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

How Did the Great Stink of London Work?
12:10

BrainStuff Classics: How Do Blue Whales Work?
08:41

Do Political TV Ads Really Change Minds?
12:26