Social determinants of health (SDH) is a topic where there is plenty of data about the problem—and much work to do in terms of scalable solutions that are integrated with our "whole person health" approaches. Over the past few years, many of my discussions about how social factors affect health care costs have become more strategic as the data showing those connections become clearer, and I say "more strategic" because earlier in my career, many executives "knew" there was a connection, but the health care system wasn't prepared to support acting on that knowledge. A good definition for . . .