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有些人认为,人到老年脑神经细胞不只数目减少了,而且还有细胞老化,细胞体内有许多脂褐质形成,脑重量减轻,仅及青年人的60％,以致老年人智力下降,记忆力减退。因此,老有所学将发生困难,老有所为受到怀疑。其实这是片面认识,与实际情况特别是与脑科学理论并不完全相符。 一、人的大脑毕生在发展 世界卫生组织(WHO)马勒博士说:“那种把老年人看作风烛残年,既病又废的形象是不真实的。现代老年学研究发现,即使在70岁,他们也还能富有创造性地生活在社会中并起到积极作用。”美国不少退休的老年人认为,“退休并不意味着什么事都干不了,而是给你机会让你去干以前没有时间和精力干的事情”。有些老年人到了晚年,还在创业。90高龄的福雷齐太太的儿女们都独立生活。她呆在家里觉得无聊,于是自愿到“假日公园”照料花草。她实验植物杂交及异花传粉,而且她自己配制了混合盆栽土壤。还有一位85岁的老人出现在高等院校的课堂里,她说:“大脑就是一块肌肉,不使用就会萎缩。所以,我选择使用。”这样的健康老年人不只获得了满足感,也受到社会的欢迎。
Some people think that not only the number of elderly neurons in the brain is reduced, but also the cells are aging. There are many lipofuscin in the body and the weight of the brain is reduced, only 60% of that of young people. As a result, the mental retardation and memory loss of the elderly . Therefore, the old school will have difficulties and old things will be questioned. In fact, this is a one-sided understanding, and the actual situation, especially with the theory of brain science is not entirely consistent. First, the human brain lives in the development World Health Organization (WHO) Dr. Mahle said: “That the elderly as a bad year, both the image of disease and waste is not true.Nearly geriatric study found that, even at the age of 70 And they can also creatively live in society and play a positive role. ”Many retired seniors in the United States believe that“ retirement does not mean that nothing can be done, but it gives you the opportunity to get you to do it before No time and effort to do things. ” Some older people are still in their old age and still start a business. The sons and daughters of the 90-year-old Mrs. Forretch lived independently. She was bored at home and volunteered to take care of the flowers in Holiday Park. Her experimental plants are crossbred and cross-pollinated, and she formulates mixed-potted soil. And an 85-year-old appears in a college classroom where she says: “The brain is a muscle that shrinks when not in use, so I choose to use it.” Not only did such a healthy elderly person get satisfied, By the community welcome.