The Labrador Retriever and the Afghan Hound are medium sized dogs that do require at least 45 minutes a day of exercise. Both breeds can easily become couch potatoes and obese, therefore, when the two breeds are mixed, their offspring can also easily become obese and lazy. Ensure that your dog is getting plenty of exercise to build muscle tone and keep his body healthy. Do not just leave him in the back yard to play by himself, he will not do so and may even become destructive. By getting out there with your dog and playing games or simply taking a walk around the neighborhood you are building a bond with your dog that will last a lifetime.