Don't eat instant noodles and potato chips to fill your stomach, because too much fat and salt will not only increase the burden on the digestive tract, but also increase blood lipids. Try to fill your hunger with fruit, bread, porridge and side dishes. It's cold, so eat something hot, such as porridge and noodles, to keep your stomach warm and comfortable. Students who stay up late in winter must have a deep understanding that a bowl of hot porridge can make you cry when you are hungry and cold.