The wait is almost over. This weekend, the 40th annual Northwestern University Dance Marathon begins. By the time it's done, thousands of dollars will have been raised, and lots of college students will barely be able to move their legs, which raises the question: Just how much of a workout is Dance Marathon? Last year, Executive Editor Kim Alters burned nearly 3,000 calories and walked 36.64 miles after 30 hours in the DM tent. See how those numbers compare to some other strenuous activities.
