2. Dogs may be able to smell disease
Research undertaken at a German hospital indicates that dogs have this inherent ability to recognize the odor of a certain number of compounds, capable of showing that your body might not be performing as it is expected. Hence, if your canine chum is behaving strange, then there might be no problem with them, but the problem could possibly be with you. This means that dogs can actually sense some disease. In fact, some dogs can tell when someone is going to have a seizure and will act oddly just before this happens.