Anyexerciseisgoodexercisebutwhenitcomestolosingweightit’shardtobeatrunning.Afterallrunningisoneofthemostefficientwaystoburncaloriesandgetfitwithouthavingtorestrictyourdiet. 31 Ifyou’renotarunneryetbutinterestedinlosingweightherearefourreasonsrunningcanbethebestexerciseforweightloss.

32 Whencomparingrunningwithwalkingthesamedistancestudiesfindthatrunningwillleadtogreaterweightlossmostlikelybecauseyourrestingenergyexpenditurestayselevated(高的)afteryourun.Inalong-termcomparisonstudyofrunnersandwalkerscaloriesburnedthroughrunningledto90%moreweightlossthancaloriesburnedthroughwalking.

Runningistime-efficient.Evenifthemyththatrunningamileandwalkingamileburnthesamenumberofcaloriesweretruerunningisaconsiderablyfasterwaytoburnthosecalories. 33

Runningisconvenient.Thoughmanyofushaveaccumulatedavastarsenal(武器，装备)ofGPSgadgetsandtechteesovertheyearslittleisactuallyrequiredtogorunning.Youcandoitalone.Youcandoitalmostanywhere. 34 Forthisreasonalonerunningisthebestworkoutforweightlossbecauseit’scheapandaccessibleandtherearefewerbarrierstomaintainingaroutineevenwhiletraveling.

Twowords:runner’shigh. 35 Fortunatelystudiessupportwhatmanyrunnershaveexperiencedonananecdotallevel—runningcanactuallygetyouhigh.Scientistshavefoundlinksbetweenmoderatetointenseexerciseandmorphine-likebrainchemicalswhichexplainstheoccasionalfloodofthrillthatrushesoveryouduringahardrun.Thathappysensationyouhadafteryourlastracemakesyouwanttogoforanotherrunright?

A.Cultivatethegoodhabitofrunning.

B.Runningworksevenwhenyou’reatrest.

C.Youwillneversticktoahabitifyoudon’tlikeit.

D.Thefirstruleofexercisingforweightlossisthatifyoudon’tenjoyityouwon’tstickwithit.

E.Youdon’tneedanyequipmentbeyondapairofrunningshoes.

F.Ifyou’realreadyarunnerkeepon.

G.Mostpeoplecanruntwoorthreetimesasfarastheycanwalkinagivenamountoftime.