Cardiovascular Physiological PhenomenaDental Physiological PhenomenaDigestive System and Oral Physiological PhenomenaReproductive and Urinary Physiological PhenomenaVagus NerveMusculoskeletal and Neural Physiological PhenomenaCirculatory and Respiratory Physiological PhenomenaIntegumentary System Physiological PhenomenaSports Nutritional Physiological PhenomenaReproductive Physiological PhenomenaPhysiological PhenomenaElder Nutritional Physiological PhenomenaArrhythmia, SinusUrinary Tract Physiological PhenomenaHeart RateSomatotypesPropanthelineAutonomic Nervous SystemMusculoskeletal Physiological PhenomenaParasympathetic Nervous SystemVirus Physiological PhenomenaAutonomic PathwaysBradycardiaAtropineBaroreflexElectrocardiographyDigestive System Physiological PhenomenaHeartPressoreceptorsBlood Physiological PhenomenaBlood PressurePhenylephrinePropranololAdolescent Nutritional Physiological PhenomenaSympathetic Nervous SystemOcular Physiological PhenomenaRespirationDogsNervous System Physiological PhenomenaRespiratory Physiological PhenomenaCell Physiological PhenomenaSkin Physiological PhenomenaPrenatal Nutritional Physiological PhenomenaMuscle TonusPlant Physiological PhenomenaBacterial Physiological PhenomenaTime FactorsMaternal Nutritional Physiological PhenomenaChild Nutritional Physiological PhenomenaNutritional Physiological PhenomenaInfant Nutritional Physiological PhenomenaAcoustic StimulationRaynaud Disease