Humans Can't Not Smile

Why We Can't Not Smile - Epic Science #66

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Key Facts In This Video

  1. Because of "mirror neurons" and social norms, humans tend to smile when we see others doing it. 00:12

  2. One study found those who smile more often appeared more competent in the eyes of their peers. 01:52

  3. Smiling can reduce blood pressure, release endorphins and can create an overall improved mood. 02:06

Written by Curiosity Staff October 30, 2014

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