Stress, PsychologicalUrocortinsPsychoneuroimmunologyRestraint, PhysicalPhysiological ProcessesCorticosteroneHydrocortisoneAnxietyPituitary-Adrenal SystemHypothalamo-Hypophyseal SystemStress, PhysiologicalNeuroimmunomodulationSalivaVirtual Reality Exposure TherapyManifest Anxiety ScaleTelomere HomeostasisCorticotropin-Releasing HormoneGastrointestinal MotilityMasticatory Musclesbeta-EndorphinBereavementAdaptation, PsychologicalCoronaviridae InfectionsQuestionnairesHeart RateLife Change EventsAerophagyBacteria, AerobicCardiovascular SystemNeurosecretory Systems