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"I always try to sleep for at least eight hours a night and, of course, water, water, water! I drink 100 ounces of Smartwater every day," Jennifer Aniston says. "But occasionally I just have to have a Diet Coke—there's nothing like it!"
Calculate your sleep needs.
Jennifer Aniston told us how she really feels about Smartwater, Lady Gaga and aging gracefully (that's right--she's got grey hairs).
And other secrets this superfit star divulged to us