Talk:Yawn

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Comprehensive article, well done! I've made some grammar changes to bring the reading level down a bit. A few other points:

  • "Ethologists agree that almost all vertebrates yawn" - A reference would be helpful
  • Is it possible to go into slightly more detail about SSRIs and other drugs as a potential cause of excessive yawning?
  • Might it be worth a line suggesting why yawning is interpeted as being so rude socially?
  • A section refuting other causes (e.g. lack of oxygen) would round out the article nicely.

All the best

--PaulWicks 12:41, 27 May 2008 (EDT)

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