With the safety and health of dogs in mind, dog owners can consider these tips for walking dogs, courtesy of the AVMA. DOGS WITH BRACHYCEPHALYBe especially careful with brachycephalic dogs. Some notable examples of brachycephalic dog breeds include Boston terriers, bullmastiffs, chihuahuas, English bulldogs, French bulldogs, pugs, and shih-tzus. Brachycephalic dogs tend to have a more difficult time walking in hot weather, and the AVMA recommends dog owners stop frequently to allow these dogs to rest on hot days. Small dogs, dogs that have short coats, dogs that lack body fat, and even some brachycephalic dogs may not fare well when temperatures drop.