Why do we cry? The three types of tears - Alex Gendler

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Check out our Patreon page: https://www.patreon.com/tededView full lesson: http://ed.ted.com/lessons/why-do-we-cry-the-three-types-of-tears-alex-gendlerWhether we cry during a sad movie, while chopping onions, or completely involuntarily, our eyes are constantly producing tears. Alex Gendler tracks a particularly watery day in the life of Iris (the iris) as she cycles through basal, reflex and emotional tears.Lesson by Alex Gendler, animation by The Moving Company Animation Studio. Learn more about your ad choices. Visit megaphone.fm/adchoices

Episode metadata supplied by the publisher feed · Published Sep 15, 2026

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Why do we cry? The three types of tears - Alex Gendler

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