Today, Canadian communities are facing 21st-century epidemics. Inactivity and obesity contribute to rising rates of chronic “lifestyle” illnesses such as diabetes, cardiovascular disease and cancer. Unsafe roads and driving habits lead to thousands of deaths and serious injuries each year. Air pollution aggravates respiratory ailments and, through climate change, threatens us with tropical diseases and weather-related disasters. Social isolation and economic hardships make it hard for many people to access medical care, education, employment and healthy food.