Body TemperatureHypothermia, InducedHypothermiaBody Temperature RegulationTemperatureCold TemperatureHot TemperatureRewarmingSkin TemperatureFeverThermometersShiveringHibernationTelemetryNeurologic ExaminationNervous System DiseasesHypoxia-Ischemia, BrainHeart ArrestThermographyTime FactorsCircadian RhythmSciuridaeHeatingBrainThermogenesisCirculatory Arrest, Deep Hypothermia InducedSweatingBrain IschemiaSeasonsImmersionThermometryHumidityHeat Stress DisordersMotor ActivityAsphyxia NeonatorumHyperthermia, InducedAntipyreticsEnergy MetabolismBehavior, AnimalRats, Sprague-DawleyInjections, IntraventricularComaPreoptic AreaRectumHeart RateTreatment OutcomeCerebral VentriclesOxygen ConsumptionPyrogensBrain InjuriesHypothalamusThermosensingDisease Models, AnimalCardiopulmonary ResuscitationCardiopulmonary BypassN-Methyl-3,4-methylenedioxyamphetamineIncubators, InfantBasal MetabolismElectroencephalographyHydrogen-Ion ConcentrationHeart Arrest, InducedHeat StrokeCarbon DioxideInfant, NewbornAnalysis of VarianceRespirationSleepAsphyxiaWaterAdipose Tissue, BrownExtracorporeal CirculationRats, WistarDose-Response Relationship, DrugThermoreceptorsBrain DiseasesAdaptation, PhysiologicalEatingInfrared RaysCold-Shock ResponseThermodynamicsTransition TemperatureIntraoperative ComplicationsThermal ConductivityCold ClimateHypoxia, BrainAnesthesiaStress, PhysiologicalResuscitationBody WeightSwineClothingBeluga WhaleKineticsStrokeCerebrovascular CirculationTympanic MembraneWakefulnessClimateLizardsEar Canal