Laughter

Humans laughed before they spoke. 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.


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 did not 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."