Why do peolpe yawn when they are sleepy!
Question: Why do peolpe yawn when they are sleepy
Answers:
Your body is trying to take in more oxygen to keep yourself awake!.
The brain signals that it is getting fuzzy so by yawning you actually are gulping in more air to give it the oxygen it needs to be more alert!. Www@Answer-Health@Com
The brain signals that it is getting fuzzy so by yawning you actually are gulping in more air to give it the oxygen it needs to be more alert!. Www@Answer-Health@Com
Science has never come up with a completely satisfactory answer for that question!. The most popular theory though is that yawning stems back from our caveman days, when it was a tribal thing!. Perhaps the baring of the teeth was a defensive display to indicate that the yawner was still alert incase of attack, or it may have been a signal to the rest of the tribe that it was time to sleep!. This theory goes some way to explain why yawning is 'contagious' - as in, if you see somebody yawn, you will usually get an urge to yawn too!. Such actions may have strengthed the tribe's group mentality!.Www@Answer-Health@Com
Contrary to popular belief, and many theories; it is actually unknown why you/we yawn!.Www@Answer-Health@Com
Apparently when you yawn it brings more oxygen to your brain and wakes you up!.Www@Answer-Health@Com
It removes excess carbon dioxide from the blood!.Www@Answer-Health@Com
Its a neural reaction to get more oxygen to prepare for sleep!.Www@Answer-Health@Com
brings in more oxygen then normal breathingWww@Answer-Health@Com
because there tired!.Www@Answer-Health@Com