Todaysmokingisawidespreadhabitallovertheworld.Notonlytheold,theyouth,butalsomiddleschoolstudentshavebeenengagedinsmoking.Manyofthemthinkthatsmokingisasmartsymbol.However,smokingisharmfultoone'shealth.Itcontributesalotoflungcancer,fromwhichmanypeoplehavediedinthepastyears.Itcanalsocausemanyotherdiseases.Inaword,ifyousmoke,youdohaveamuchgreaterchanceoflosingyourhealth.Furthermore,scientificresearvhshowsthatsmokingisnotomlyharmfultosmokersthemselves,butalsoathreattopublichealth,especiallytowomenandchildren.Therefore,manycountriedhavemadelawsforbidingsmokerstosmokeinpublicplacessuchascinemas,stations,hospitals,andsoon.Giveupsmoking!Ifyoudon'tsnoke,don'tstart.Giveupsmokingforthesakeofyourhealth,forthesakeofyourfamily,andforthesakeofthehwholeworld.