- 问题详情: Whatwouldittaketopersuadeyoutoexercise?Adesiretoloseweightorimproveyourfigure?Tokeepyouawayfromdiseases?Tolivetoahealthyoldage?You'dthinkanyofthosereasonswouldbeenoughtogetAmericansexercising.YetavastmajorityofAmericanshavethusfarfailedt...
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