Why do we yawn?

What exactly is Yawning? Why do we yawn? Isn’t GOD’s creation so interesting, with every tiny detail of it!

I have been wondering about wondering recently… I've been doing a lot of it recently!... guess where it happens mostly? At work of course! I just farted too, but I never wonder why we fart, because I think that is obvious.. I feel sorry for the person that just came in the room!

So how is yawning different to normal breathing? Since it’s my first day of relieving in the respiratory clinic at Greenlane Hospital then perhaps I should ask one of the sleep specialists or nurses.

Ok I know that science says the brain needs oxygen (O2) and when we’re tired we don’t breath enough Oxygen in so we yawn to inhale more oxygen and stay awake… yes ok, makes sense maybe… but what is Oxygen anyway?? What is air?? What makes it such a vital thing in order for our brains to live and work??

My point actually is that yawning does not seem like such a necessary thing to us, and when it happens we try to stop it using various ways, right? So we can all imagine life without yawning, so I just find it quite interesting and fascinating that GOD has kept such an insignificant little thing as part of HIS creation plan! Of course HE knows what’s best for us.