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Key Vocabulary

Irritants
Irritantes
Ducts
Conductos
Lubricate
Lubricar
Overjoyed
Llenos de alegría
Glands
Glándulas

The Science Behind Tears

Learn what science says about tears.

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Read and listen to this story in Beelinguapp!

The Science Behind Tears

Learn what science says about tears.

Advanced
Read and listen to this story in Beelinguapp!

Crying is the first form of communication of the human being. First, the babies' tear ducts are blocked, but they begin to produce tears at about one-month-old.
What does science say about our tears? Humans are the only species that sheds emotional tears in response to an event: we cry out of sadness but also when we are overjoyed or angry.

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