Psychologists Andrew Gallup and Gordon Gallup of the State University of New York at Albany suggest that yawning boosts blood flow to the brain and enhances alertness by cooling it down. And “catching a yawn” in a group setting may actually serve to collectively enhance group attentiveness as it passes from one person to another. It may well be physiologically true. But the next time you’re coaching along and your coachee begins yawning . . . he may maintain that he’s only trying to be more attentive (rather than finding you boring). Yeah, right – and how’s that for a difference in mental models?
Link: Yawning may boost brain’s alertness
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