From training with a Bosu ball to consuming a protein-packed diet, here are eight celebrities who swear by these flat-belly tips.

Celebrities like Kylie Jenner and Hilary Duff are fans of the 12-3-30 incline treadmill workout. Here's how it works.

Demi Moore was recently named one of the world’s “most influential people” by Time Magazine. Here are some of her iconic ...