What Caused the Laughter Epidemic of 1962?

At a girls' boarding school in what's now Tanzania, a fit of giggles expanded into a months-long epidemic of stressed-out laughter affecting hundreds of people. Learn what we know (and still don't know) about this mass psychogenic illness in today's episode of BrainStuff, based on this article: https://health.howstuffworks.com/mental-health/human-nature/behavior/1962-tanganyika-laughter-epidemic.htm

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