Research has shown that with primates (humans included)a yawn evolved as a silent mechanism to warn others of potential danger. The return yawn was acknowledgment.
While this is no longer of use to humans, our system is still set up that way.
(While this is no longer of use to humans, our system is still set up that way.
PedroHin Come along & ride on a Flantastic Voyage,
Sat 21 Jul 2007, 0:00,
archived)
I thought it was a method in introducing extra Oxygen into the brain.Other people see it, and do the same, so that the herd has extra Oxygen, or extra alertness, so we can fight \ flee from baddies (like pirates)
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ArghZombies No longer has a Leaky QUIM,
Sat 21 Jul 2007, 0:02,
archived)
Also,it acts as a method of Cooling the brain, which makes it more alert.
( ArghZombies No longer has a Leaky QUIM,
Sat 21 Jul 2007, 0:03,
archived)
Yep, this^It's true I just checked :P
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Sunburn Go on.... It's character building!,
Sat 21 Jul 2007, 0:58,
archived)
hahayou started with "research has shown".. hence what you say is nonsense and probably comes from a shampoo bottle
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Your watch is BACK,
Sat 21 Jul 2007, 0:04,
archived)
:P ...well, it was MY research**Adelie Penguins employ yawning as part of their courtship ritual.
**http://en.wikipedia.org/wiki/Yawn
PedroHin Come along & ride on a Flantastic Voyage,
Sat 21 Jul 2007, 0:06,
archived)
that page needs *lots* of citationsyou work on primate research?
( Your watch is BACK,
Sat 21 Jul 2007, 0:10,
archived)
no, I don'tbut I like sitting and watching people at malls and airports.
( PedroHin Come along & ride on a Flantastic Voyage,
Sat 21 Jul 2007, 0:16,
archived)
only even thinking about shopping malls and airports make me yawn incontrollably;)
( Your watch is BACK,
Sat 21 Jul 2007, 0:24,
archived)