Why Do We Cry When We're Sad?

Everybody cries sometimes, and that's ok! But have you ever wondered why being sad makes tears come out of your eyes, or why you usually feel better after you cry? Jessi and Squeaks have the answers!

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SOURCES:
https://io9.gizmodo.com/do-tears-of-grief-look-different-from-onion-tears-under-1470513468
https://science.howstuffworks.com/life/inside-the-mind/emotions/crying1.htm
https://www.ncbi.nlm.nih.gov/pubmed/4062644
https://www.independent.co.uk/life-style/health-and-families/features/why-do-we-cry-the-science-of-tears-9741287.html

Видео Why Do We Cry When We're Sad? канала SciShow Kids