Yawn.
This is
somewhat like a test: see if you can read these few paragraphs without yawning,
okay?
Just the
other night, Mom, the Duppster and I were in the car, heading home from an
event. All three of us were
yawning.
So, we started
talking about why people yawn and why it seems that yawns are contagious.
According
to Andrew C. Gallup, PhD, "Brains
are like computers... They operate most efficiently when cool, and physical
adaptations have evolved to allow maximum cooling of the brain."
Gallup reports that the brain warms
up as people get tired and sleepy, but it’s not really boredom or sleepiness
that causes yawning; it’s the need to cool the brain.
We inhale air when we yawn; our
eardrums stretch; cooler air gets to our sinuses, ears, brains and more. Our lungs are stretched.
All of this, of course, is just
Gallup’s theory, but his theory is based on scientific research.
Haven’t we all heard that yawning is
contagious? Is it?
Yes, it is. According to various studies by several
scientists, yawning, which is involuntary, is a part of centuries or eons of
socialization. It’s a way of relating to
other people and has come down through the generations.
So, next time someone yawns, don’t
think the person is bored. He’s just
socializing with you!
Now, there are two questions: 1) Did
you read this without yawning? and 2) Can you keep your eyes open – totally
open – when you yawn?
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