Bulldogs have short noses and flat faces, making it harder for them to regulate their body temperature through panting. This makes them more prone to overheating.
Like Bulldogs, Pugs also have brachycephalic (short-nosed) faces, which makes it difficult for them to cool down effectively in hot weather.
This breed shares the brachycephalic characteristics of Bulldogs and Pugs, making them highly susceptible to heatstroke.
Boxers are muscular dogs with short coats, which can lead to quicker overheating when exposed to high temperatures.
These dogs have long, flowing coats that can trap heat, and they may not tolerate high temperatures well.
With their long, thick fur, Shih Tzus are prone to overheating, especially in hot and humid weather.
Chow Chows have a dense double coat that can make them heat-sensitive, and their thick fur can trap heat.
Bullmastiffs are a large breed with a short coat. While they are generally more tolerant of heat than some other brachycephalic breeds, they can still be at risk, especially in extreme heat.