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疲劳,一般是指在作业过程中因过度劳累而引起的劳动能力下降现象。具体表现为:思维涣散、腰酸背痛、不愿动作等疲倦感,皮肤感觉、思考及应变能力迟钝、混乱,动作灵活性和协调性降低,同时表现为神经系统方面的功能性异常,如头晕、头疼、瞌睡、失眠,从而进一步出现工作困难,动作准确性丧失或与熟练程度不相称的极度紧张,极易发生错误和生产性事故。疲劳长期得不到消除,可造成疲劳蓄积,严重时可成为各种疾病(如肺结核、心脏病、贫血、眼病、消化系统疾病)的诱发因素。
Fatigue, generally refers to the work process due to overwork and caused by the decline of working capacity. Specifically manifested as: mental retardation, back pain, unwilling to move and other tiredness, skin sensation, thinking and adaptability sluggish, confusion, reduced mobility and coordination, while showing the nervous system dysfunction, such as dizziness , Headaches, drowsiness, and insomnia, resulting in further work difficulties, loss of accuracy of movement or disproportionate levels of proficiency, extremely prone to errors and productive accidents. Long-term fatigue can not be eliminated, can cause fatigue accumulation, in severe cases can become a variety of diseases (such as tuberculosis, heart disease, anemia, eye diseases, digestive diseases) induced factors.