医学常识英语浏览.docx

医学常识英语浏览医学常识英语浏览下面学习啦我为大家带来医学常识英语浏览，欢迎大家学习!医学常识英语浏览：防止晒伤Asthespringtimetemperaturesreplacethedamp,chillyairofthewinter,runnershittheroadwithaGeorgeHarrison-esquepassion:Herecomesthesun,dudududu.ItsallrightButbeforekissingthelong,cold,lonelywintergoodbye,rememberthatthesunsraysarentalwaysallright.Forexample,sunexposuretapsthebodysabilitytocoolitselfduringarun.Whenthishappens,energypreviouslydevotedtomaintainingthebodysstaminaisneededtocombattheadditionalheatfromthesunsrays.Thisquicklydepletesthebodysenergystoresandreducesperformance.Buttherearesimpleandeffectivewaystopreventsuchsetbacks.Forstarters,savesunbathingforpoolside.Theeasiestwaytobattlethesunspoundingraysistothinkintermsofreflection,notabsorption.Forclothing,chooselightcolorstoreflectthesunlight.Wearalight-coloredhat.Manysporting-goodsstoreshavelight-weight,breathablehatsthatallowexcessheattoescapefromtheheadwhileprovidingprotectionfromthesun.Sunglassesareamust.Squintingespeciallyoverlongperiodsnotonlycausestensioninthehead,itforcesthebodytoexpendenergy.Inaddition,open-eyeexposuretoexcessivesunlightcanleadtovariouseyeconditionsandpossiblymaculardegeneration.Withthejurystilloutoncausesofthisdisorder,itsbettertobesafethansorry.Finally,wearsunblockandremember,itsdifferentfromsunscreen.TheAmericanMelanomaFoundationbestdescribesthedifference:Chemicalsunscreensarecosmeticinnature,actingasfiltersandabsorbingthesunsultravioletrays.Physicalsunscreens(sunblocks)containingredientssuchastitaniumoxideorzincoxidethatphysicallyblockultravioletradiation.Whilesunblockisnotcosmeticallyappealingtomany,especiallyifawhitenoseisconsideredunattractive,itsbenefitwhileyourunisinvaluable.Sunblockreflectsthesunsultravioletraysthesamewaylightclothingdoes,anditdoesntallowtheskintoabsorbtheheatassociatedwiththoserays.Thegoalisntafashionablelookontheroad,itsanunhinderedworkout,regardlessoftheheatlevel.Thesetipsmightmakethathotrunalittlemorehearableandmuchsafer.医学常识英语浏览：跑掉高血压TheNationalHeart,LungandBloodInstituteattheNationalInstitutesofHealthmovedabout45millionAmericansclosertohighbloodpressurelastmonth.Theinstitutere-evaluatedsystolicanddiastolicbloodpressurenumbersandmovedsomenormalbloodpressuretotalsintoaprehypertensioncategory.AsIvestatedmanytimesandlikelywillagainIhavenoformalmedicaltraining.Everyoneshouldhavehisbloodpressurecheckedregularlyandfollowadoctorsadvice.Ifyourpressureishigh,dontpanic.Hittheroadandreducethosenumbers.Typically,highbloodpressureisanysystolicreadingabove139(topnumber)oranydiastolicreadingabove89(bottomnumber).Prehypertension,however,isabloodpressureofatleast119over79,butbelowthelevelslistedabove.Ifyouveworriedaboutyourbloodpressure,runningcanhelpinmanyways,butIbelievetwospecificareasareparamount.Thefirstiscombatingstress.Mostinmilitaryknowstress,fromlife-threateningdutytomobilizationandfamilyresponsibilities.Anelevatedstresslevelconstrictsbloodvessels,upsetsbloodflowandrequiresthehearttoworkovertime.However,aregularrunningregimenforcesthemindtofocusonendurance,breathingandtheexerciseitself.Thoughtsandworriesthatcausestressandconstrictbloodvesselsfallaway.Bloodflowimproves,andtheheartsefficiencyincreases.Runningalsoincreasestheamountofoxygenintheblood.TheNationalRunnersHealthStudy,aBerkeley,Calif.,researchlab,examinedabout8,000malerunnersandabout2,000femalerunnersandfoundthatbloodpressureinfasterrunnersislowerthanthatinslowerrunners.InananalysisofthestudybyJefferyKahnattheBerkeleylab,fastermalerunnerswere13timesmorelikelytolowersystolicpressureandnearlythreetimesmorelikelytolowerdiastolicpressure.Fasterwomenshoweda5.7timesgreaterchanceofdroppingsystolicpressure.Runninghelpsfighthighbloodpressurebypromotingdeepbreathingduringtheworkout,whichhelpsreduceoverallbloodpressure.Theprocessissimple.Thedeepereachbreath,themoreoxygenentersthebloodstreamagainmovingmoreoxygenwitheachheartbeatandrelievingthestrainontheheart.Withthestress-relievingeffectanddeepbreathing,afrequent-runningregimenshouldkeeprisingbloodpressureatbayandlowerpressureovertime.Atthesametimeandascorrectastheheart-institutestudymightbegettingriledbynumbersthatyesterdaywerenormalandtodayareconsideredprehypertensiveiscounterproductive.Imnowintheprehypertensioncategory,andIvebeensofor20years,soImgoingtokeeprunningandnotworryaboutit.Myfirsttriptothegymafterthewarstartedwasanattempttoreducethestressthatwasbuildingandoverwhelmingmethroughtheweek.So,beingabigfanofspinningindoorbikingIdecidedtotakeaseatintheclassatmygym.Fiveminutesintothewarm-up,Ifeltthetensioninmyheadslipaway.Surroundedbyfellowspinjunkies,thetalkwaslively.医学常识英语浏览下面学习啦我为大家带来医学常识英语浏览，欢迎大家学习!医学常识英语浏览：防止晒伤Asthespringtimetemperaturesreplacethedamp,chillyairofthewinter,runnershittheroadwithaGeorgeHarrison-esquepassion:He推荐度：