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Why do we yawn?
#11
Due to our boredom or tiredness, perhaps.
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#12
I yawn at weird times.
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#13
Because of subtle differences in air pressure.
Quote:VAE, PUTO DEUS FIO
- Vespasian, on his deathbed
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#14
I blame air.
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#15
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.
Quote:VAE, PUTO DEUS FIO
- Vespasian, on his deathbed
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#16
Post for the money
Quote:VAE, PUTO DEUS FIO
- Vespasian, on his deathbed
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#17
Demons yawn to suck in the souls of the unsuspecting.
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#18
I yawn because I have nothing better to do with my time
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