学生迎考的最大障碍莫过于复习时间一久,就逐渐感到精力不济、头脑浑沌,温课迎考为什么会出现头晕脑胀呢?大脑是身体中的耗氧大户,其重量虽然只占体重的2%,但耗氧量却高达20%～25%,高强度运转时能达到32%。大脑十分容易受到损伤——若没有足够的氧气由血液不断输入,很快就会感到疲劳。 The biggest obstacle for students to test than review time for a long time, they gradually feel bad, mind chaos, warm class welcome test why there will be dizzy brain? Brain is the body of oxygen-consuming large, although the weight of its weight 2%, but the oxygen consumption is as high as 20% ~ 25%, high-intensity operation can reach 32%. The brain is very vulnerable - if not enough oxygen is constantly being supplied by the bloodstream, it quickly fatigues.