FASCINATING read .... and I doubt itll make you YAWN! :) EXCERPT ..... Yawning Really Is Contagious Its true! One study found that when shown videos of yawning, around 50 percent of people also began yawning. It even happens among animals! A 2004 study observed the catching nature of yawns between chimpanzees and baboons and macaques. Perhaps most impressive, though, are dogs, who might start to yawn after just hearing their owners let one slip. Even merely thinking -- or reading! -- about yawning can trigger one (did we get you yet?). There might not be a scientific study to back this one up, but a number of news outlets peg yawn length at about six seconds. During those six seconds, heart rate increases significantly. A 2012 study examined the body before, during and after yawns and found that a number of the physiological changes that take place during those six seconds -- or however long you yawn for -- are unique to yawning, and were not replicated when study participants were simply asked to take a deep breath.
Posted on: Fri, 14 Mar 2014 08:14:39 +0000
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