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HomeCategoryScienceBigger yawn might mean bigger brain!
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Bigger yawn might mean bigger brain!

Scientists have long debated the reason we yawn, but a recent study shows that bigger yawns are associated with bigger brains!
Posted by: admin , October 6, 2016
  • Scientists have long debated the reason we yawn, but a recent study shows that bigger yawns are associated with bigger brains!
  • In the study, scientists watched 29 YouTube videos of various mammals yawning (such as mice, humans, foxes, elephants and hedgehogs) and discovered that small-brained animals with fewer neurons in the cortex (outer layer of the brain) had shorter yawns than large-brained animals with more of these neurons.
  • Furthermore, it was found that primates had longer yawns than non- primates.
  • Humans had the longest average yawn at 6 seconds, which was similar to the yawns of African Elephants, which have a brain with a similar weight and number of cortical neurons.

Read more:

http://mashable.com/2016/10/05/big-yawn-could-mean-big-brain/?utm_cid=hp-h-2#W_YQsxu.nmqH

http://www.sciencemag.org/news/2016/10/bigger-your-brain-longer-you-yawn

http://www.seeker.com/your-yawn-reveals-the-size-of-your-brain-2030659404.html

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Tags: Bigger brain, Bigger yawn, Mammals, Recent study, The reason we yawn, YouTube videos

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