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我们的身体在利用氧气产生能量的过程中,其工作不是完美无缺的,有大约2％的氧气变成了活性氧自由基。我们大脑的重量只占体重的2％,消耗的氧气却占到全身需氧量的20％。因此,大脑中每时每刻都有大量的活性氧自由基产生出来,威胁着我们的大脑细胞。要知道,我们的脑细胞是终身制的,受到损伤死亡后不能再生。我们上了年纪的时候,工作着的脑细胞,还是我们幼小时发育产生出来的脑细胞。脑细胞对我们来说,是最宝贵的,必须严加保护。
Our body does not work flawlessly in the use of oxygen to generate energy, and about 2% of the oxygen becomes reactive oxygen species. Our brains weigh only 2% of our body weight, consuming about 20% of our body oxygen. As a result, a large amount of reactive oxygen species are generated in the brain at every moment, threatening our brain cells. You know, our brain cells are lifelong, can not be regenerated after being damaged. When we were old, we worked on brain cells, or brain cells that we developed when we were young. Brain cells are the most precious to us and must be strictly protected.