Stress, PsychologicalAcute DiseaseHeart RatePsychoneuroimmunologyRestraint, PhysicalPhysiological ProcessesCorticosteroneHydrocortisoneAnxietyPituitary-Adrenal SystemHypothalamo-Hypophyseal SystemStress, PhysiologicalNeuroimmunomodulationSalivaVirtual Reality Exposure TherapyManifest Anxiety ScaleTelomere HomeostasisCorticotropin-Releasing HormoneGastrointestinal MotilityMasticatory Musclesbeta-EndorphinBereavementAdaptation, PsychologicalCoronaviridae InfectionsQuestionnairesLife Change EventsAerophagyBacteria, AerobicUrocortinsCardiovascular SystemNeurosecretory SystemsPersonnel ManagementDepressionReceptors, Corticotropin-Releasing HormonePersonalityElectroshockDisease Susceptibility