Sunday, February 20, 2005

Yawning is Contagious

Yawn, and the world yawns with you. New research shows that the sleepy urge really is catching, and that this may be a primitive survival tactic.
Brain scanning of volunteers exposed to pictures of people yawning has established that it is contagious and a "synchronized group activity", in the same way that herds of animals and flocks of birds all take flight at the same time.



3 Comments:

Anonymous Anonymous said...

You won't believe it, but I saw the picture and started yawning. Freaky.

3:02 PM  
Anonymous Anonymous said...

I yawned too. Maybe it IS catchy.

3:21 PM  
Anonymous Anonymous said...

Now I am tired, thanks.

7:11 PM  

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