Green tea has a long history of refreshing. This is mainly because green tea contains L- theanine, amino acids and other ingredients, and it can also enhance alpha brain waves. If you think there is too much caffeine in coffee, you can choose to drink green tea, which will eventually achieve the purpose of relaxation and concentration.

2. Coffee cinnamon

Coffee is refreshing, obviously. Drinking coffee will refresh you and concentrate in a short time. Adding cinnamon can make the brain more active. In 2009, scientists found that the aroma of cinnamon can improve people's alertness and reduce emotional frustration.

3. Blueberries

Studies have shown that eating dark berries such as blueberries can help reduce the risk of Alzheimer's disease. Meanwhile, scientists found that eating blueberries can improve attention and memory for up to five hours. This is mainly because blueberries are rich in various antioxidants, which can make the brain run faster and make intellectual tasks easier.

4.dark chocolate

Dark chocolate can promote blood flow to the brain, and eating some dark chocolate every day can help prevent age-related memory decline. Meanwhile, dark chocolate can stimulate the release of neurotransmitters in the brain.

5, mint tea

Even without caffeine, this delicious drink can refresh your mind. Studies have found that the fragrance of mint helps to relieve anxiety, relieve fatigue and enhance work motivation.

People's Network-Eat more than 8 kinds of food to improve attention.