What happens when I yawn? / Schwinn, Aleaha

Author:

ISBN13: 
9781433993572
9781433993589
9780329985608
LCCN: 
Compare Title: 
whathappenswheniyawn
Call Number: 
612.21

What happens when I yawn?

  • Schwinn, Aleaha
Introduces yawning, discussing the causes and actions involved in the reflex.

What happens when I yawn?

  • Schwinn, Aleaha
2014
Introduces yawning, discussing the causes and actions involved in the reflex.

What happens when I yawn?

  • Schwinn, Aleaha
Informative text and color photographs portray why and how people yawn. Includes a glossary and further resources.
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