Bumper to bumper traffic entering Pennsylvania from New Jersey packs the Benjamin Franklin Bridge in Philadelphia, Thursday, Nov. 5, 2009. The Philadelphia transit system's largest union went on strike early Tuesday, bringing the city's bus, subway and trolley operations to a halt. (AP Photo/Matt Rourke)
(credit: AP Photo/Matt Rourke)
BOSTON (CBS) – WBZ’s Dr. Murray Feingold talks about how the car has limited our exercise and even increased our eating.