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View full lesson: http://ed.ted.com/lessons/why-do-we-like-to-scare-ourselves-margee-kerr

At this very moment, people are lining up somewhere to scare themselves, be it with a thrill-ride or a horror movie. In fact, in October of 2015 alone, about 28 million people visited a haunted house in the US. But you might wonder: What could possibly be fun about being scared? Margee Kerr examines the biology and psychology behind what makes fear so fun.

Lesson by Margee Kerr, animation by Meduzaz animation studio.

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