If you're like me, somewhere in your closet, or maybe in a drawer, you probably have a pair of pants you hope to someday fit into. Again. But staying on a diet and finding time to exercise—it's no walk in the park. But wait! Before you swear off the spaghetti, scientists at the State University of New York in Stony Brook have stumbled onto a new way to slenderize. They found that mice that spend 15 minutes a day standing on a vibrating platform are leaner than mice who just stand still. Their results appear in the current online edition of the proceedings of the national Academy of Sciences. All the animals in the experiment were allowed to eat their fill. After 15 weeks, the shaken mice didn't actually weigh any less. But compared to the mice who hung out on a stationary platform, they had about 30 percent less fat around their middles. The SUNY scientists think that the jiggling kept fat cells from forming.