Body TemperatureHypothermia, InducedHypothermiaBody Temperature RegulationOxygenTemperatureCold TemperatureHot TemperatureRewarmingSkin TemperatureOxygen ConsumptionFeverThermometersShiveringHibernationReactive Oxygen SpeciesTelemetryHypoxia-Ischemia, BrainThermographyTime FactorsHeart ArrestCircadian RhythmSciuridaeHeatingThermogenesisSweatingOxygen Inhalation TherapyCirculatory Arrest, Deep Hypothermia InducedEnergy MetabolismImmersionHumiditySeasonsHeat Stress DisordersThermometrySinglet OxygenHeart RateCarbon DioxideBrainRats, Sprague-DawleyMotor ActivityHyperthermia, InducedAntipyreticsRectumInjections, IntraventricularPreoptic AreaHydrogen-Ion ConcentrationAsphyxia NeonatorumRespirationBehavior, AnimalOxygen IsotopesPyrogensHypothalamusThermosensingCardiopulmonary ResuscitationBasal MetabolismCerebral VentriclesBrain IschemiaWaterIncubators, InfantAdaptation, PhysiologicalN-Methyl-3,4-methylenedioxyamphetamineKineticsAnoxiaPartial PressureHeat StrokeDisease Models, AnimalRats, WistarSleepDose-Response Relationship, DrugAnalysis of VarianceAdipose Tissue, BrownEatingThermodynamicsStress, PhysiologicalInfrared RaysComaBrain InjuriesThermoreceptorsCardiopulmonary BypassExtracorporeal CirculationAirCold-Shock ResponseAcclimatizationCold ClimateSwineAnesthesiaTransition TemperatureHeart Arrest, InducedThermal ConductivityBody WeightWakefulnessAsphyxiaModels, BiologicalClothingTreatment OutcomeEnvironment, ControlledBeluga WhaleAnimals, NewbornHypoxia, BrainLizards