Tuesday, June 26, 2012

Did You Why Do We Yawn?


Did You Why Do We Yawn?

BOOMZ77-Always synonymous with a sleepy yawn, even though academic studies have a more scientific answer to this question.
Binghamton University research team concluded that yawning is something to do with the temperature in our brains. That is, the yawn served to "cool down" our brain.
Analogues as follows: The brain works like a computer. Well, the computer can operate efficiently when kept cool. Because that's required components such as fans, heatsinks, so that the computer is not fast heat up and stop working.
Similarly, the brain works, heating occurs through the activity of thinking and moving to a sharp rise in brain temperature. Yawning also a solution to restore a stable temperature for the activity of the brain itself.
Yawning also seems to be part of a transitional moment in the brain. Like for example in the period before sleep and after waking up. Conditions such as multiple sclerosis (involves thermoregulatory dysfunction), migraine and epileptic seizures are also suspected to cause excessive yawning attacks.
So, why is yawning so contagious?
The researchers believe, we often go to see other people yawn when first evaporated as the automatic mechanism and associated with the suggestion. Studies also show that contagious yawning may be associated with a tendency toward empathy; trying to understand an connect with others.
It is estimated, 55% of people will yawn within five minutes after seeing someone else yawn.
Interestingly, a 2007 study found that children with autism spectrum disorders do not increase the frequency of yawning after seeing someone else yawn video. This supports the claim that the contagion in yawning related to empathic capacity.
Yawning In Animals
In animals, yawning can serve as a warning signal. Charles Darwin, in his book The Expression of the Emotions in Man and Animals wrote that baboons yawn to threaten their enemies (possibly by displaying large canine teeth)
Photo: Planet-science
Guinea pigs are also similar to evaporate because it deals with anger. It is often accompanied with chattering teeth and the sound of snoring.Photo: Guinea Pig: mistlet0e.tumblr.com
Another function of yawning on penguins, these animals evaporates as part of their courtship ritual.
While snakes yawn to realign their jaws after a meal and for respiratory reasons.
Photos: cornsnakes
The closest to the human habit of just a dog. "Faithful friend of man" is often yawn after seeing a human yawn.

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