Yawning again?

Why are we yawning? Is it because of tiredness, stress, boredom or overwork or because we do not have enough sleep? It is not only humans are yawning, animals do yawning too.

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Yawning is rarely a sign of an underlying problem, but if you find yourself yawning excessively it can be a good idea to get it checked out. Despite a great deal of research on the subject, researchers have yet to pinpoint the real history of yawning or what the benefits might be. You can read further about yawning here.

In most situation, it is rude to yawn without covering your mouth. A loud, stretching yawn can indicate that your bored with the company or have better things to do than sit and listen to someone else talk. George Washington transcribed that "If you cough, sneeze, sigh or yawn, do it not loud but privately; and speak not in your yawning, but put your handkerchief or hand before your face and turn aside." - a good rule to live by, even today.

Think back to the time you have spent reading this article, how many times have you yawned in the past few minutes. Gosh... I've yawned a few times while writing this....hehehehe...

Interesting facts about yawning:
- Blind people tend to yawn after hearing someone yawn, so "catching" a yawn is not merely visual.
- The average yawn lasts about six seconds.
- If they see someone yawn, 55 percent of people will yawn within five minutes.
- Fewer people will "catch" a yawn if only the mouth is shown in a video.
- Reading about yawning can cause many people to yawn.
- Dogs often yawn to stay calm.
- Chimpanzees can "catch" yawns from each other - they are the only animals other than humans who do.