When many people share a false memory, that's the Mandela Effect in action -- but how does it happen? Learn how our individual brains misremember stuff and how false memories can spread in this classic episode of BrainStuff.

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