衰老是人类普遍存在的生理现象,但是衰老的过程每个人各有不同,而且有各种不同的表现。我们经常可以看到,有些人年纪还不到半百,而眼睛已昏花,牙齿动摇脱落,弯腰佝背等明显的衰老现象已出现了;也有不少人,虽年逾古稀,仍精神矍铄,行动自如,思路敏捷,谈笑风生,意气风发。同样是老年人,为什么会产生悬殊的差别呢?除了生理上的原因 Aging is a common physiological phenomenon in humans, but the process of aging varies from person to person, and has various manifestations. We can often see that some people are less than half of their age, and the obvious signs of aging such as the eyes have been dusk, the teeth shaking off, bending over their backs and so on have appeared. Many people, though seventy years old and still spiritually shy, Action freely, quick thinking, laughing, high-spirited. The same is the elderly, why there are differences between the disparity? Except for physical reasons