![]() On the other hand given the subject matter we wouldn't blame them for falling asleep at the wheel. ![]() A recent study postulates that contagious yawning could be part of the ""neural network involved in empathy.""While the mystery of contagious yawning has yet to be solved perhaps researchers are closing in on an answer. One theory suggests it's a holdover from a period in evolutionary history when yawning served to coordinate the social behavior of a group of animals. ![]() Researchers are currently giving the topic some serious attention. Face it the likelihood of you making it to the end of this answer without looking like one of these gaping maws is unlikely.Although the contagious nature of yawning is well established we know less about why this is so. If a visually impaired person hears a tape of someone yawning he or she is likely to yawn as well. Yawning is extremely contagious - 55% of people who witness someone yawn will yawn within five minutes. ![]() 0,Why are yawns contagious?,"When your body need more oxygen you yawn.When you yawn you take more oxygen in the air.If the density of the oxygen in the air becomes lower other people (their bodies) can feel that and start to yawn to get more oxygen.That's why yawns are contagious.
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