Generally, you can refresh your brain by drinking functional beverages, adjusting your habits, and stimulating the facial nerves appropriately. 1. Appropriate consumption of functional beverages: when people are in a state of fatigue, you can drink coffee, red bull, strong tea, etc. to refresh the brain, but drink in moderation, but also pay attention to heart disease, caffeine allergy should be prohibited for the population, pregnant women and children should also be used with caution. 2. Adjustment of habits: It is recommended to have a reasonable work and rest schedule to avoid staying up late, overwork and so on. When sleepy, you can do some exercise to stimulate the brain to refresh the brain, such as stretching, walking and so on. 3. Appropriate stimulation of facial nerves: at the same time the use of cool oil in the temple smear, or wash your face with cool water, stimulate the facial nerves, help to refresh the brain, but be careful not to use frequently. It should be noted that, if the usual physiological sleepiness, can be solved by the above methods; but if it is pathologic, we should consult a doctor in time to identify the cause of the disease and treatment, can not be forced to lift the spirit or self-medication to solve the problem.