This article examines what makes a city healthy and looks at five Japanese cities - Tokyo, Yokohama, Osaka, Nagoya and Sapporo - that have achieved success in providing their citizens with a healthy lifestyle. These cities have access to quality healthcare, clean air and water, safe living conditions, good nutrition and physical activity opportunities, economic stability, social cohesion and access to educational resources. All of these factors contribute to creating an environment where citizens can live healthy lives.