This article is republished from The Conversation. Laughter is an everyday reminder that we humans are animals. In fact, when recorded laughter is slowed down, listeners can’t tell whether the sound ...

Unusual or uncontrollable laughter can signal serious health issues, according to neurologist Dr. Sudhir Kumar. Conditions like gelastic seizures, laughter-induced syncope, pathological laughter, and ...

Add Yahoo as a preferred source to see more of our stories on Google. A well-deployed laugh can help grease a social interaction, even if nothing is funny. Catherine Falls Commercial/Moment via Getty ...