生、老、病、死,是不可抗拒的自然规律。我国古代的思想家们早就告诉我们:“生之有长,长之有老,老之有病,病之有死”。说明了人从出生那天起就开始在死亡线上挣扎,拼搏,正如恩格斯所说的:“生就意味着死”。生命的特征就是新陈代谢,这是人之皆知的生命运动规律。一个人每天大约有3500—4000亿个红白细胞遭到破坏和死亡,但同时,又会有与之相应数目的红白细胞诞生,源源不断地注入 Health, old age, sickness and death are irresistible laws of nature. Ancient Chinese thinkers have long told us: “There is a long, long and old, old and sick, sick and dead.” It shows that from the moment of birth, people began to struggle and fight on the death line. As Engels put it: “Being born means death.” The characteristic of life is metabolism, which is the well-known law of life movement. About 350-400 billion red and white cells are destroyed and dyed daily, but at the same time, a corresponding number of red and white cells will be born and a steady stream of infusions will be injected