贝时璋是我国著名生物学家和教育家,中国科学院最年长的院士。2009年10月29日上午9点30分,他在睡眠中安详辞世,享年107岁。在长达百年的生命中,贝时璋一直十分注重养生。98岁之前,他没有住过院,除了正常的体格检查,他是不去医院的。即使百岁之后, Bei Shizhang is a famous biologist and educator in China, the youngest academician of the Chinese Academy of Sciences. At nine thirty on the morning of October 29, 2009, he died peacefully during his sleep, at the age of 107. In the life of up to a century, Bei Shizhang has been very focused on health. Before age 98, he had not been to a hospital, and he was not going to a hospital except for a normal physical examination. Even after a hundred years old,