Post-industrial society is centered on sedentary lifestyles. This has caused obesity rates to rise and related health problems to amplify. Obesity is only one result of sedentary life, but it is a sufficient indicator of physical activity. However, regions of the US with more effective transit systems are less susceptible to obesity because their residents walk more by going to transit. The health benefits of walking to transit are quantified. While walking to transit, riders burn calories, which controls body weight, and the physical activity makes them more healthy. This healthiness is reflected in an improved quality of life. When people are physically active, they have less absenteeism at work, are more productive, and their employers pay less for health insurance.