托业英语中级阅读学习资料托业英语中级阅读精品学习资料Learninganylanguagetakesalotofeffort.butdon'tgiveup.以下是小编为大家搜索整理的托业英语中级阅读精品学习资料，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!Owningacatcanreducetheriskofheartattacksandstrokesbymorethanathird,researchershavefound.Scientistssaidthathavingacathelpedtorelievestressandanxiety,whichisknowntohelpprotectagainstheartdiseasebyloweringbloodpressureandreducingtheheartrate.The10-yearstudylookedat4,435adultsagedbetween30and75,abouthalfofwhomownedacat.Thefindings,presentedatastrokeconferenceinAmerica,showedthat3.4percentofthecatownersdiedfromaheartattackover10years.Amongthegroupwhohadneverownedacattheratewas5.8percent.Catownersstillhadamuchreducedchanceofdevelopingstrokesorheartattackswhenresearcherstookaccountofotherfactorsknowntotriggerheartdisease,includinghighcholesterollevels,smokinganddiabetes.ProfAdnanQureshi,fromtheMinnesotaUniversity,whocarriedoutthestudy,saidhewassurprisedbythestrengthoftheeffectthatowningacatappearedtohave."Thelogicalexplanationmaybethatcatownershiprelievesstressandanxietyandsubsequentlyreducestheriskofheartdisease."Hebelievesonereasoncouldbethatstrokingthepetcouldcutthelevelofstress-relatedhormonesintheblood.Reducingstressisknowntohelpprotectagainstheartdiseasebyloweringbloodpressureandreducingtheheartrate.ButProfQureshiaddedthatthetypeofpersonwhoownedacatwasusuallyalreadyfairlystress-freeandatlowriskofheartdisease.研究人员发现，养猫能使患心脏病和中风的风险降低三分之一以上。科研人员称，养猫有助于缓解压力、减轻焦虑，而减轻压力可以降低血压和心律，因此有助于预防心脏病。研究人员对4435名年龄在30岁至75岁之间的成年人进行了为期十年的调查，其中有一半的`人养猫。研究结果显示，在这十年中，仅有3.4%的养猫人士死于心脏病，而从未养过猫的人死于心脏病的比例为5.8%。该结果在美国召开的一个中风研讨会上公布。研究人员还综合考虑了高胆固醇、吸烟和糖尿病等可能引发心脏病的其它一些因素，结果发现，养猫人士患中风或心脏病的几率还是要小很多。开展该研究的明尼苏达大学教授阿德南?库勒什说，他很惊讶养猫有这么大的好处。“合理的解释应该是，养猫能够缓解压力和焦虑，从而降低患心脏病的风险。”他认为其中一个原因是，爱抚小猫能够降低血液中的应激激素水平。而减轻压力则能够降低血压和心率，从而有助于预防心脏病。但库勒什教授说，喜欢养猫的人往往自身就没什么压力，患心脏病的几率也较小。