If you wish to see whether your dog is happy, you ought to take a good look at his mouth. When you own a dog that’s happy, the weight is evenly distributed and he is going to be relaxed. If your dog has experienced extreme weight reduction in a brief quantity of time, there may be a chance there’s a chemical imbalance due to clinical depression. Like humans, when dogs become depressed, they frequently sleep a whole lot more than they typically do. So if your dog seems to be down in the dumps, then your very first stop ought to be to the local veterinarian for a complete check-up. Generally speaking, most dogs aren’t aggressive without some type of provocation so you should find out what is causing this behavior.