Dogs are known to lower stress as people at Miami or Los Angeles international airports, which have recruited several furry friends to interact with waiting passengers, may have found out. The canines also teach their owners responsibility. Another great reason to have a dog, albeit selfish, is your health. Certain breeds can even make you a lot more physically active.Research has shown that dog owners are 54 percent more likely to reach the weekly recommended amount of exercise. Most dogs love to chase balls, squirrels and other small things, and don’t mind short walks, Dr. Clay Bernard, DVM, CVA, says. They love to be in nature and oftentimes it is not hard to activate that primary animal instinct.