Both disciplines seek to improve living conditions and health by preventing, identifying, investigating, and eliminating problems that may pose threats to residents' health and welfare.
Physical inactivity exacts an enormous public health toll.
Inactivity's negative effects have generated interest in collaboration between public health, city planning, and transportation organizations. Many communities, however, are designed to accommodate automobile traffic rather than safe and convenient pedestrian or bicycle travel. Walking is generally suitable for most people, regardless of age, sex, race, or income. Research also reveals that walking is beneficial. Bicycling is another way to increase physical activity.