2 Answers

Vinny

Karma: 262561

It is something that is not fully understood, some say it is an early form of communication, notice that when you yawn, it is contagious, person next to you yawns. I don't believe that it is to draw in more oxygen, or else we would yawn after a run rather than pant.

15 years ago. Rating: 0
Comment this answer

banksizit

Karma: 10063

its a lack of oxygen to our brains

15 years ago. Rating: 0
Comment this answer

Top contributors in Uncategorized category

ROMOS
Answers: 18061 / Questions: 154
Karma: 1102K

Colleen
Answers: 47269 / Questions: 115
Karma: 953K

country bumpkin
Answers: 11322 / Questions: 160
Karma: 838K

Benthere
Answers: 2392 / Questions: 30
Karma: 760K

> Top contributors chart

Unanswered Questions

eSIM oMAN HugoSim

Answers: 0 Views: 8 Rating: 0

thamtu ducan

Answers: 0 Views: 9 Rating: 0

inhopcung