【RhythmofLifeChoosingtherighttimetosleepthecorrectmomenttomakedecisionsthebesthourtoeat—andevengointohospital—couldbeyourkeytoperfecthealth.Centuriesaftermandiscoveredtherhythms(节奏、韵律)ofthe】

　　RhythmofLife

　　Choosingtherighttimetosleepthecorrectmomenttomakedecisionsthebesthourtoeat—andevengointohospital—couldbeyourkeytoperfecthealth.

　　Centuriesaftermandiscoveredtherhythms(节奏、韵律)oftheplanetsandthecyclesofcropsscientistshavelearnedthatwetoolivebypreciserhythmsthatgoverneverythingfromourbasicbodilyfunctionstomentalskills.Manisaprisoneroftime.

　　Butit’snotjusttheexpertswhoareswitchingontothewayourbodieswork. 71 PrinceCharlesconsultsachartwhichtellshimwhenhewillbeathispeakonaphysicalemotionalandintellectuallevel.BoxerFrankBrunoisanotherwhochartshisbio-rhythmstoplanforbigfights.

　　72 Sleepbloodpressurehormonelevelsandheartbeatallfollowtheirownclockswhichmaybearonlyslightrelationtoourman-made24-hourcycle.

　　Researchshowsthatinlaboratoryexperimentswhensocialsignalsandmostimportantlylightindicatorssuchasdawnaretakenawaypeoplelosetouchwiththe24-hourclockandsleepingpatternschange.Temperatureandheartbeatcycleslengthenandsettleinto“days”lastingabout25hours.

　　Intherealworldlightanddarkkeepadjustinginternalclocktothe24-hourday. Butthebestindicatorofperformanceisbodytemperature.Asitfallsfroma10p.m.highof37.2℃toapre-dawnlowof36.1℃mentalfunctionsfalltoo. 73

　　ThemostfamousexampleisthenuclearaccidentatThreeMileIslandintheUS.Thethreeoperatorsinthecontrolroomworkedalternating(交替的)weeksofdayeveningandnightshifts. 74 Investigatorsbelievethiscausedtheworkerstooverlookawarninglightandfailtocloseanopenvalve.

　　Findingthesecretofwhatmakesustickhaslongfascinatedscientistsandworkdoneoverthelastdecadehasyieldedimportantclues. 75 Forexamplethetimeweeatmaybeimportantifwewanttomaximizeintellectualorsportingperformance.Thereisalreadyevidencesuggestingthatthetimewhenmedicineisgiventopatientsaffectshowwellitworks.

　　A. Therhythmoflifeisaslightbeat.

　　B. Theaimistohelpusbecomemoreefficient(高效的).

　　C. JennyHopeclaimstohavetestedtheirbodyclockstothelimit.

　　D. Thisis