Dogs cannot regulate body temperature as effectively as humans during exercise, making heat-related illness a serious welfare risk. Understanding dog heat tolerance prevents preventable suffering and death.
Heatstroke in dogs is a preventable welfare emergency that causes significant suffering and death annually. The animals most at risk - brachycephalic breeds, overweight dogs, and dogs exercised in hot weather - often depend entirely on owner knowledge to protect them, as they will continue following and trying to exercise even when physiologically compromised. The welfare case for owner education about heat safety is compelling: simple behavioral changes (exercising in early morning or evening, carrying water, stopping exercise before dogs show distress) prevent the acute welfare emergency of heatstroke. The additional risk of hot cars is among the most preventable welfare emergencies - no situation justifies leaving dogs in parked cars in warm weather.