Why does my dog pant all the time?

First of all, look at where you live and what kind of coat your dog has. If you have a dog who is equipped to handle long periods in cold temps, then they mgiht just be too hot in many parts of the country. If you suspect this is the case, make sure you dog has some cool places to get out of the heat. If you have a dog bred for cold weather, let them enjoy some of that snowy wintery wonderland. This is probably best case scenario. Plus, dogs with flat faces have a tougher time breathing, especially in the heat and seem to pant more as well. Second, is the dog overweight? Just like with people, overweight dogs get tired and hot much more quickly. If this is the case, visit the vet and cut down on your dog's food intake. Start making some healthy subs for some of the treats your dog eats. You can also start to increase exercise a little each day. This is in the dog's best interest, as overweight dogs are much more prone to joint issues and can suffer from heart problems too. Third and most serious, it could be a medical issue. Perhaps the dog already has a thyroid or heart issue. Take the dog to the vet, have them tested for everything and you may have to commit to putting the dog on meds to help them live a better life.