Nowadays, most exercisers for a flat stomach still rely either on a long-duration, moderate-paced aerobic routine or on crunches, sit-ups, and other exercises focused solely on the abdomen. — This is a big, major mistake, and here is why: First, aerobic exercises performed at a moderate pace for extended periods burn fat only during the exercises. This may sound good for those who want a flat stomach, but it is terrible.
