Sweet potato is rich in vitamins B, E and β-carotene. Among them, the content of vitamin E is twice as much as that of brown rice, which has very good antioxidant and fatigue relieving effects. According to the research of Harvard University, β -carotene can delay the mental deterioration caused by age, and enable office workers to maintain more acute thinking ability.

Improving memory: fish

60% of brain cells are composed of unsaturated fatty acids, of which DHA is the most important. DHA is an important component of brain nerve cells, which is very important for the conduction of brain neurons and the growth of synapses, and can enhance brain intelligence, memory and concentration.

The content of DHA in terrestrial meat and vegetables is almost zero, and it only exists in marine meat, among which deep-sea fish is the most abundant, especially in orbital fat and fish skin. However, large deep-sea fish are at the top of the food chain and accumulate too much heavy metals in their bodies, so it is not suitable to eat too much. On the contrary, it is saury with higher DHA content than salmon, which is more suitable.

Improve memory: lean meat

Compared with fat meat, lean meat has less fat and higher protein content, so its nutritional value is higher. Besides protein, lean meat is also rich in vitamins B and E, as well as minerals iron and phosphorus. Iron is an important component of hemoglobin in red blood cells. Hemoglobin is a tool for the human body to transport and exchange oxygen, which can keep the brain alive. Iron deficiency can cause anemia, mental distraction and memory loss. Phosphorus is a key substance involved in nerve fiber conduction, energy generation and storage, and an indispensable element for brain operation.

Improve memory: milk

Milk is rich in protein and mineral calcium, which are important sources of nutrition for the brain. Protein is the raw material of human body, and it is also one of the important elements to make brain cells and neurotransmitters, which can help the development of the brain. Calcium can inhibit abnormal discharge of brain cells, stabilize mood, promote good sleep, reduce physical fatigue and enhance resistance. A glass of milk before going to bed can help the brain get a fuller rest.

Improving memory: oats

Oats have always been called "the food of the brain" by nutritionists. Besides being a food with low GI (glycemic index), blood sugar is not easy to rise after eating. Oats are also rich in vitamins B, E and mineral zinc, which are beneficial to the brain. Vitamin E can inhibit the accumulation of purplish brown matter in brain cells, reduce fatigue and prevent brain aging. Zinc is a component of many kinds of vitamins, which can enhance memory, and when zinc is lacking, it will lead to mental depression. A bowl of oatmeal for breakfast can provide the brain with vitality for a day.

Improve memory: bananas

The heat source of brain cells is different from other cells, which can only rely on glucose and cannot be obtained from other nutritional forms, while carbohydrates are the main source of sugar. Bananas are not only rich in carbohydrates, but also a lot of pectin and vitamin B. Pectin can slow down the release of glucose and avoid excessive fluctuation of blood sugar; Vitamin B can promote sugar to be fully converted into energy, assist protein's metabolism and maintain the normal function of brain cells. If you want to keep your brain at its peak, just add a banana at any time.

In short, how to better concentrate and improve memory? In addition to good learning methods, if you can match a reasonable daily diet, you can complement each other.