When she's not chugging down some concoction called "noni juice," Miranda Kerr stays in shape by jumping for joy. Seriously. The former Victoria's Secret model, who separated from husband Orlando Bloom in October, claims the move really gets her through rough times. "If I'm having a challenging moment, I jump for joy. Literally. After a minute, I feel better, and after a few minutes, I'm really happy. Everything else just drops off.