It’s a mysterious, newly discovered disease that strikes mainly young women, and it’s often misdiagnosed. Doctors who discovered it, here in Philadelphia, say it’s like your brain is on fire. 3 On Your Side Health Reporter Stephanie Stahl says it starts with personality changes.

Young women dazed, restrained in hospital beds, acting possessed and then becoming catatonic. They’d been so normal, when suddenly their lives went haywire.