Walking a hundred paces after a meal can live ninety-nine. This sentence is scientific. Don't eat too much, 80% at most. Eating too much will add extra burden to the stomach. Don't drink water or loosen your belt for half an hour after meals. Walk slowly for 20-30 minutes if you can, stand up straight if you can, and massage with your hands in circles on your abdomen. Just try it. Very effective.