Why Is Yawning Contagious 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024


Why Is Yawning Contagious

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Francesca Gould 作者
Portrait; illustrated edition edition (25 Oct 2007)
譯者
2007 出版日期
228 頁數
$ 14.28 價格
19.4 x 13 x 2 cm
叢書系列
9780749951580 圖書編碼

Why Is Yawning Contagious 在線電子書 圖書標籤: 科普   


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Why Is Yawning Contagious 在線電子書 epub 下載 mobi 下載 pdf 下載 txt 下載 2024

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Why Is Yawning Contagious 在線電子書 pdf 下載 txt下載 epub 下載 mobi 下載 2024



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Why Is Yawning Contagious 在線電子書 著者簡介

Francesca Gould is a lecturer in anatomy and physiology, and has written a number of books on holistic therapy. She runs a training school in Bristol and teaches many courses.


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Why Is Yawning Contagious 在線電子書 pdf 下載 txt下載 epub 下載 mobi 在線電子書下載

Why Is Yawning Contagious 在線電子書 圖書描述

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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