Dogs have been considered people’s best friend for thousands of years, but never has the relationship between humans and their canine companions been as important as it is in today’s world. Jen Golbeck, the “internet’s dog mom” and science writer Stacey Colino, authors of The Purest Bond: Understanding the Human–Canine Connection, reveal the benefits our dogs can have on our physical, emotional, cognitive, and social well-being, often without our realizing it.