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R RevBambooBen Tiki Socialite Huntikington Beach Joined: Nov 12, 2002 Posts: 7942	R RevBambooBen Posted posted on Fri, Sep 28, 2007 7:24 PM A recent hypothesis by Andrew C. Gallup and Gordon Gallup of the University of Albany states that yawning may be a means to keep the brain cool. Mammalian brains operate best when they are cool. In an experiment, he showed several groups of people videos of other people yawning. When the subjects held heat packs up to their heads while viewing the videos, they yawned often. But when they held cold packs up to their heads or breathed through their noses (another means of brain cooling), they did not yawn at all. [5] [6]

A recent hypothesis by Andrew C. Gallup and Gordon Gallup of the University of Albany states that yawning may be a means to keep the brain cool. Mammalian brains operate best when they are cool. In an experiment, he showed several groups of people videos of other people yawning. When the subjects held heat packs up to their heads while viewing the videos, they yawned often. But when they held cold packs up to their heads or breathed through their noses (another means of brain cooling), they did not yawn at all. [5] [6]

Post #335408 by RevBambooBen on Fri, Sep 28, 2007 7:24 PM