Why do we yawn?

[Sulfux]

Answer down below why humans yawn without googling it!

(I already know the answer )

 

[Loftegen]

Because we're tired.

 

[Elarien]

Because we are yet to find the ultimate question to the ultimate answer.

 

[Sulfux]

Nope!!

 

[The Pharcyde]

http://google.com/search?q=it

 

[Sulfux]

It the movie is not the answer lol

 

[Loftegen]

Because it's contagious!

 

[treadwellia]

Originally a way for folks to communicate getting tired all at the same time, I think. Otherwise, something to do with the brain's needing oxygen.

 

[Sylven]

Because it's cute!

 

[Elarien]

Because it is what the secret evil society that runs the world wants.

 

[Ryccia]

Due to our boredom or tiredness, perhaps.

 

[Feux]

I yawn at weird times.

 

[Zapatian Workers State]

Because of subtle differences in air pressure.

 

[Feux]

I blame air.

 

[Zapatian Workers State]

Contraction of pharyngeal muscles opens the Eustachian tubes which equalize air pressure between the middle ear and the external environment. Subtle differences in air pressure are what cause reflexive spontaneous yawning.

 

[Zapatian Workers State]

Post for the money

 

[Demonos]

Demons yawn to suck in the souls of the unsuspecting.

 

[Al0neForever]

I yawn because I have nothing better to do with my time