高考英语外刊阅读天天练科技说明文阅读理解专题.pdfVIP

高考英语外刊阅读天天练：科技说明文阅读理解专题

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Womenwithchronicfatiguesyndrome(CFS)tendtohavemoresymptomsthanmenandaremorelikelytodevelop

increasinglyseveresymptomsovertime,accordingtoinitialresultsfromamajorstudy.

ItisalreadyknownthatwomenareathigherriskofCFS,alsoknownasmyalgicencephalomyelitis(ME),andthelatest

study,calledDecodeME,providesnewinsightsintohowtheirexperiencediffersfrommen.Thestudyfoundthatwomenwho

haveME/CFSformorethan10yearsaremorelikelytoexperienceincreasinglyseveresymptomsastheyage.

ME/CFSisestimatedtoaffectmorethan250,000peopleintheUK,ofallagesandfromallsocialandeconomic

backgrounds.Akeyfeature,calledpost-exertionalmalaise,isadramaticworseningofsymptomsafterminorphysicaleffort.

Othersymptomsincludepain,brainfogandextremefatiguethatdoesnotimprovewithrest.

ScientistsarestillworkingtounderstandthecausesofME/CFS,althoughthereissomeevidencethatinfectionscantrigger

thecondition,whilearecentstudysuggestedthataproteinmaydisruptcells’abilitytogenerateenergy.Thereiscurrentlyno

diagnostictestorcureanddoctorscontinuetobedividedonthebestwaytohelppatientsrecoverormanagesymptoms.

Thelatestresearchanalysedanonymoussurveyquestionnairesfrommorethan17,000peoplewithME/CFS.Women

reported,onaverage,moresymptomsthanmen:42,comparedwith36.Themostcommonofthesesymptomswerebrainfog

(atermcommonlyusedtodescribethecognitiveimpairmentexperiencedbyparticipants),unrefreshingsleepandmuscle

pain.ExpertsalsoidentifiedthatbeingawomanandhavingME/CFSformorethan10yearsincreasedtheriskofsevere

symptoms,whichincreaseinintensityaspeopleage.

SonyaChowdhury,thechiefexecutiveofActionforMEandchairofthemanagementgroupofthestudy,said