Scientist Dmitry Kulikov advised eating dried fruits and marshmallows during periods of intense work. Foods that help improve alertness and make the brain work better should contain glucose, fatty acids, amino acids and antioxidants.

The diet should include sea fish and green beans, as they contain zinc, which helps improve memory. Vitamin C, found in citrus fruits, cabbage and tomatoes, will help combat stress. Calcium, which dairy products are rich in, will ensure the normal functioning of the nervous system.