1. Chili
Chili contains a large number of vitamin C and carotene, both of which are beneficial to human health. What's more, chili contains capsaicin, which can stimulate the sense of taste, increase appetite, and promote the blood circulation of the brain. In addition, the "spicy" flavor can make people energetic and active in thinking.

2. Millet
The content of vitamin B1 and vitamin B2 contained in millet is 1.5 times and 1 times respectively higher than that of rice. Its protein contains a large number of tryptophan and methionine. Clinical observation has found out that, eating millet not only has an anti-aging effect, but is also beneficial to health of the brain.

3. Spinach
Although spinach is an ordinary vegetable, it is one of the best foods for the health of brain. Because spinach is rich vitamin A, vitamin C, vitamin B1, and vitamin B2, so it is "one of the best suppliers for the metabolism of brain cells". In addition, it also contains a lot of chlorophyll, which also has the function of invigorating brain and improving intelligence.

4. Milk
Milk is rich in protein, calcium, and many essential amino acids which are needed by the brain. The calcium contained in milk can be easily absorbed by the body, and it is an important and indispensable substance for the metabolism of brain. In addition, it also contains vitamin B1, which is very beneficial to nerve cells. If you suffer from insomnia after heavy work, you can drink a glass of hot milk before bedtime, which can improve your sleep quality.

5. Egg
Experiment has shown that, human memory is closely related with the level of acetylcholine in the brain. When the lecithin contained in egg yolk is decomposed by enzymes, it can produce a lot of acetylcholine. After the acetylcholine enters into the blood, it will soon reach brain tissue, so it can enhance the memory. Foreign research has proved, eating 1 or 2 eggs everyday can supply enough acetylcholine to the body, so it is very beneficial to protect the brain and improve human memory.

6. Pineapple
Pineapple contains a lot of vitamin C and trace elements. In addition, it is low in heat. Often eating pineapple has the effect of promoting the secretion of saliva or body fluid, as well as refreshing human mind. Some people regard pineapple as a kind of fruit to improve human memory. As a result, pineapple is the favorite fruits for some musicians, singers and actors, because they have to recite a lot of music score, lyrics and lines.