Sitting down for hours at a time, which many people do every day—at work, in the car, on the couch in front of the television—is bad for our health. Dan Kois, senior editor at Slate; co-host of Slate's parenting podcast, Mom & Dad Are Fighting; and New York magazine contributor, talks about standing up for a month straight. He wrote about the experience—and how it made his calves and kids unhappy—in "Sitting Is Bad for You. So I Stopped. For a Whole Month" in the June 9 issue of New York magazine.