1, milk. Milk is a nearly perfect nutrient. It is rich in protein, calcium and essential amino acids for the brain. Calcium in milk is most easily absorbed by people and is an indispensable and important substance for brain metabolism. In addition, it also contains vitamin B 1 and other elements that are very beneficial to nerve cells. If you have excessive insomnia with your brain, a cup of hot milk before going to bed will help you fall asleep.

2. eggs. Brain activity function and memory intensity are closely related to acetylcholine content in the brain. Experiments have proved that the beauty of eating chicken is that when lecithin in egg yolk is decomposed by enzymes, it can produce rich acetylcholine, which can reach brain tissue quickly after entering the blood and enhance memory. Foreign studies have confirmed that eating 1 or 2 eggs a day can supply enough choline to the body, which is of great benefit to protecting the brain and improving memory.

3. fish. They can provide high-quality protein and calcium for the brain. The fatty acids contained in freshwater fish are mostly unsaturated fatty acids, which will not cause arteriosclerosis and do no harm to cerebral arteries and vessels. On the contrary, they can also protect the cerebral vessels and promote the activity of brain cells.

4, monosodium glutamate. The main component of monosodium glutamate is sodium glutamate, which can be converted into glutamic acid under the action of gastric acid. Glutamate is the only amino acid involved in human brain metabolism, which can promote intellectual development and maintain and improve brain function. Regular intake of monosodium glutamate is helpful to improve mental retardation and memory impairment. Because monosodium glutamate can increase acetylcholine in the brain, it also has a certain effect on neurasthenia.

5. peanuts. Peanut is rich in lecithin and cephalin, which is an important substance needed by nervous system. It can delay the decline of brain function, inhibit platelet aggregation and prevent cerebral thrombosis. Experiments show that eating peanuts regularly can improve blood circulation, enhance memory and delay aging, which is a veritable "longevity fruit".

6. Xiaomi. Vitamin B 1 and B2 in millet are 1.5 times and 1 times higher than those in rice, respectively, and protein contains more tryptophan and methionine. Clinical observation shows that eating millet can prevent aging. If you usually eat more millet porridge and rice, it is beneficial to the health care of your brain.

7. corn. Corn germ is rich in unsaturated fatty acids such as linoleic acid, which can protect cerebrovascular and reduce blood lipid. Especially, the high water content of glutamic acid in corn helps to promote the metabolism of brain cells. Eating some corn often, especially fresh corn, has a brain-strengthening effect.

8. Day lily. People often say that day lily is a "girl without sorrow" and can "soothe the nerves and relieve depression". Note: Daylily should not be eaten raw or fried alone to avoid poisoning. It is best to eat it dry and cooked.

9. Chili. The content of vitamin C in pepper ranks first among all vegetables, and it is also rich in carotene and vitamins. Capsaicin contained in pepper can stimulate taste, increase appetite and promote blood circulation in the brain. In recent years, it has been found that the "spicy" taste of pepper is also a hormone in the human body that stimulates the pursuit of career success, making people energetic and active in thinking. Red peppers are better eaten raw.

10, spinach. Spinach is cheap and humble, but it is a brain-nourishing vegetable. Because spinach is rich in vitamins A, C, B 1 and B2, it is one of the "best suppliers" of brain cell metabolism. In addition, it also contains a lot of chlorophyll, and it also has the function of strengthening the brain and improving intelligence.

1 1, orange. Oranges contain a lot of vitamins A, B 1 and C, which are typical alkaline foods and can eliminate the harm of a lot of acidic foods to the nervous system. Eating oranges in moderation during the exam can make people energetic. In addition, lemon, citrus, grapefruit and so on. It has a similar effect and can replace oranges.

12, pineapple. Pineapple contains a lot of vitamin C and trace element manganese, and it is low in calories. Often eat shengjin refreshing effect. Some people call it a fruit that can improve people's memory. Pineapple is often the favorite fruit of some musicians, singers and actors, because they have to memorize a lot of music scores, lyrics and lines.

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Five foods that impair memory

The physiological demand for salt in salty food is extremely low, below 7 grams per day for adults and below 4 grams per day for children. Eating salty food often will damage arteries and blood vessels, affect the blood supply of brain tissue, and make brain cells in a state of ischemia and hypoxia for a long time, leading to memory loss and premature aging of the brain.

Lead in lead-containing food can replace iron, calcium, zinc and other minerals in the nervous system, so it is a big "killer" of brain cells. Lead-containing foods are mainly popcorn and preserved eggs. It should be noted that the lead content of "lead-free preserved eggs" is not equal to zero, but lower than the corresponding national standards, and it is not suitable for mass consumption.

The World Health Organization pointed out that the daily intake of aluminum should not exceed 60 mg, and the alum in fried dough sticks is an inorganic substance containing aluminum. If you eat 50- 100 grams of fried dough sticks a day, you will exceed this amount.

Foods containing lipid peroxide, fried foods with oil temperature above 200℃ and foods exposed to the sun for a long time, such as smoked fish, roast duck and roasted goose, contain more lipid peroxide, which will accumulate in the body, damage some metabolic enzyme systems and promote premature aging or dementia of the brain.

Eating too much saccharin in foods containing more saccharin and monosodium glutamate will damage brain cells; A small amount of monosodium glutamate is safe, but it is best not to eat it for infants under one year old and pregnant women in the third trimester. Infants eating monosodium glutamate may cause brain cell necrosis; Eating it by pregnant women will cause zinc deficiency in the fetus and affect children's intellectual development.