Comparedtopeoplewithbadattitudes，peoplewhoarecheerfulandrelaxedarelesslikelytosufferfromcolds，accordingtoanewstudy.“It’spossiblethatbeingupbeathelpsthebodyfightillnesses，”saysSheldonCohen，thestudy’sleadresearcherfromCarnegieMellonUniversity(CMU)inPittsburgh.
Inaprevious（先前的）study，Cohenandhiscolleaguesputcoldcausingvirusesintothenosesof334healthyadults.Peoplewhotendedtobecheerfulandlivelywereleastlikelytodevelopsniffles，coughs，andothercoldsymptoms.Peoplewhoshowedpositivefeelingswerealsolesslikelytomentionsymptomstotheirdoctors，evenwhenmedicaltestsdetectedthosesymptoms.
Thosefindingswereinteresting，buttheydidn’tprovethataperson’sattitudeaffectswhetherheorshegetssick.Instead，itwasstillpossiblethataperson’sunderlyingpersonalityiswhatmatters.Evidencesuggests，forinstance，thatcertainpeoplearenaturallymorelikelytobeoutgoingandoptimistic，withhighselfesteemandasenseofcontroloverlife.Thiswouldmeanthatwhoweare，nothowwefeel，ultimatelydecidesourchancesofcatchingcolds.
Tofigureoutwhichmatteredmore(personalityoremotions)，theCMUteaminterviewed193healthyadults.Theresearcherstalkedtoeachpersonoverthephoneeveryeveningfor2weeks.Attheendoftheinterviewingperiod，peoplegotnosedropsthatcontainedeithercoldorfluviruses.Then，eachpersonstayedinanisolatedroomfor5or6days.Theresultsshowedthateveryoneinthestudywasequallylikelytogetinfected.Theirsymptoms，however，differeddependingonthetypesofemotionsthattheyhadreportedovertheprevious2weeks.Amongthosewhoreportedgoodmoodsandhadbeeninfectedwiththefluvirus，forexample28percentdevelopedcoughsandstuffynoses.Ontheotherhand，thosesymptomsstruck41percentofpeoplewhohadbeenlessupbeat.
【小题1】
Whatwouldbethebesttitleforthepassage?
A．SmilesTurnawayColdsB．AnInterestingWaytoBeatColdsC．BeOutgoingandOptimistictoFightColdsD．WhatMattersMore，PersonalityorEmotions?【小题2】
Inthepreviousstudy，peopl
