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成年人每天约需吸500升氧气,而人体内需要氧气量最多的部位是脑细胞。人脑的重量只占体重的2%~3%,但其耗氧却占全身的20%,脑血流量占心脏输出量的15%。若供氧不足,脑功能就会马上下降,而出现缺氧症状。吸氧,不但能满足人体新陈代谢时氧的需求,增加有氧代谢;而且具有明显的解除疲劳、养神清脑、焕发精神、增加体力,以致养颜驻春、延年益寿的作用。特别是当今,人们为应付快节奏的生
About 500 liters of oxygen is required daily for adults, and the brain that requires the most oxygen in the body is brain cells. The human brain weighs only 2% to 3% of body weight, but its oxygen consumption accounts for 20% of the body, cerebral blood flow accounts for 15% of cardiac output. If insufficient oxygen, brain function will immediately decline, and hypoxia symptoms. Oxygen, not only to meet the oxygen metabolism needs of the human body to increase aerobic metabolism; but also significantly relieve fatigue, refreshing brain, refreshing, increase physical strength, so that Yang Yan in the spring, longevity role. Especially today, people are responding to fast-paced students