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Posts Tagged ‘how to sleep better’

 

Does Yawning Help Keep Your Brain Cool?

Posted on May 11th, 2012 by author  |  No Comments »

Why do people yawn? This involuntary action, which people do as early as 11 weeks after conception, is often associated with exhaustion and boredom. At the moment, a number of theories have been formulated to define the purpose of yawning. Dr. Joseph Mercola enumerates several theories on why people yawn. Theory #1: Yawning Affects Your […]