Autonomic Nervous System DiseasesAutonomic Nervous SystemHeart RateDiabetic NeuropathiesValsalva ManeuverHypotension, OrthostaticAdie SyndromeMultiple System AtrophyShy-Drager SyndromeVagus Nerve DiseasesBaroreflexTilt-Table TestPrimary DysautonomiasReflex, AbnormalPseudoephedrineElectrocardiography, AmbulatoryDiagnostic Techniques, NeurologicalBlood PressurePostural Orthostatic Tachycardia SyndromeTonic PupilCardiovascular SystemDysautonomia, FamilialPosture3-IodobenzylguanidinePain Insensitivity, CongenitalArrhythmia, SinusPolyneuropathiesHeartElectrocardiographyParasympathetic Nervous SystemGuillain-Barre SyndromeLewy Body DiseaseDizzinessNeuroleptic Malignant SyndromeIodobenzenesHypotensionParkinson DiseaseSympathetic Nervous SystemFludrocortisoneSweatingGalvanic Skin ResponseTachycardiaErectile DysfunctionVentricular Dysfunction, LeftPupilReflexCase-Control StudiesPolyradiculoneuropathyVagus NerveBradycardiaSupine PositionArrhythmias, CardiacAtaxiaDiabetes Mellitus, Type 1Time FactorsSyndromeNeural ConductionSeverity of Illness IndexDisease Models, AnimalCardiovascular DiseasesRespirationBlood Pressure Monitoring, AmbulatoryNeurologic ExaminationNorepinephrineCircadian RhythmPeripheral Nervous System DiseasesSjogren's SyndromeIodine RadioisotopesStatistics, NonparametricAnalysis of VarianceDiabetes Mellitus, Type 2Prospective StudiesRisk FactorsHemodynamicsHypertensionFollow-Up StudiesVentricular DysfunctionCross-Sectional StudiesExercise TestSexual Dysfunction, PhysiologicalTreatment OutcomeSexual Dysfunctions, PsychologicalBlood GlucoseBrainEndothelium, VascularRetrospective StudiesVentricular Dysfunction, RightOxidative Stress