We now know that the way to help a child develop optimally is to help create connections in her brain—her whole brain—that develop skills that lead to better relationships, better mental health, and more meaningful lives. You could call it brain sculpting, or brain nourishing, or brain building. Whatever phrase you prefer, the point is crucial, and thrilling: as a result of the words we use and the actions we take, children’s brains will actually change, and be built, as they undergo new experiences.