通常,人们认为人过中年以后体力和智力都逐渐下降,衰老会不可避免地降临。其实,这是没有足够科学根据的。美国罗切斯德大学的两位科学家,曾经用自己的研究成果,对衰老的传统观点提出了强有力的挑战。他们剖视了15名刚刚死去的病人的大脑。其中有5人是中年人,5人是正常老年人,而另外5人是因为衰老死亡的老年人。他们惊奇地发现,正常老年人的脑细胞树突数、树突长度和分枝 In general, people think that after middle age, both physical and mental decline gradually, and aging will inevitably come. In fact, this is not enough scientific basis. Two scientists at the University of Rochester in the United States used their own research to pose a powerful challenge to the traditional view of aging. They profileed the brains of 15 newly dead patients. Five of them were middle-aged, five were normal and the other five were seniors who died of aging. They were surprised to find that the number of dendrites, dendrites and branches in the brain of normal elderly people