阅读Passage1Expertssuggestthatteensget60minutesormoreofphysicalactivitieseachday
Herearesomeofreasons:Exerciseisgoodforeverypartofthebody,includingthemind
Exercisingcausesthebodytoproducechemicalsthatcanhelpapersontofeelmorepeacefulandhappy
_____________________Itcanalsohelpsomepeoplewhoaresadandhavelow(自尊)
Also,exercisecangivepeoplearealsenseofachievementandprideathavingachievedacertaingoal-likebreakinganoldrecordinthe100-meterrace
___________________Peoplewhoexerciseburnmorecaloriesandlookhealthierthanthosewhodon't
Infact,exerciseisoneofthemostimportantpartsofkeepingyourbodyatahealthyweight
Exercisehelpspeoplegetalowerriskofsomediseases
Exercisingdecreases(减少)aperson'sriskofdevelopingcertaindiseases
Thesediseases,3
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Arebecomingmoreandmorecommoninteens
Exercisecan