Monks have also experienced fasting. They call it hunger therapy. In fact, this concept also exists in modern marketing concepts. Some people who pay attention to health have learned this trick without a teacher. Like my colleague, an uncle who is about to retire at the age of 60, just doesn't eat after noon. He said that the elderly should not eat too much to avoid increasing consumption. But he suggested that young people eat after noon.
Another local elder sister in Guangzhou, who is in her forties, said that every time she gets sick, she usually eats less and gets better quickly. Although these phenomena can't be explained scientifically, they are indeed a better way to keep fit than overeating. As long as you don't feel hungry, eat less and lighten your body burden, there won't be so many rich diseases. People will live longer.