By Bonnie Berkowitz and Patterson Clark.

We know sitting too much is bad, and most of us intuitively feel a little guilty after a long TV binge. But what exactly goes wrong in our bodies when we park ourselves for nearly eight hours per day, the average for a U.S. adult? Many things, say four experts, who detailed a chain of problems from head to toe. Download a pdf poster of this graphic.

Itching to move? Here are some ways to workout at work and eat the right stuff.