This is something that isn’t exclusive to dogs. Even we, as humans, get affected by cold when it comes to winter. We tend to cough more, sneeze, and so on. So, for French bulldogs, it’ll be the same. It is important that you make a good habit of keeping them warm and maybe avoid the usual morning walk. Try to do it later when it is warmer to avoid any respiratory issues on them. Doing that will improve their health and keep them happy without exposing them to the cold of the season.