Heat stroke kills hundreds of dogs annually, with cars and hot weather the primary risk factors that are entirely preventable through owner education.
Heat stroke is a medical emergency in which body temperature rises above 41 degrees Celsius, causing protein denaturation, organ failure, and death without rapid intervention. The simplest prevention is never leaving dogs in cars in warm weather. Brachycephalic breeds with compromised airways are most vulnerable because their ability to cool through panting is impaired. Recognizing early signs and providing rapid first aid including cooling with room-temperature water and immediate veterinary attention saves lives.