People who bike or walk to work are more fit, less fat than drivers

"Incorporating even relatively short bouts of exercise into a daily commute appears to deliver significant rewards, according to a new study from the University of North Carolina at Chapel Hill. Researchers looked at the health and fitness levels of active commuters - people who walk or ride a bike to work at least part of the way - compared to those who drive or take public transportation. Men and women who were active commuters performed better on a fitness test, according to the study published in the July 13, 2009, issue of Archives of Internal Medicine" - PhysOrg