” Dogs relieve stress. According to a study conducted in the 1980s by Aaron Katcher of the University of Pennsylvania and Alan Beck of Purdue, playing with a dog or even just petting a familiar dog lowers blood pressure and heart rate, slows breathing, and relaxes muscle tension almost immediately. Dogs are good for your heart. Literally. The “American Journal of Cardiology” published and researched. Dogs make us happy. In fact, even just looking at a dog can make you happier. A study in Japan in 2009 found that just staring into your dog’s eyes raises your level of oxytocin, also known as the “love hormone. Dogs make us want to take care of them. There must be a reason why so many people become virtually addicted to dog videos, and why puppies are so irresistible. ”  

American Kennel Club AKC.org