Emotional fatigue refers to people engaged in long-term monotonous, mechanical work activities, accompanied by changes in the biochemical aspects of the body, the central and local nerve cells due to the continuous tension and inhibition, resulting in a person’s enthusiasm for work and interest in life is significantly reduced, until boredom arises. Emotional fatigue is mainly manifested in behavioral changes. Various parts of the human body, from the central cerebral cortex cells to the basic contractile units of skeletal muscle can produce fatigue. 1, fatigue test Fatigue test is to check the degree of human fatigue experiments, through the human fatigue detector on the human tongue or saliva will be able to know the pH value, through the pH value to know the degree of human fatigue. 2, vitamin H test Vitamin H is biotin, coenzyme R, is a water-soluble vitamin, also belongs to the vitamin B family. It is necessary for the synthesis of vitamin C, fat and protein metabolism indispensable substances. Vitamin H is a water-soluble vitamin necessary for the maintenance of natural human growth and normal body functions; it is an indispensable substance for the metabolism of fats and proteins, and a nutrient necessary for the maintenance of normal growth, development, and health, and it cannot be synthesized artificially. 3, fatigue self-test test Fatigue self-test test is to test themselves whether they are in a state of fatigue, fatigue has physical fatigue, mental fatigue, pathological fatigue, there is also a kind of chronic fatigue that can not find any clear reason but a few days to recover. If fatigue is allowed to continue to develop, it can lead to cumulative fatigue. Therefore, medical experts suggest that it is important to have proper rest and not to carry today’s fatigue into tomorrow, otherwise, it will mean that your health is stepping to the edge of danger.