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Topic: Yawn

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	yawn (Site not responding. Last check: 2007-10-23)
		A '''yawn''' is a reflex of deep inhalation and exhalation associated with being tired, with a need to sleep, or from boredom.
		A long-standing theory behind yawning is that there was too much carbon dioxide and not enough oxygen in the blood.
		Another theory is that yawns "seem to be caused by the same chemical compounds (neurotransmitters) in the brain that effect emotions, mood, appetite and more - serotonin, dopamine, glutamic acid and nitric oxide.
	encyclopedia.mysleepcenter.com /yawn.htm (667 words)

	Ovid Quotes
		It can be killed by a sneer or a yawn; it can be stabbed to death by a quip and worried to death by a frown on the right man's brow.
		A, And, Be, Brow, By, Can, Death, Delicate, Frown, Idea, Is, It, Killed, Man, New, On, Or, Quip, Right, S, Sneer, Stabbed, The, To, Worried, Yawn
		A, And, Be, Brow, By, Can, Death, Frown, Idea, Is, It, Killed, Man, New, On, Or, Quip, Right, S, Sneer, Stabbed, The, To, Yawn
	www.brainyquote.com /quotes/quotes/o/ovid118319.html (139 words)

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