5、uchisnotwelcome.Butevenifwedon’tlikebeingtouched,asmilecanmakeusfeelbetter.Smilingincreasesbloodflowandstartstheproductionof“happybrain”chemicals.Solet’shaveabigsmileanddon’tforgettokeepintouch. 29.WhichofthefollowingisNOTtrue? A.Peoplemayworkharderbecauseofbodycontact. B.