Contagious yawning refers to the tendency of individuals to yawn after seeing, hearing, or even thinking about someone else yawning. About 40% to 60% of people exhibit contagious yawning when exposed ...

You know the feeling. It’s impossible to resist. You just need to yawn. A yawn consists of an extended gaping of the mouth followed by a more rapid closure. In mammals and birds, a long intake of ...

Simply looking at the word can stimulate a yawn. I’m actually yawning while typing this piece. Interestingly, all vertebrates — a living being with a spinal column — yawn. Vertebrates include mammals, ...

It is highly contagious and very common. You can catch it at any time, and there may be nothing you can do to prevent it. Sound scary? Fortunately, it, yawning, is not too harmful...unless you are on ...