Stress, PsychologicalHeart RateMathematical ConceptsForearmSympathetic Nervous SystemBlood PressurePlethysmographyCardiovascular SystemMental ProcessesVascular ResistanceVasodilationEpinephrineHyperemiaHemodynamicsRegional Blood FlowPeroneal NerveNitrogen RadioisotopesPsychological TestsExercise TestNorepinephrineAutonomic Nervous SystemMyocardial IschemiaHydrocortisoneArrhythmia, SinusVasomotor SystemArousalSalivaHead-Down TiltBlood Flow VelocityControl GroupsWeightlessness SimulationMuscle, SkeletalRestBlood VesselsPrehypertensionLegCross-Over StudiesLower Body Negative PressureStress, PhysiologicalTakotsubo CardiomyopathyRespiratory RateHypertensionElectrocardiography, AmbulatoryRadionuclide AngiographyHyperventilationomega-N-MethylarginineBaroreflexPhysical ExertionSpace FlightSupine PositionCardiac OutputGanglionic BlockersCatecholaminesAngiocardiographyDouble-Blind MethodElectrocardiographyHeat Stress DisordersVasoconstrictionGated Blood-Pool ImagingFinlandBlood Pressure DeterminationCold TemperatureAnalysis of VarianceTime FactorsCoronary DiseaseManometryAdrenergic beta-AntagonistsVasodilator AgentsNitroglycerinExerciseStroke VolumeFish OilsCoronary Artery DiseaseEndothelium, VascularRisk FactorsVentricular Function, LeftReference ValuesCoronary CirculationBrachial ArteryPerceptionChest PainSex CharacteristicsJapanProspective StudiesAmmoniaSex FactorsRenal CirculationCoronary VesselsDefibrillators, ImplantableNitric OxideLipidsQuestionnairesCerebrovascular CirculationObesityCase-Control StudiesCoronary AngiographyEchocardiographyBody Mass IndexCross-Sectional StudiesBlood Glucose