文档介绍：unit2JimFixxhadbeenaheavysmokerandweighed214poundswhenhetookup(开始从事)(收割者),pleteBookOfRunning,waspublished. Hisbookinspired(有灵感的),heextolledthebenefitsofphysicalexerciseandhowitconsiderably(显著地)increasedtheaveragepeople’-,totheirshock,(证据),hissupportersrevealed (揭露)thattherealcauseofFixx’ (规定的) Fixx’sunhealthylifestyleuntilhetookuprunning,manyarguedthatrunningaddedmanyyearstohislife.“ings,”Acknowledges(承认)heartspecialistPaulThomas,inarecentmedicaljournal.“Theimpact(影响),particularly(特别),thenewsforrunnersisn’,moderate(温和的) amountofrunningexercisecanactuallyresultin(导致) alonger,improvedlife.”, acertified StrengthandConditioning specialistoncesummedupadiscussionbysaying,“Aswith(与···一样)allathleticendeavors,eswithbothgreatreward(奖赏)%ofrunnerswillsufferaninjurythatcausesthemtotaketimeoffrunning—eachy