The Evolution of Gratitude

How did gratitude evolve? Researchers are starting to trace this common human emotion all the way back to primate behavior.

This Van Delivers Human Kindness

Ever noticed the bathroom cleaners at the airport and thought, “Wow, I bet that job sucks”? Maybe you’ve felt pangs of guilt for leaving that towel on the ground after missing the trash can. Perhaps you’ve smiled at one of them as if to say “Thank you.” But I bet you haven’t given each one of them a candy bar and a thank-you note.