Contrary to what many people believe, doing thousands of sit-ups or crunches all day, every day, will not get you closer to achieving those washboard abs. Yep, you read that right. Both belly bulge and love handles are about excess body fat, NOT lack of muscle. That's why ab exercises alone are not the solution. Scoring a flat stomach is all about workouts that impact different muscle groups at the same time — so you're strengthening your entire body AND burning more calories.
This is why I'm such a huge advocate of circuit training and use them in my online workouts and in my DVDs. When done properly, circuit training builds lean muscle and improves aerobic fitness simultaneously, making this type of exercise the most effective fat-burning workout you can get. In fact, if you aren't already up on circuit training, it's time to get acquainted now because it should be your new weight-loss best friend.
Each circuit is a combination of strength training and cardio exercises (about four to five) that are performed directly after one another, with little or no rest in between. When a set of these moves is done, you go back to the beginning and do them again before moving on to the next circuit. A typical circuit-training workout will get your heart rate up and impact a variety of muscles — not just one body part — which is the BEST way to burn off that belly fat.