NYTimes.com: Well: Phys Ed: The Men Who Stare at Screens

Wow - the beneficial effect of regular exercise is totally negated by 11 hours or more of driving, or 23 hours or more of watching TV per week.TE "The men worked out, then sat in cars and in front of televisions for hours, and their risk of heart disease soared, despite the exercise. Their workouts did not counteract the ill effects of sitting." HEALTH | July 14, 2010 Well: Phys Ed: The Men Who Stare at Screens By GRETCHEN REYNOLDS How healthy are couch potatoes who work out?