This is because if you get enough sleep, your body will naturally be more responsive to any kind of exercise program and we all know that without a killer exercise program, you don’t have a chance of getting a flat stomach. No matter how much exercise you do, it’ll all go to waste unless you also maintain a balanced diet. In order to know How To Get A Flat Stomach Fast For Teenagers and lose weight, it is important that you get a good amount of rest. My Profile: More Typography: