1. Walnut is recognized as a traditional brain-nourishing and educational food in China because it is rich in unsaturated fatty acids. Children must eat it. \xd\ 2-3 walnuts a day is appropriate, and persistence can play a role in nourishing the brain, enhancing memory and eliminating brain fatigue. But you can't overeat, and overeating will cause dry stools and nosebleeds. \xd\2. Peanut \xd\ Peanut is rich in pantothenic acid, which can improve memory. Pantothenic acid (calcium pantothenate), combined with egg yolk and lecithin contained in soybean, can improve memory. \xd\3. Nicotinic acid (vitamin B3) rich in oysters and animal liver can also improve memory. The ingredients rich in pantothenic acid are yeast, peanuts, tofu, green onions, leeks, broccoli and so on. 4. Milk \xd\ Milk is an excellent source of high-quality protein, riboflavin, potassium, calcium, phosphorus, vitamin B12 and vitamin D, which can provide various nutrients for the brain. It should be noted that sugar should not be eaten more. Because sugar enters the blood, it can increase the blood concentration and slow down the blood flow, which is acidic. Slow blood flow will produce cerebral thrombosis; Acidic environment is not conducive to the transmission of information in the nervous system, which makes the brain slow.