What if sleep became impossible—forever? This episode uncovers the terrifying reality of **Fatal Familial Insomnia (FFI)**, a rare genetic disorder that shuts down the brain’s ability to sleep, leading to hallucinations, paranoia, and ultimately, death. With no cure and a 50% chance of inheritance, this condition has haunted fewer than 100 families worldwide. Could you survive without sleep? Tune in to find out if this chilling story is fact or fiction!

This one’s TRUE. FFI has affected fewer than 100 families worldwide, and scientists are still searching for answers. Learn more at the National Organization for Rare Disorders (NORD).