《美国老年医学会杂志》上发表的一项新研究通过考察246名孩子的性格特征研究了这个问题，这些孩子都是100岁以上老人的后代。
A new study in the Journal of the American Geriatrics Society looked at this question by examining the personality characteristics of 246 children of people who had lived to be at least 100.
匹兹堡大学医学中心的一项研究发现，超过65岁走路速度至少为每小时2.5英里的老人，比那些没有走路没这么快的人更长寿。
A University of Pittsburgh Medical Center researcher found that people over 65 who walk at a pace of at least 2.5 miles per hour live longer than those who don't.
他没有医学学位所以不愿意别人叫他“唐医生”，但当地的老人还是喜欢这样称呼他。
Elderly folks refer to him as "Dr. Don," although he has no medical degree and discourages people from using this title.
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