A new study shows that walking your dog is good for your health. Here is a YouTube video summarizing the findings of the study:
Let's not forget that walking your dog is also very good for your dog. According to PetMD, some benefits include weight control, keeping your dog limber, controlling destructive behaviors and hyperactivity, and of course building a bond between you and your pet.
If you have a cat however, it might be best to just let the cat walk you as demonstrated in this YouTube video:
I do have a siberian husky and i walk him twice a day since 3 month and i feel better now i can walk or run.