
Celebrity trainer
Harley Pasternak who's trained
Alicia Keys,
Eva Mendes, and
Halle Berry has a little tip for us when it comes to strength training. He recommends a one sided workout like this: "Work with only one arm or one leg at a time when strength training with dumbbells. This way, while you're resting one side of your body you'll keep the other side going strong."

Often times, it seems celebs are pregnant one day and the next day they're not. It's as if there is no evidence of the pregnancy, except the new baby. For everyone else, it takes time to get back to your pre-pregnancy bod — they say to give yourself at least nine months; after all, it is as long as it took for you to put on the weight.
Jessica Simpson shows off her hot bod on the upcoming cover of
InStyle. She has been working hard in her workouts with trainer
Harley Pasternak, creator of
5-Factor Fitness and Diet Plan. She has managed to tone up her entire body, but maintain her feminine curves.