Monday, April 24, 2017
Contact us    |    Advertise    |   Help   RSS icon Twitter icon Facebook icon
    Home  ·  News  ·  Forum  ·  Stories  ·  Image Gallery  ·  Columns  ·  Encyclopedia  ·  Videos
Find: in

What is the purpose of yawning ?


Posted on Thursday, 15 May, 2014 | Comment icon 20 comments

Yawning is an extremely contagious behavior. Image Credit: sxc.hu
The conventional idea that yawning is a sign of tiredness or boredom is now thought to be incorrect.
Instead, yawning may actually be about regulating the temperature of the brain. Like a computer, the brain operates best within a certain range of temperatures and when it gets too hot a good yawn can help to cool it down, promoting clearer thinking.

Conventionally associated with tiredness, yawning was long thought to be a way for the body to help wake itself up using a sudden jolt of oxygen. While it is true that yawning occurs more frequently when we are tired, this may be because being tired and exhausted can raise the brain's temperature, leading to more frequent yawning in order to help cool it down.

These conclusions have also been carried across to the phenomenon of contagious yawning. In the case of a pack of animals for instance, yawning can help to keep the whole pack alert by having members subconsciously yawn when they observe one of the others doing it.

Yawning is so contagious in fact that even reading about it can induce yawning. It is quite likely that you've yawned at least once yourself while you were reading this article.

Source: Independent | Comments (20)

Tags: Yawning, Brain


 
Recent comments on this story
Comment icon #11 Posted by Child of Bast on 15 May, 2014, 14:32
I read somewhere that yawning was also the cause of one's body requiring a boost of oxygen in the blood stream. I wish I could remember the article in question. That's what I have heard/read as well. Nothing to do with boredom.
Comment icon #12 Posted by BuzzLightYear on 15 May, 2014, 14:51
A little trick you can pull on a car load of people or a gathering of people is to yawn, wait a bit and yawn again. If you repeat this enough before long several people will start to yawn. LOL
Comment icon #13 Posted by Merc14 on 15 May, 2014, 16:01
so they can smell your breath and see their vulva, and vice versa, ewwww!!!! I think you mean uvula but if they want to show the other bits it is fine by me
Comment icon #14 Posted by maximusnow on 15 May, 2014, 16:07
I buy yawn vacinations every morning, they last 5 hours and taste like fruit.
Comment icon #15 Posted by stevemagegod on 16 May, 2014, 2:11
I have actually "forgot" how to yawn. I don't understand why i can' yawn anymore. It's like i will feel this "surge" of energy come up but when i have my mouth open nothing comes out. I haven't had a good "yawn" in months.
Comment icon #16 Posted by Frank Merton on 16 May, 2014, 2:58
Sounds serious. Ayaunism. Get it treated.
Comment icon #17 Posted by TheGreatBeliever on 16 May, 2014, 13:01
It IS because we are tired n bored!
Comment icon #18 Posted by Junior Chubb on 16 May, 2014, 21:54
I have actually "forgot" how to yawn. I don't understand why i can' yawn anymore. It's like i will feel this "surge" of energy come up but when i have my mouth open nothing comes out. I haven't had a good "yawn" in months. Good brain ventilation or you are just to cool for skool
Comment icon #19 Posted by amaterasu on 16 May, 2014, 22:22
I yawn a lot when my husband explains his job to me. When he looks annoyed that I seem bored I tell him I have air hunger ....he seems to be happy with that explanation
Comment icon #20 Posted by FizzPuff on 17 May, 2014, 6:13
I thought it was cause we didn't get enough oxygen. So that it was our bodies way of "manually" getting more air or something... I can't remember the exact wording.


Please Login or Register to post a comment.


  On the forums
Forum posts:
Forum topics:
Members:

5891634
253370
166843

 
New 'Kitty Hawk' flying car footage revealed
4-24-2017
The company behind the futuristic aerial vehicle was financially backed by Google founder Larry Page.
Mystery human species had an advanced brain
4-24-2017
Homo naledi's brain may not have been as big as that of a modern human, but it was still sophisticated.
Voynich manuscript 'written in two languages'
4-24-2017
Russian scholars have been making headway in deciphering the pages of the mysterious medieval text.
Japan's 'burning pavement' mystery solved
4-23-2017
Authorities in Japan have determined how a stretch of city pavement has been burning people's feet.
Featured Videos
Gallery icon 
Boiling water meets freezing air
Posted 4-24-2017 | 1 comment
A look at what happens when you throw boiling water out in to the freezing Russian winter air.
 
Cave-dwelling spiders
Posted 4-23-2017 | 3 comments
A new species of spider has been found living in caves and mine shafts in Mexico.
 
The human bridge of musicality
Posted 4-22-2017 | 1 comment
A look at how the human brain perceives the concept of music and how it is processed.
 
Swarm of locusts
Posted 4-21-2017 | 0 comments
A look at the extreme destructive power of an enormous swarm of desert locusts.
 
Lawrence Krauss on optimism
Posted 4-20-2017 | 0 comments
Physicist Lawrence Krauss discusses the fact that the universe doesn't care about us at all.
 
 View: More videos
Stories & Experiences
Grandpa's visit
4-14-2017 | Portugal
 
Mysterious dog
4-14-2017 | Utah
 
A night to remember
4-14-2017 | Philippines
 
 
Am I going crazy ?
3-30-2017 | South Africa
 
 
Sleep paralysis or my father ?
3-30-2017 | Los Angeles
 
My nightly occurrences
2-28-2017 | Manchester, UK
 
Saved by a stranger
2-7-2017 | Green River Wyoming
 
Spooky sense
2-4-2017 | India
 

         More stories | Send us your story
 
Top   |  Home   |   Forum   |   News   |   Image Gallery   |  Columns   |   Encyclopedia   |   Videos   |   Polls
UM-X 10.7 Unexplained-Mysteries.com 2001-2017
Privacy Policy and Disclaimer   |   Cookies   |   Advertise   |   Contact   |   Help/FAQ