The simplest and most common abs workout is Crunches, which is more or like similar to sit ups, except that instead of lifting your full back off the floor, here you only lift your upper back. Also called stomach crunches, they hit your upper abs and thus giving a perfect up to your your 6 pack abs goal. If you are aiming to only get flat stomach, then read How to Reduce Fat instead as this wont help much in reducing your belly, for that you need to reduce your overall body fat first. Although this exercise is core for abs building. Read more… “Crunches”