Why Americans are so fat? They eat too much and exercise too little.
PBS Frontline 有一期‘Diet Wars’感兴趣的朋友可以看看。
http://www.pbs.org/wgbh/pages/frontline/shows/diet/view/
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很敬佩他的勇气. 当初被同行笑话,坚持三十年,不容易。谢谢
-weston-
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08/14/2007 postreply
19:11:58