1. Occupational health is a disease caused by research and prevention to prevent the deterioration of the original disease. It is mainly manifested in the changes of human physiological functions caused by exposure to harmful factors in the environment and work. 1950 The definition given by the Joint Occupational Committee of the International Labour Organization and the World Health Organization: The purpose of occupational health should be to promote and maintain the physical, psychological and social conditions of employees in various industries; Prevent the health of employees from being affected by the working environment; Protect employees from health hazards; And arrange employees in a working environment suitable for their physiology and psychology.
2. Including the following aspects: occupational health examination, occupational health monitoring file management, occupational population health status evaluation, occupational population dynamic management, etc.