...in many ways. So if your kids have been bugging you to get a dog, go for it. Research has found that dogs can help you stay in shape,(all that walking) also can help lower your risk of obesity, give you a better rate of survival after a heart attack, also you'll have fewer visits to the doctor and even have better social skills.  As for your kids, teens with dogs are more physically active and deal with allergies better.

I have two dogs. Does that mean I get double the benefits? 

More here.