Why We Yawn: To Cool the Brain!...
Why do we yawn? Andrew Gallup, a researcher at Bin... ...he primary purpose of yawning is to control brain temperature .The finding solves several mysteries about yawnin... ...wning.The key yawn instigator appears to be brain temperature ."Brains are like computers," Andrew Gal...
https://www.neatorama.com/2008/12/16/why-we-yawn-to-cool-the-brain/
