https://www.psychologytoday.com/blog...-your-lifespan
Trisha McNair, MD, who has extensively studied the relationship between lifestyle and longevity estimates that dog ownership adds about two years to your life.
And science backs her up. The American Heart Association has found that dog ownership lowers the incidence of cardiovascular disease and speeds recovery from heart attacks. Other research has shown that petting a dog lowers people’s heart rate and blood pressure.