Your cart

Close

Total AUD

Checkout

Imprint

  • Piatkus

Why Is Yawning Contagious?: Everything you ever wanted to know about the human body and some things you'd rather not know

Francesca Gould

Write Review

Rated 0

Prose: non-fiction, Reference works

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.

Read More Read Less

Francesca Gould

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.

Readers also viewed

This website uses cookies. Using this website means you are okay with this but you can find out more and learn how to manage your cookie choices here.Close cookie policy overlay