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The Fit 5: Tips to Feel (and Look) Like a Star!

From Heidi Klum and Cameron Diaz's "fusion" workout to J.Lo's makeup artist's favorite eye serum, get the scoop on how to look fab like the stars

SLOW DOWN FOR A FAST

About every two years, Gabrielle Union undergoes a fasting period to "start fresh." After consulting with her doctor, the Cadillac Records actress recently committed to a four-day fast during which she signed up for a juice delivery service and treated herself to a spa wrap on her last day. "It's certainly not for weight loss," says Union. "For me, it's a spiritual thing. It's getting my brain and my spirit together." Read more about detox diets on Health.com. – Michelle Tan