Scientific research confirms that, diet is not only a necessity for the maintenance of human life, but also plays a very important role in the normal operation of the brain. Some kinds of food can promote the development of human intelligence, make people more quick-minded and more attentive, and can even inspire the creativity and imagination of human being. Nutrition and health experts recommend the following four kinds of food, which are very useful for the improvement of human memory.

Firstly, milk
Milk can be regarded as a kind of perfect drink. It is rich in protein, calcium, and some amino acids essential to the brain. The calcium contained in milk can be easily absorbed by human body, and it is an important and indispensable substance for the metabolism of the brain. In addition, it also contains a variety of elements, such as vitamin B1, which is very useful on the nerve cells. What's more, if you suffer from insomnia, you can drink a glass of hot milk before bedtime, which can help you fall asleep quickly.

Secondly, egg
The function of brain activity and human memory are highly related with the content of acetylcholine in the brain. Experimental results show that: after the large content of lecithin contained in egg yolk is decomposed by enzymes, it will produce a lot of acetylcholine. When the acetylcholine enters into the blood and soon reaches the brain, it can enhance the memory. Foreign study confirms that, eating one or two eggs every day can supply sufficient acetylcholine to the body, which is very useful for the protection of the brain and the improvement of memory.

Thirdly, fish
Fish can provide a lot of high-quality protein and calcium to the brain. The fatty acids contained in freshwater fish are mostly unsaturated fatty acids, which will not cause the hardening of arteries, and have no damage on the cerebral arteries. On the contrary, they can also protect the brain blood vessels, promote the activity of brain cells, and improve human memory.

Fourthly, MSG
The main component of MSG is sodium glutamate, which can be changed into glutamate under the action of gastric acid. Glutamate is the only amino acid which participates in the cerebral metabolism. It can promote mental development, maintain and improve the function of brain. Regular intake of some MSG can improve the mental retardation and memory impairment. Because MSG can cause the increasing of acetylcholine in the brain, so it also has a certain effect on the nervous breakdown.