论文部分内容阅读
考前大脑要求多在高考备考期间,由于生活和学习节奏较快,考生的大脑处于高度紧张状态。这时,大脑对氧气和某些营养素的需求比平时增多。大脑是人体中消耗氧气最多的器官,因此,大脑对缺氧非常敏感,即使有大量的血液为大脑输送氧气,但当脑细胞活动过于剧烈,或活动时间过长(如看书或学习时间太久),仍然会有氧气供应不足的情况出
Pre-test brain requirements more In the college entrance examination preparation period, due to rapid pace of life and learning, the examinee’s brain is in a state of high tension. At this moment, the brain’s need for oxygen and some nutrients is more than usual. The brain is the organ that consumes the most oxygen. Therefore, the brain is very sensitive to hypoxia. Even though a large amount of blood supplies oxygen to the brain, when the brain cells are too violent or have too long activity (such as reading or studying for too long ), There will still be a shortage of oxygen out of the situation