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Many researchers believe that the purpose of laughter is related to making and strengthening human connections.

Laughing - Wikipedia

en.wikipedia.org/wiki/Laughter

A normal laugh has the structure of "ha-ha-ha" or ... long or short "inter-note intervals" do not happen due to ...

Why do humans laugh? The evolutionary biology of laughter. - Slate

www.slate.com/articles/arts/culturebox/features/2014/the_humor_code/why_do_humans_laugh_the_evolutionary_biology_of_laughter.html

Mar 25, 2014 ... The three couldn't stop laughing—and soon the uncontrollable cackles spread to their classmates. The laughing attacks lasted from a few ...

A big mystery: Why do we laugh? - Technology & science - Science ...

www.nbcnews.com/id/3077386/ns/technology_and_science-science/t/big-mystery-why-do-we-laugh/

May 27, 1999 — Laughter is part of the universal human vocabulary. All members of the human species understand it. Unlike English or French or Swahili, we ...

Why We Laugh - WebMD

www.webmd.com/men/features/why-we-laugh

Mar 27, 2006 ... And why do we expect that any decent James Bond villain will cackle ... In humans, laughter predates speech by perhaps millions of years.

Why Do We Laugh? - How Laughter Works | HowStuffWorks

science.howstuffworks.com/life/inside-the-mind/emotions/laughter2.htm

We laugh when we are told a funny joke or when presented with other humorous ... Philosopher John Morreall believes that the first human laughter may have ...

Why Do We Laugh? - WebMD

www.webmd.com/men/features/why-do-we-laugh

Laughter is so basic to humans, we barely notice it -- unless it totally pleases or absolutely annoys us. But laughter ... Do you seem to laugh more than others?

Why Do People Laugh: Here Are the Reasons Why - Mercola

articles.mercola.com/sites/articles/archive/2016/09/24/why-do-we-laugh.aspx

Sep 24, 2016 ... This could have been particularly important for small groups of early humans.” The very act of laughing is a scientific study in culturalism.

Why do people laugh? You asked Google – and here's the answer ...

www.theguardian.com/commentisfree/2015/jul/01/why-do-people-laugh-google

Jul 1, 2015 ... Humour, comedy and jokes do seem to be very important to humans: as far as we can see, as long as humans have had language, we have ...

BBC - Future - What makes us laugh?

www.bbc.com/future/story/20120601-what-makes-us-laugh

Jun 5, 2012 ... Why do we laugh? Well it's funny you ... All humans laugh, and laughter always involves a similar pattern of whooping noises. Deaf people who ...