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Asker: Dan, 16 years old
Answer
Yawning is a body reflex associated with the respiratory system. Its correct function(s) is not yet clear, but you can find various hypotheses about it on Wikipedia (http://nl.wikipedia.org/wiki/Geeuwreflex).
Answered by
Prof. dr. dr. Luc Bouwens
Biomedical Sciences
Free University of Brussels
Avenue de la Plein 2 1050 Ixelles
http://www.vub.ac.be/
Avenue de la Plein 2 1050 Ixelles
http://www.vub.ac.be/
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