Yeah, I suppose a professional football coach in the middle of a nationally televised football game being watched by tens of millions, trying to find some way for his team of walking wounded backups to win a game, even as a season is slipping a way, could have been disinterested and bored.
Or ...
... maybe he was utterly engaged and overextended, and his body was simply doing what a few million years of evolutionary biology has programmed it to do?
Nah that can't be it. That would only apply if we won. We lost, so he musta just been disinterested and bored.
Or ...
Sept. 23, 2011-- Why do we yawn?
All humans yawn. So do most vertebrate animals. Surely it serves some useful function. But what that might be has puzzled scientists throughout the ages.
Now a series of experiments suggests a surprising reason for yawning. It cools the brain, says Andrew C. Gallup, PhD, a postdoctoral research associate at Princeton University.
"We have collected data on rats, parakeets, and humans. All the data supports the brain-cooling hypothesis," Gallup tells WebMD.
Here's the basic idea:
- When you start to yawn, powerful stretching of the jaw increases bloodflow in the neck, face, and head.
- The deep intake of breath during a yawn forces downward flow of spinal fluid and blood from the brain.
- Cool air breathed into the mouth cools these fluids.
Together these processes may act like a radiator, removing [too hot] blood from the brain while introducing cooler blood from the lungs and extremities, thereby cooling [brain] surfaces," Gallup says.
... maybe he was utterly engaged and overextended, and his body was simply doing what a few million years of evolutionary biology has programmed it to do?
Nah that can't be it. That would only apply if we won. We lost, so he musta just been disinterested and bored.