Do more exercise and drink less soda. When you are hungry, drink plenty of water. Before going to bed every night, lie in bed and rub your stomach. Repeat 30 times clockwise and counterclockwise at 3 cm of your abdominal muscles. Similarly, before getting up in the morning, you do the same thing, which will help your gastrointestinal motility. It has a certain effect, but it still needs your persistence!