每一种职业都有自己独特的生产方式和工作方式。在这种特定的环境中,人们的劳动态度劳动方式和劳动强度是不一样的,它所产生的生理、心理、精神效应及体力消耗也是不一样的。脑力及体力劳动强度过大,劳动时间过长或劳动环境差,都会使正常的生理机能遭到破坏,使劳动能力下降,甚至损坏劳动者的健康。随着生产力水平的不断提高,社会分工越来越 Each job has its own unique mode of production and working methods. In this particular environment, people’s working attitude and labor intensity are not the same, it produces the physical, psychological, mental effects and physical exertion is not the same. Mental and physical strength is too large, work time is too long or poor working environment, will make the normal physiological function was destroyed, so that the ability to work down, or even damage the health of workers. As the level of productivity continues to increase, the division of labor in society has become more and more frequent