flat stomach

The desire for flat abs can run deep, no matter your age or profession. (We blame J. Lo.) When You're In Your 20s... Though your metabolism starts to drop by 1 to 2 percent when you cross from your teens into your twenties (that means, if you're burning 2,500 calories a day in your teens...

Klaus Vedfelt / Getty All those crunches and planks will not only give you a flatter stomach—they could also save your life. People with higher levels of visceral fat (fat stored around organs in the abdominal area) and thigh fat have a higher risk of aggressive prostate cancer, according to a...