2006-07-23 04:36:58 · 5 answers · asked by Craftyness 2 in Health ➔ Other - Health
Who can answer better than this one :)
http://www.coolquiz.com/trivia/explain/docs/yawn.asp
2006-07-23 04:39:48 · answer #1 · answered by rpkeskar 2 · 0⤊ 0⤋
It's our brain requesting more oxygen. The yawn takes in more air, speeds up our blood so that more oxygen can be delivered quickly to the brain and increase our alertness.
2006-07-23 11:40:38 · answer #2 · answered by shire_maid 6 · 0⤊ 0⤋
okay this may seem weird but we actually yawn because we have low oxygen not because we are tired! I know it seems weird but like when you get tired your breathing changes and you take in less oxygen and may yawn! hope that helped
2006-07-23 11:42:54 · answer #3 · answered by pepsiman777 2 · 0⤊ 0⤋
haha thats really funny! I was yawning when I saw this question but I have no idea why! :)
2006-07-23 11:41:30 · answer #4 · answered by jesslovesblink 4 · 0⤊ 0⤋
To release extra gases. It helps us relax. That's why we mainly do it at night.
2006-07-23 11:42:05 · answer #5 · answered by Anonymous · 0⤊ 0⤋