One of the very best scientific predictors for how any child turns out--in terms of happiness, academic success, leadership skills, and meaningful relationships--is whether at least one adult in their life has consistently shown up for them. In an age of scheduling demands and digital distractions, this might sound like a tall order. But as bestselling authors Daniel Siegel and Tina Payne Bryson reassuringly explain, showing up doesn't take a lot of time, energy, or money. Instead, showing up means offering a quality of presence. And it's simple to provide once you understand the four building blocks of a child's healthy development.