You drive to work on roads filled with distracted idiots. You walk in past the smokers and inhale their second-hand smoke. You eat a high-fat breakfast. You look at the ceiling tiles and realize they're still packed with asbestos. And after all that . . . you still haven't encountered the most life-threatening part of your day.

No, that happens when you SIT DOWN. According to a study out of the Pennington Biomedical Research Center in Louisiana, people who sit for most of the day are 54% more likely than other people to DIE of HEART ATTACKS. That means sitting increases your risk of a heart attack more than any other factor. It doesn't matter if you smoke, exercise, stress out, eat like crap, whatever . . . if you sit for most of the day, your heart attack risk skyrockets.