Dear Doctor: The 7-year-old in our family has discovered yawns are "catching," and he just loves it when he can get his daddy to start yawning, too. Of course, now he wants to know why, but even after ...

This video, by vsauce, not only explains why yawning is contagious, but also lays out the physiology of yawning, reveals that you’re less likely to yawn when your brain is cool, and gives us some ...

Q I bought a 30-minute resistance-cord video. I really like it, but the weird thing is that at the beginning of my routine, I start yawning a great deal. At first I thought I was just tired, but it ...

Yawning, an act so simple yet intriguing, holds a peculiar secret—it's contagious not just between humans but between humans and dogs as well. In our book, The Purest Bond: Understanding the ...