Scientists believe that their germs can be useful for people.
It is known that living with a dog is healthy for people in many ways. But now scientists have concluded that having a quadruped friend has other benefits.
They believe that the bacteria found in the intestines of dogs, probiotic effect on people.
To test this theory, researchers at the University of Arizona have recruited volunteers to explore the effects.
Human digestive system is home to more than 500 species of bacteria, referred to as "good" and "bad". Probiotics, bacteria are often called "good" which help in maintaining healthy stomach, digestive and immune system support. Foods like yogurt or food supplements help promote probiotics.
Previous studies, writes Annabel, have shown that dogs and their owners share more or less the same intestinal bacteria over time.
It is also discovered that living with a dog, strengthens the immune system of children by reducing the risk of diseases, including asthma and allergies.