We all know health issues weigh us down. And when we think about health, we probably think about our individual health issues and wellbeing, or a disease we’ve had, or past surgery, or some other personal burden. But in fact, much of what ails us is connected with the world around us. Where we live, our environment, our communities, our relationships—even our social status deeply affects our health and wellbeing, in many cases including our life expectancy. Bad environments, poor relationships, marginalization, and poverty weigh down our health and shape our lives. Have you ever felt...