Petting other people's dogs, even briefly, can boost your health

Children pet U.S. Park Police K-9 dog "Jersey" after a program where students from Watkins Elementary School in Washington, recited Martin Luther King, Jr.'s 1963 "I Have a Dream," speech on the steps of the Lincoln Memorial in Washington, Friday, Jan. 15, 2016 in Washington. (AP Photo/Alex Brandon)

What’s four-legged, furry and often serves up a quick little mood boost?

That’s right, a dog. It turns out even short, friendly interactions with canines can be good for our health.

I started pondering the power of dogs during one of my daily strolls around my neighborhood. Almost invariably, I’ll run into at least one person walking their dog. If I get the OK to pet the pooch, it’s a joyous moment of cooing and sloppy kisses.