A British teen reportedly suffers from a rare disorder that causes uncontrollable muscle paralysis when she exhibits strong emotions such as laughter. Speaking to the New York Post, Billie Hodgson, 17 ...

Doctors at Tallaght University Hospital diagnosed 18 young people with a neurological disorder caused by inhaling nitrous oxide or “laughing gas” during a recent 20-month period, a new report shows.

When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. While Joker may be based on a comic book character, the movie is designed to feel as realistic as ...

Joaquin Phoenix appears to put his personal stamp on his version of the Joker. To do that, he couldn't lean on any past iteration of the Clown Prince of Crime. The actor said he pulled inspiration for ...

Pseudobulbar affect (PBA) has been called many different things, including involuntary emotional expression disorder, emotional lability, pathological laughter and crying, emotional dysregulation, and ...

Uncontrolled laughing or crying might indicate pseudobulbar affect (PBA), a neurological condition causing involuntary emotional outbursts unrelated to actual feelings. Frequently linked to stroke, ...

Laughter can be pleasurable for its own sake — a way to bond with others or even signal who belongs in a group and who does not. It may also improve health. Mental and physical health affect one ...