Yawning

13 Weeks Fetal Yawning

What is a Yawn and why do we yawn?

It is something which has fascinated us from thousands of years.

In the earlier days people had a superstitious belief that yawning is a sign that danger is nearing.

Also some people use to say that a person must cover his or her mouth while yawning so that the soul does not escape through the mouth.

But what does science say about Yawning?

Yawning is a reflex of inhalation and exhalation that draws more oxygen into the bloodstream.

It's a built-in physical reaction that we often don't have control over.

We think that we yawn because we are tired . But this is not the only cause for a yawn. We also yawn when we are under stress , when we get bored . Emotion

also will cause Yawning.

Is Yawning contagious?

Sometimes i my selves have noticed that when i see someone Yawning i also yawn Automatically :)

Researchers have found that 40-60% people who see some one yawning will yawn themselves.

Even reading the word " YAWN " will make some people Yawn.

Yawning is not limited to Humans. Even the animals Yawn several times. Birds like cockatiel parrots,penguins also Yawn.

Some of the scientific explanations of why we yawn are related to our physical needs.

One of the explanation is that when our blood needs more oxygen we will yawn.

Yawning will regulate our body temperature.

How yawning is useful?

Yawning is an easiest way to convey the message that You are not interested and got bored.:)

OK then how many times did you Yawn while reading this post?:)