The U.S. spends more per capita on health care than any other country in the world, yet a recent study found that we trail many other countries in terms of life expectancy. If life expectancy is a measure of population health, then what is our money buying? It’s nice to have access to expensive, high-tech medicine like MRIs, transplants, and chemotherapy, but maybe we need to focus on the healthy lifestyle practices that prevent the need for those interventions in the first place.