The Funny Thing About

                              LAUGHTER

   It’s No Joke:

                       laughing may be one

                                        of nature’s cleverest tricks

                                                           for keeping us healthy and safe.


                                                                             By: Jeffrey Kluger

         GOOD NEWS FOR CARROT TOP:


                  JOKES DON’T HAVE TO BE FUNNY TO make people laugh. And good news for folks with tickets to a Carrot Top show: vigorously laughing even when there’s nothing particularly amusing may be good for your health. Of all the absurdly silly things human beings do, laughing ought to be among the hardest to explain. If early homo sapiens were told they were going to be loaded with behavioral software that would cause them to convulse, pant and emit loud whooping noises when amused or touched in particular ways, they would probably have held out for Human 2.0. But the fact is, laughing makes a lot of sense.


What else can so enjoyably exercise the heart and boost the mood? What

else can serve so well as both a social signal and a conversational lubricant? What else can bond parents to children, siblings to one another and teach powerful lessons about staying alive in a tooth-and- claw world? Laughter may seem like little more than evolution’s whoopee cushion, but if scientists studying it are right, we owe it an awful lot of thanks for some surprisingly serious things.


One thing researchers notice about laughter is that it’s something we seldom do point” and the always rib tickling “I’ll see you guys later.” In each case, the laughter seemed merely a bit of audible punctuation. Whether or not what the speaker says is genuinely funny, any reciprocal laughter from the listener serves as a powerful reward pellet, reinforcing the direction of the conversation. It also flatters the speaker, which can be a potent card to play when a conversation becomes flirtatious “Women laugh most in the presence of men they find attractive,” Provine says. “Men are the leading laugh getters; women are the leading laughers.


Just why the pleasure we take in wordplay of pratfalls elicits the noise we recognize as laughter is uncertain, but Provine says it has roots in the physical play of other primates. The human ha-ha he believes, is very similar to the simian pant-pant, something that occurs a lot when apes wrestle and chase. “Laughter is basically the the sound of labored breathing.” he says.   While laughing adds a level of communication to conversation, it can also create a wordless bond across a room. As much as we might dread an attack of the giggles in the middle of a poetry reading or a eulogy, it can also be a lot of subversive fun—particularly when the bug spreads to the person sitting next to you.


The infectious nature of laughter is behind the idea of the laugh track— humor’s Muzak—and while canned yuks ought to have all the freshness and appeal of canned peas, they work. “Early television planted people in live audiences and they’d laugh on cue:’ says Lee Berk, professor of pathology and anatomy at Loma Linda University in California. “Now we have the laugh track instead. A far easier way to get a laugh—if harder to pull off at parties—is tickling. Nearly all of us are at least a little ticklish, but far and away, the best tickle targets are babies. Behaviorally speaking, that makes sense. If ever there was a two-way pleasure street, it’s the delight a baby takes in being tickled and the joy the parent experiences in the tumble of laughter it elicits. In a relationship in which verbal conversation is necessarily at a minimum, that is a great way to make a connection.


But there’s more than bonding going on when we tickle. There’s learning too. It’s no coincidence that the parts of the body that are most ticklish are also the most vulnerable—the stomach, the throat and the groin region where the femoral artery lies. Best to learn early that when those areas get touched, you pull away or tuck in your chin. And best to make it a joy for parents to provide that lesson, if only to make sure that they teach it often and you learn it well. “This may explain why we lose our taste for being tickled as we get older7 says human ethologist Glenn Weisfeld of Wayne State University in Detroit. “By adulthood we’ve learned how to counter unwanted thrusts.


Laughter may protect us from not only predators but also disease. One of the reasons doctors prescribe exercise for their patients is that even light exertion can increase heart and respiration rate, oxygenate the system and reduce levels of stress hormones. As long ago as the 1980s, Berk began suspecting that a good burst of laughter might do the same.


In order to test his idea, he recruited 10 volunteers and drew three samples of their blood before they watched a one-hour cornedy video. He then took another sample every 10 minutes during the video and three more after. For comedy-club owners looking for ways to get the laughs rolling, mandatory blood tests might not be the best idea, but they served Berk well. Laughter, he found, indeed appeared to turn down the spigot on stress chemicals—cortisol, the primary stress hormone, most significantly.


In a follow-up study in 2001, he tracked two groups of cardiac patients for a year after a heart attack. One group was asked to watch 30 minutes of comedy a day as an adjunct to medical therapy; the other received the medical care alone. At the end of the year the laughing group had lower blood pressure, lower stress-hormone levels, fewer episodes of arrhyth-mia and, most important, fewer repeat heart attacks. “Laughter is a form of internal jogging:’ Berk says. “What a nice way to get the lungs to move and the blood to circulate.” Provine is dubious about health claims for laughter and suggests that perhaps it’s not the act of laughing that makes us better but the situations in which the laughter occurs. “If you’re laughing in the company of friends and family, maybe it’s [the presence of] those people that’s the important intervention,” he says .If that’s the case, laughter clubs can’t be far behind—and in fact they’re here already. Borrowing an idea from Indian physician Madan Kataria, the famed Laughing Yogi, Ohio-based psychologist and motiva tional speaker Steve Wilson has launched a therapeutic-laughter group and website (worldlaughtertour.com ), offering training for what he calls Certified Laughter Leaders—masters of mirth who establish clubs in hospitals and nursing homes to bring patients together and get them laughing.


One of the first laughter clubs in the U.S. got started at the Bethany Nursing Home in Canton, Ohio, in 1999. Since then, Wilson estimates, 1,000 Laughter Leaders have been certified and have fanned out to make merry around the country. “The patients all just get together and laugh,” he says. “It’s a way of blowing off steam and discharging tension.”


That, of course, can be said of almost all laughter. Something that can help you not only relax but also connect with a friend, bond with a baby and even get over what ails you is clearly one of nature’s brightest little brainstorms and not, after all, one of its little jokes.

                                                                        —With reporting by:

Carolina Miranda and

Sora Song/New York



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