability to learn, and capacity to regulate emotions. Cognitive and noncognitive (social and emotional) skills, set early in life, determine later success. New research in neurobiology and the behavioral and social sciences is converging to enhance this understanding of early child development. Recently, researchers noted epigenetic effects in brain development the interaction of...