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疲劳是一种生理现象,在某些时候又是一种人体发生疾病乃至严重疾病的报警信号: 它告诉你:该休息啦!疲劳感本身是身体向大脑发出的告急信号,人之所以产生疲劳的感觉,是由于体力或脑力劳动时间过久或强度过大,体内组织器官需要的营养物质和氧气供应不足,代谢废物乳酸等积蓄增多,进入大脑组织而引起,当经过有效的休息之后,疲劳感是有益于人体健康的一种保护性反应。人体的疲劳分为生理性与病理性两大类,
Fatigue is a physiological phenomenon, at some point in time a warning sign of illness and even serious illness in the human body: it tells you: the rest! Fatigue itself is the body’s emergency signal to the brain, people are tired The feeling is due to physical or mental labor for too long or too much strength, body tissues and organs needed nutrients and oxygen supply, metabolic waste lactic acid and other savings increased, into the brain tissue caused, when after an effective rest, fatigue Sense is beneficial to human health as a protective reaction. Human fatigue is divided into two categories of physiological and pathological,