1. Peanut
Peanut contains a large number of lecithin and cephalin, both of which are important materials for the nervous system. It can delay the decline of brain function, inhibit platelet aggregation, and prevent thrombosis. Experiment has confirmed that, often eating peanuts can improve blood circulation, enhance human memory, and delay the aging process. As a result, it is really a good fruit to prolong human life.

2. Millet
Millet contains a high content of vitamin B1 and B2, which is 1.5 and 1 times higher than that contained in rice respectively. The protein of millet contains plenty of tryptophan and methionine. Clinical researches have found out that, eating millet can help preventing aging. In addition, if you always eat some millet in daily life, it is very beneficial for the health of the brain.

3. Corn
Corn is rich in linoleic acid and other unsaturated fatty acids, which have the effect of protecting the blood vessels of the brain and bringing high blood pressure down. In particular, corn contains a great amount of glutamate, which can help promote the metabolism of the brain cells. As a result, eating more corn, especially fresh corn, has the effect of improving the health of the brain.

4. Chilli
Chilli contains the most abundant vitamin C among all the vegetables. What's more, it is also rich in carotene and other kinds of vitamins such as vitamin A, vitamin D, and so on. The capsaicin contained in chilli can stimulate the sense of taste, improve the appetite, and promote the blood circulation in the brain. In recent years, it is found that the "spicy" flavor of chilli is also a kind of hormone which can stimulate people to pursue the success of a career, because it can make people full of energy and active in thinking.

5. Spinach
Spinach is one of the best vegetables for the health of the brain. Because spinach is rich in vitamins A, vitamin C, vitamin B1 and vitamin B2, so it is one of the "best suppliers" for the metabolism of the brain. In addition, it also contains a lot of chlorophyll, which also has the effect of promoting the health of the brain and improving human intelligence.

6. Orange
Orange contains a large number of vitamin A, vitamin B1 and vitamin C. It is a typical alkaline food, which can eliminate the harm on the nervous system caused by the large number of acidic foods. Eating some oranges appropriately during the examination period can make a person full of energy. In addition, lemon and grapefruit also have similar effect.