1. HUMANS LAUGHED BEFORE THEY SPOKE
You'll get a chuckle from this trivia about one of our most ancient forms of expression and communication.
Some scientists believe that laughter was used as a way for humans to relate to one another millions of years before they developed the lung strength for language. The mechanism of laughter is so ingrained in our brains that babies as young as 17 days old have been observed doing it. In fact, children born blind and deaf still have the ability to laugh.




In his book, Laughing: A Scientific Investigation, Robert R. Provine, professor of psychology and neuroscience at the University of Maryland, Baltimore, describes an intriguing study about laughter—and it didn't take place at a comedy club. Provine and some graduate students listened in on normal conversations at local malls. They found that out of 1,200 'laugh episodes,' only about 10 percent were generated by a joke. 'Laughter really has a bonding function between individuals in a group,' says Provine.
2. LAUGHTER IS ACTUALLY RARELY TIED TO HUMOR
In his book, Laughing: A Scientific Investigation, Robert R. Provine, professor of psychology and neuroscience at the University of Maryland, Baltimore, describes an intriguing study about laughter—and it didn't take place at a comedy club. Provine and some graduate students listened in on normal conversations at local malls. They found that out of 1,200 'laugh episodes,' only about 10 percent were generated by a joke. 'Laughter really has a bonding function between individuals in a group,' says Provine.
It may sound strange, but several scientists have elicited 'tickle-induced vocalizations' from primates. Penny Paterson, president of the Gorilla Foundation says that Koko, the gorilla famous for her sign language abilities, even had a special 'ho, ho,' for visitors she liked. And rats apparently have very ticklish necks. When Bowling Green State University scientist Jaak Panksepp and his graduate students tickled baby rats' napes, the rodents emitted high-frequency chirps that Panksepp interpreted as laughter.

3. RATS AND MONKEYS LAUGH
It may sound strange, but several scientists have elicited 'tickle-induced vocalizations' from primates. Penny Paterson, president of the Gorilla Foundation says that Koko, the gorilla famous for her sign language abilities, even had a special 'ho, ho,' for visitors she liked. And rats apparently have very ticklish necks. When Bowling Green State University scientist Jaak Panksepp and his graduate students tickled baby rats' napes, the rodents emitted high-frequency chirps that Panksepp interpreted as laughter.

Robert Levinson, psychology professor at the University of California Berkeley, invited couples into his lab and asked each partner to discuss something that irritated him or her about the other partner. The couples who tackled the stressful situation with laughter not only felt better in the moment, but had higher levels of relationship satisfaction and stayed together longer than couples who didn't crack a smile.

4. COUPLES WHO LAUGH TOGETHER, STAY TOGETHER
Robert Levinson, psychology professor at the University of California Berkeley, invited couples into his lab and asked each partner to discuss something that irritated him or her about the other partner. The couples who tackled the stressful situation with laughter not only felt better in the moment, but had higher levels of relationship satisfaction and stayed together longer than couples who didn't crack a smile.


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Nyc 1. I dey laff lyk say 2mao no dey.