It's difficult for dogs to regulate their own temperature when they get too hot, as they can't sweat to cool off in the same way that humans do. Instead, panting is their main self-cooling mechanism, but it actually isn't a particularly effective method of reducing body temperature. Heat stroke in dogs is often fatal, which is why it's important not to allow your dog to overheat in hot weather. A cooling pad can help your four-legged friend cool down her core temperature, however, which is why we'd highly recommend all dog owners have one.