Why are you Laughing? (03:08)
Jimmy Carr teams up with a group of scientists to understand why people laugh and what it means for humanity.
Laughter Taken Seriously (04:47)
Professor Sophie Scott studies recordings of laughter from all over the globe. She discovered that all humans understand laughter; it may be a reflection of humanity's evolutionary history.
Humor vs. Laughter (07:10)
While laughter is universal, humor varies from culture to culture. Comedy is personal, but laughter is primitive and can be considered a type of breath.
Pain Test (03:43)
Studies have shown a person’s threshold for pain increases after they laugh. Professor Robin Dunbar’s wall-sit test demonstrates the phenomenon.
Grooming and Laughter (07:37)
Laughter is a more efficient type of social grooming. A person is able to groom more than one person at a time in opposition to physical grooming.
Fake Laughter (07:00)
Scientists found there are two types of laughter: real laughter and posed laughter. Both of these are equally important to social interaction.
Theory of Comedy (02:25)
A new unified theory states humor that is created in the space between boredom and disgust.
Mismatch of Expectations (06:59)
There are three traditional theories of comedy. The Benign Violations Theory states that everything humorous has a dark side. Laughter is a signal that something "wrong" is actually not wrong.
Rats and Laughter (05:08)
Scientists discovered that rats laugh, helping them to pinpoint the origin of laughter. The discovery provided technology that allows experts to try to develop a new way to fight depression.
Social Emotion (01:46)
Scientists learned laughter is a social emotion that makes people healthier. Comedy functions as a way to make clear what’s wrong with the world.
Credits: Science of Laughter (00:33)
Credits: Science of Laughter
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