Most animals do it. You’ve been doing it since before you were even born. And it’s quite likely looking at these photos has made you do it now. Yawning. But why do we yawn and why is yawning so contagious?
When was the last time you were alone with your thoughts for more than a moment or two? Did you enjoy the peace and quiet? Or did you desperately seek distraction? New research suggests many of us will go to great lengths to avoid simply having to think to ourselves.