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SciShow: Season 2014

2014x107 Why Do We Blush?

  • 2014-07-15T04:00:00Z on YouTube
  • 10m
  • United States
  • Documentary, Special Interest
Aw, don't be embarrassed everyone does it! Quick Questions explains what causes blushing, which Darwin called "the most peculiar and most human of all expressions."
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