Building a strong foundation for healthy development in the early years of life is a
prerequisite for individual well-being, economic productivity, and harmonious societies
around the world. Growing scientific evidence also demonstrates that social and physical
environments that threaten human development (because of scarcity, stress, or instability)
can lead to short-term physiologic and psychological adjustments that are necessary for
immediate survival and adaptation, but which may come at a significant cost to long-term …