The Science of the "Ha Ha Ha Ha": Why We Can’t Stop Laughing
Ever notice that a laugh almost always follows a specific pattern? According to researchers at the University of Maryland, laughter is composed of short notes—each about 75 milliseconds long—repeated at regular intervals. It’s physically impossible to laugh "ha-ho-ha-ho"; your body naturally sticks to one vowel sound per "bout." 3. Laughter is Social Glue ha_ha_ha_ha
Humans aren't the only ones with a sense of humor. Rats chirp when they are tickled, and chimpanzees have a panting "laughter" they use during play. It seems the "ha ha" is hardwired into the mammalian brain as a way to facilitate play and cooperation. The Bottom Line The Science of the "Ha Ha Ha Ha":