疲劳是日常生活中一种常见的现象,几乎每个人都经历过。只要针对相应的原因去处理,疲劳也会消除的。睡眠不足可导致疲劳,但有些人疲劳并非睡眠不足,反而是睡眠过多。因为人在睡眠时,血液循环减慢,养分和氧对脑的供应都大大减少,如果睡眠时间过长,脑细胞就得不到足够的养分和氧的供应,其活动能力就减少。肌肉等组织从血液中得到的养分和氧也较少,肌肉也就变得松弛无力,体力自然削弱,导致疲劳。因此,凡睡眠超过正常的睡 Fatigue is a common phenomenon in everyday life, experienced by almost everyone. As long as the corresponding reason to deal with, fatigue will be eliminated. Lack of sleep can lead to fatigue, but some people are not tired but not sleep, but sleep excessively. Because people slow down blood circulation, nutrients and oxygen supply to the brain are greatly reduced, if the sleep time is too long, brain cells will not be able to get enough nutrients and oxygen supply, their mobility reduced. Muscles and other tissues get less nutrients and oxygen from the blood, the muscles become loose and weak, physically weaken, leading to fatigue. So, sleep more than normal sleep