Could that desk job be the death of you?
Several studies indicate that sitting for extended periods increases your risk of obesity, heart attack and premature death.

Stand Up for Your Health
Could that desk job be the death of you?
Perhaps, say recent research findings. Several studies indicate that sitting for extended periods increases your risk of obesity, heart attack and premature death- whether or not you regularly exercise-notes Elin Ekblom-Bak of Sweden's Karolinska Institute in an editorial published in the British Journal of Sports Medicine.
"After four hours of sitting, the body starts to send harmful signals," she says.
One 12-year study of 17,000 Canadians, for example, found that, independent of workout habits, those who sat more had a higher death risk. For reference, a typical American spends more than half the day seated, according to a 2003-2004 survey.
Ekblom-Bak's advice: "Interrupt sitting as often as possible.