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Why is Yawning Contagious?: Everything You Ever Wanted to Know About the Human Body, and Some Things You'd Rather Not - Softcover

Gould, Francesca

 
9780749951580: Why is Yawning Contagious?: Everything You Ever Wanted to Know About the Human Body, and Some Things You'd Rather Not

Inhaltsangabe

Everything you ever wanted to know about the human body - and some things you'd rather not...A wonderfully entertaining yet authoritative treasure trove of facts about our anatomy - it answers all the questions about our bodies we're usually too embarrassed to ask.· Why is yawning contagious? Some experts think that yawning may have developed as a means of communication. It may, for example, be a way of signalling to others that it's important to remain alert and stay awake in a certain situation. Another theory is that our early ancestors used it as part of their social behaviour, and as a way to help build a bond with the rest of the group.· Why are bogies green? When white blood cells meet germs, they make a large amount of an enzyme called myeloperoxidase, which is green because it contains a lot of iron. The colouration therefore comes from the iron.

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Über die Autorin bzw. den Autor

Francesca Gould is a lecturer in anatomy and physiology, and has always had a fascination for the more unusual and gruesome aspects of the human body. She is the author of Why is Yawning Contagious? And Horny Lizards and Headless Chickens.

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