Instead, many of them spend their lives in small, boring backyards. To burn off all that natural energy, they're busy barking, digging and chewing. If you're thinking of getting a dog, think very seriously about what breed or mix you want and whether you can provide an active dog with the exercise he needs. If you can't honestly say that your dog will get 30 minutes of heart-thumping aerobic exercise at least three to four days a week - daily is better - then you really ought to reconsider those breeds and mixes.
Fortunately, there are alternatives. All dogs love and need their exercise, but not all dogs will misbehave if they don't get a ton of it. For large dogs, consider adopting a retired racing greyhound. Many of the pug-nosed breeds are also touted for their couch-potato ways, but beware: that's because they're often born with compromised respiratory systems, with health problems to match. Many small breeds are easy in the exercise department, and they're well worth considering because it's not as difficult to exercise a small dog with short legs. A Yorkie, pug or corgi can get good exercise in a small yard or on a brisk walk, but remember that even short legs won't get you off the hook with the most active and tough-minded breeds of terrier. These dogs need as much regular cardio as their bigger, more powerful relatives.
What if you already have an active breed of dog? I know the answer to this one, having shared my life with retrievers for almost 20 years. There's always a tennis ball in my truck, and I know all the safe and legal places to throw it, especially those that involve bodies of water. So get out that leash. Find that tennis ball. Scope out the nearest pond. And make some time to get your dog moving a half-hour a day, every day. Your dog will be happier and healthier, and so will you. As for those behavior problems, you'll find they're easier to fix if your dog isn't frantically looking for a place to direct all that energy.
Pet Connection is produced by a team of pet-care experts headed by "Good Morning America" and "The Dr. Oz Show" veterinarian Dr. Marty Becker and award-winning journalist Gina Spadafori. The two are affiliated with Vetstreet.com and also the authors of many best-selling pet-care books. Dr. Becker can also be found at Facebook.com/DrMartyBecker or on Twitter at DrMartyBecker.