PDA

View Full Version : Aahh, the Science of Yawning



BAMAPHIN 22
07-30-2007, 09:03 AM
http://www.finheaven.com/clear.gif
One expert believes he may have discovered why people yawn


Some people think yawning stems from a need to stretch or change. Until recently, scientists thought people yawned to replenish oxygen supplies to their blood.

http://abcnews.go.com/GMA/story?id=3425960&page=1

Aussiefinfan54
07-30-2007, 09:41 AM
my science is that people yawn because they are tired.

Mike13
07-30-2007, 10:47 AM
I yawned when I read the thread title.

PhinzN703
07-30-2007, 11:04 AM
http://www.finheaven.com/clear.gif
One expert believes he may have discovered why people yawn


Some people think yawning stems from a need to stretch or change. Until recently, scientists thought people yawned to replenish oxygen supplies to their blood.

http://abcnews.go.com/GMA/story?id=3425960&page=1

Well if ya see someone yawn, you yawn (for the most part) right? Say you're stretching as you see someone yawn.

What happens then? :wink: