It's definitely effective, but besides exercising to reduce your stomach, you should also lose weight correctly on food. Breakfast, lunch, dinner or eat regularly. Don't eat too much for breakfast. Eat more for lunch, not too much for dinner. There are several kinds of fruits every day, so you must get enough sleep for 8 hours, and you can have time to do other sports or take a walk after meals. Breakfast is a must! If you don't eat, you will be fatter! Be sure to get enough sleep, or you will get fat! Just remember these points and make sure there is no small belly for two weeks!