Heat stroke is a life-threatening emergency in dogs that is almost entirely preventable, and owner education reduces the thousands of avoidable deaths annually.
Heat stroke causes preventable deaths in thousands of dogs annually from situations that are entirely within owner control. Leaving a dog in a car is the most dramatic cause — temperatures that would kill a dog in minutes are reached in ordinary summer conditions that owners may not perceive as extreme. Exercise in hot conditions is a more diffuse but equally significant welfare risk, particularly for brachycephalic breeds whose physiological cooling limitations are often underestimated by owners attracted to these dogs for their appearance. Prevention requires owner understanding of dog physiology — that they cannot cool themselves the way humans do — and appropriate behavioral adaptation including exercise timing, never leaving dogs in vehicles, and recognizing early warning signs.