The answer is not like this, because the digestion and absorption of food is a very long process, whether standing or lying down is the same. Just after eating, food is digested in the stomach, and it takes several hours to enter the small intestine, which is the main part of our body to absorb nutrients. Excess heat exists in the small intestine to form fat. If you take a long time after a meal, you will definitely gain weight. People are fat, not because they lie down and sleep right after eating, but because some people are lazy and lie down for hours, so it is really meaningless not to be fat. As long as you don't lie down for many hours, you'll be fine. Don't worry too much. If you want to maintain the fitness effect, the key is to persist for a long time, keep your mouth shut and open your legs. Some people don't want to stick to fitness after it has worked. In the future, their bodies will be shaped. Actually, it's not. After a while, their bodies will bounce back. After a long time of fitness, you will feel unaccustomed if you don't exercise, which will keep good fitness habits and help you keep fit. In addition to fitness, you also need to control your mouth, so as to better maintain your perfect figure. Don't overeat at ordinary times, don't eat too much high-calorie food, you can eat some low-calorie food, and pay attention to balanced nutrition, otherwise it will easily lead to malnutrition, which is not conducive to your health. It is best not to go on a diet to lose weight. The best way is to lose weight scientifically.