Another reason to be wary of the treadmill

With the weather warming up, this is the time of year when women start exercising in hopes of looking reasonably svelte in a bathing suit. Alas, a University of Michigan study suggests they won’t spend as much time exercising as women who work out for reasons unrelated to weight loss. Women who exercise for a “body shape motive” spend 40 percent less time at it than women who exercise for other reasons—for instance, because they actually enjoy exercising.