Why do we cry?

collections: Ted-Ed, Human body
Сложность:
Posted 1 November 2016
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Duration of the video: 3 Min. 43 sec.
Description
Different reasons can make us cry: it may happen when we are watching a sad film, when chopping onions, or we even can cry involuntarily, as our eyes excrete tears constantly. Alex Gendler shows us a very sensitive girl named Iris whose day is full of tears.
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