人到40岁以后脑细胞数目逐渐减少，50岁可减少20%: trade less and think more

来源: 于 2009-06-23 17:21:59 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次
人到40岁以后脑细胞数目逐渐减少，50岁可减少20%

trade less and think more