Today’s children are growing up in a new reality, one where they are attuning more to machines and less to people than has ever been true in human history. That’s troubling for several reasons. For one, the social and emotional circuitry of a child’s brain learns from contact and conversation with everyone it encounters over the course of a day. These interactions mold brain circuitry; the fewer hours spent with people—and the more spent staring at a digitized screen—portends deficits.
