It's something we do every day, multiple times, and we often "catch" it from other people doing it.
Here we look into the physiology of yawning, and why it not only helps our brains, but also is a sign of empathy and, yes, increased alertness.
Why Is Yawning Contagious?
The Yawn-O-Meter (How Long Can You Last?)
Why Do We Yawn?
Can You Watch This Without Yawning?
Comments
0 comment