Looking at Jewel today, it's hard to believe she ever struggled with her weight. How did she come to love her body? "One thing I've figured out over the years is, the happier I am, the better my body feels," she says. "What's funny is that everyone wants to be happy, but a lot of us don't realize what truly works." Find out what stay-healthy strategies work for Jewel—and how she sculpted those amazing abs. Her secrets can work for you, too.