ZERO TO THREE is a national nonprofit organization that provides parents, professionals, and policymakers the knowledge and the know-how to nurture early development. Neuroscientists have documented that their earliest days, weeks, and months of life are a period of unparalleled growth when trillions of brain cell connections are made. Research and clinical experience also demonstrate that health and development are directly influenced by the quality of care and experiences a child has with his parents and other adults. That is why at ZERO TO THREE their mission is to ensure that all babies and toddlers have a strong start in life.