1, which is beneficial to improve energy, immune system health and concentration. Bananas, almonds and natural peanut butter contain vitamin B. Fruits and vegetables, as well as moderate amounts of dark chocolate and green tea can provide antioxidants for the human body. Tuna, salmon and walnuts contain Omega- 3 fatty acids and can be eaten in moderation.

2. High-energy staple food is more conducive to sustained physical strength for a long time than sugar and white bread. Try cereal or whole grains, such as oatmeal, beans or sweet potatoes and brown rice.

3. Eating more whole grains in summer can replenish potassium lost in the body and effectively prevent drowsiness and listlessness in summer. For example: buckwheat, corn, sweet potato and so on. It can relieve acid-base imbalance, metabolic disorder and the loss of trace elements such as potassium, and can prevent and treat summer sleepiness.

Foods that should not be eaten are:

1, some candidates are on the road. Near the examination room, buy an ice cream to cool down, because they are already nervous and catch up with summer, and their bodies are as hot as fire. Eating an ice cream will reduce the temperature, but it will cause gastrointestinal discomfort, gastrointestinal diseases or stomachache. If cold drinks such as ice cream are unsafe or the quality cannot be guaranteed, the problem will be even bigger.

Try not to give candidates these cold dishes and stewed dishes. Cold salad, first of all, in the cleaning process, is likely to be washed unclean, with bacteria or germs residue; Second, the cold salad is well done, and different dishes have different fungi, which is easy to conflict. Even if there is no conflict, various problems may arise because of unsafe hygiene.