Alistair Olver profile image 77

Why do we yawn?


We all do it, but what is the purpose of yawning?

 

sort by best latest

CrescentSkies profile image83

Michael Ward (CrescentSkies) says

You can help the HubPages community highlight top quality content by ranking this answer up or down.

4 years ago
 |  Comment
lburmaster profile image79

lburmaster says

You can help the HubPages community highlight top quality content by ranking this answer up or down.

4 years ago
 |  Comment
Vacation Trip profile image69

Susan (Vacation Trip) says

You can help the HubPages community highlight top quality content by ranking this answer up or down.

4 years ago
 |  Comment
peachpurple profile image73

peachy (peachpurple) says

You can help the HubPages community highlight top quality content by ranking this answer up or down.

4 years ago
 |  Comment
MickS profile image75

MickS says

You can help the HubPages community highlight top quality content by ranking this answer up or down.

4 years ago
 |  Comment
profile image0

Proud Foot says

You can help the HubPages community highlight top quality content by ranking this answer up or down.

4 years ago
 |  Comment
profile image0

JThomp42 says

You can help the HubPages community highlight top quality content by ranking this answer up or down.

4 years ago
 |  Comment