The Real Disorder Behind the Joker's Laugh
Pseudobulbar affect causes people to laugh or cry uncontrollably.
In the film that shattered box office records over the weekend, Phoenix’s sinister character explains he has a condition that causes him to laugh uncontrollably.
It's called pseudobulbar affect, also known as PBA, and it's a neurological condition characterized by uncontrollable laughing and/or crying outbursts.
The documentary “Beyond Laughter and Tears: A Journey of Hope” features people who have PBA.
“This is a neurological disorder that can be very disruptive on one’s life,” psychologist Dr. Jeff Gardere told Inside Edition. “Quite often we see people who tend to isolate themselves because they can't control these emotions.”
Nearly 2 million in the U.S. have PBA.
Trending on Inside Edition
Store Manager Says 911 Operator Hung Up Because She Was Whispering as Buffalo Gunman Stalked AislesCrime
Police Searching for Person of Interest in Mysterious Shooting Deaths of New Hampshire CoupleCrime
Anita Hill, the Optimist: Overcoming the Undoing of Roe v. Wade Is Possible 'by Pulling Together,' Hill SaysPolitics
TV Reporter Becomes Center of Online Conspiracy Theory Because of a TypoOffbeat
Georgia SWAT Officer Gets Flagged Down on Road and Saves Baby Who Stopped BreathingHeroes