Logo

Dimdima

Online Children's Magazine from India

  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
  • dimdima
Menu

The yawn yarn

Feeling bored? Tired? Just woken up? What do you do? You pandiculate!!! In other words you stretch yourself and let out a loud yawn. Have you wondered what makes you yawn? Scientists have pondered over this and have come up with several explanations.

A yawn is the body’s way of telling you that it needs more oxygen. Scientists speculate that you yawn either due to fatigue, or by sheer boredom because, at those times, breathing is shallow, and little oxygen is carried to the lungs.

Yawning, (one yawn takes just about six seconds),opens up the respiratory system. There is a sudden increase in oxygen, the accumulated carbon dioxide is eliminated, restoring normal breathing and alertness. A message that we must yawn comes from the “yawning center” of the brain, located in the hypothalamus, which releases substances, which in turn, induce a yawn.

Whatever the reasons, we do know that a yawn is contagious. When someone next to you yawns, you find it difficult to stifle yours. This has made scientists wonder whether a yawn was some kind of a communicating behaviour in animals, where yawns were used as a signal to indicate an event. Going by this theory, scientists feel that maybe yawning is simply a signal to let people know that you're tired, just as, smiling is to let people know that you're happy and crying is to tell people that you are sad.


Ask A Question...
Answer A Question...
  • Do you have a Science Question?
  • Post it here and get the answer.
  • Some questions posted by others are not yet answered.
  • View those questions and answer them.
Get Help or Give Help.
Our Logo

Dimdima is the Sanskrit word for ‘drumbeat’. In olden days, victory in battle was heralded by the beat of drums or any important news to be conveyed to the people used to be accompanied with drumbeats.

Dimdima.com

Bharatiya Vidya Bhavan
K. M Munshi Marg,
Chowpatty, Mumbai - 400 007
email : editor@dimdima.com

Dimdima Magazine

Bharatiya Vidya Bhavan
505, Sane Guruji Marg,
Tardeo, Mumbai - 400 034
email : promo@dimdima.com

About

Dimdima.com, the Children's Website of Bharatiya Vidya Bhavan launched in 2000 and came out with a Printed version of Dimdima Magazine in 2004. At present the Printed Version have more than 35,000 subscribers from India and Abroad.

Terms of Use | Site Map | Privacy Policy | Testimonials | Feedback | About Us | Contact Us | Link to Us | Links | Advertise with Us |
Copyright © 2021 dimdima.com. All Rights Reserved.