Thereisasaying,"Healthiswealth."Itmeansthatone,whohasgoodhealth,isthehappiestpersonthantherich.Because,ifarichpersonissickandcannotdigestwhatheeats,heisunhappyinlife.Hislifebecomesuselesstohim.Butahealthyperson,thoughpoor,livesabetterlife.Lifeisnoburdentohim.Lifehasitscharmforhim. 　　Whenahealthypersonworkshard,orwalksalongdistance,heisnottired.Heenjoyshisfood,andhasasoundsleepatnight.Arichpersonisenviousofhim. 　　Inordertomaintainagoodhealth,apersonhastotakepureandsimplefood.Hehastodosomekindofexercise,ortodosomesortofmanualworkregularly.Bythemovementofhislimbsandbody,hisfoodgetsdigestedeasily.Digestedfoodsuppliesnutritionandpurebloodtohisbody. 　　Healthisamatterofprideinhumanlife.Forhealthculture,nowadays,therearemanyways.Moderngymnasiumprovidesvariouskindsofexercises.Yogapracticeisalsoveryuseful.Besideswalking,running,swimming,etc.arealsogoodexercises.