People's abdominal muscles are eight, but it is difficult for ordinary people to practice eight, basically four to six. Nei Er doesn't mean that he can't be used, but that he can't see it, which is especially difficult to practice, because he grew up in the abdominal cavity, so it is difficult to practice! You can look at some bodybuilders, some of them are only 4-6 yuan or 8 yuan. You can go to Baidu Pictures, hit Mr. Bodybuilding and find pictures. Just look at their pictures, because this is a genetic problem, so there is no way to change it. Even if some bodybuilders don't want to practice 8 pieces, they can't practice!