The21centeryhassadlywitnessedthedeteriorationofthehealthofpeoplenowadays.Asthecompetitionforjobsbecomesmorefierce,peoplealwaysfeelexcessivetenseandmostofthemaresubhealthy. 　　Thereisasomewhatironicalsayingthat"Intheyouthhood,wearefightingforwealthwiththesacrirficeofhealth,butwhenitcomestotheveteranstage,weareeagertobuyhealthwithmoneywhichseemsquitelate."Apparenty,theonewhosaidthisholdacriticalviewtowardsthebehaviorthattosacrificehealthforwealth.Icannotagreemorewithhim.Thereareseveralreasonsasfollowing.Firstandforemost,healthisthemostvaluablethingthatnothingcantaketheplaceofit.Wecandoanythingwithahealtybodybutnothingcanbedonewithouthealth.Sacondly,wecanworkmoreefficientlyifweareingoodhealth.Lastbutnotleast,Onlywithagoodhealthcanweliveahappylife.