52ºc, New York
5 quick facts about yawning that won't make you sleepy
Yawning is a part of everyday life, we do it quite a lot during the day and you don't even have to be tired to yawn.
I yawned twice while writing this little piece!
Here are a few facts you don't know about yawning - and why not count how many times you've yawned while reading this!
The average yawn lasts for six seconds and it is thought to be controlled by the hypothalamus of our brain.
Eleven weeks after conception, the fetus even yawned!
Yawning is contagious, and if you see someone yawning, there's a good chance you'll want to yawn too.
There are a few theories about why we yawn but don't really know which one is right, these theories are: lack of oxygen due to being unwell or breathing slower when tired.
There are opinions that yawning is like stretching, satisfied is finished.
Researchers propose that yawning is a way of cooling the brain.
One trial was done with two groups of people;
The results showed that people wearing warm towels over their heads yawned more than those wearing cold towels.
Are there any other theories out there?
Oh, and I yawned five times while writing this!
