Stress, PhysiologicalHydrocortisoneStress, PsychologicalSalivaCorticosteroneHeat-Shock ProteinsHeat-Shock ResponseAdaptation, PhysiologicalHypothalamo-Hypophyseal SystemPituitary-Adrenal SystemHot TemperatureHSP70 Heat-Shock ProteinsHeart RateTime FactorsBehavior, AnimalGene Expression RegulationExerciseRNA, MessengerTranscription FactorsBiological MarkersAnalysis of VarianceTranscription, GeneticSignal TransductionBlood PressureMutationMolecular Sequence DataDNA-Binding Proteins