Before he started working for The Verge, Jay Peters submitted the proposals for the yawning face and waffle emoji that became a reality in Emoji 12.0. Here’s how he did it — submitting ...

Why Do People Yawn More When They Feel Tired A tired brain is an inefficient one, and its energy levels go down. Thus, the body might resort to yawning as a weapon against fatigue.

The average adult yawns about 20 times a day. But why? Surely we can’t all be that tired. The truth is, the science behind yawning is more complex than just a few hours too little sleep. Even ...

Merely thinking about or seeing someone yawn can make you yawn (you’re probably yawning right now). Most people yawn because they’re tired, but it can also happen unexpectedly and without any ...