常年堅持鍛煉跑步的人，70多歲照樣跑馬拉鬆的也有。當然因人而異，有的人會損壞膝關節，如小布什。

來源: 吃素的狼於 2013-07-17 23:39:50 [舊帖] [給我悄悄話] 本文已被閱讀：次

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