Diets and Health: How Food Decisions Are Shaped by Biology, Economics, Geography, and Social Interactions. Ichiro Kawachi, September 16, 2015, Paper. “Health is shaped by both personal choices and features of the food environment. Food-choice decisions depend on complex interactions between biology and behavior, and are further modulated by the built environment and community structure. That lower-income families have lower-quality diets is well established. Yet, diet quality also varies across small geographic neighborhoods and can be influenced by transportation, retail, and ease of access to healthy…” Link