Michelle Obama: I'm in the Best Shape – at 45

She varies her 4:30 am workouts with Pilates, cardio, stretching, and weights. ‘I enjoy arm exercises because you can see what it's hitting,’ she says. A self-described ‘closet jock,’ Obama says she's been in the best shape during her 40s. ‘I've had more time [to work out] as my kids have gotten older. There was a period, actually right before the campaign started up, that I was really in tip-top shape. I was really there. And then my husband ran for president,’ she jokes. The key, she says, is moderation....

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