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 [...]
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Dr. Mercola is a well-known physician and a multiple New York Times Bestselling Author. He started his website, Mercola.com, in 1997, and it has become the world's #1 Natural Health site. Dr. Mercola is a recognized, licensed Physician and Surgeon in the state of Illinois. He first opened his practice outside Chicago in 1986 and has treated over 20,000 patients.
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