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The Laughing Cure

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WebMD Feature

May 8, 2000 -- As a veteran television executive involved in sitcoms like Roseanne and Home Improvement, Sherry Hilber watched weekly as studio audiences writhed with laughter. "I'd see them leave at the end of the show and think, 'Maybe for the rest of the night something is happening inside their bodies.' "

Intrigued, Hilber boned up on the limited literature about humor's effects on physical health. She found a mixed bag of upbeat anecdotes, tantalizing small studies, and contradictory results.

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Seeking to use her comedy knowledge for a larger cause, Hilber established Rx Laughter (http://www.rxlaughter.org), a nonprofit project dedicated both to helping the ill via humor and to supporting more scientific research on the topic. Thanks to her fund-raising efforts, researchers at the University of California, Los Angeles (UCLA) are set to begin exploring whether funny videos can promote healing.

Sidestepping the Banana Peel

The UCLA/Rx Laughter researchers hope to sidestep some of the banana peels that have tripped up previous researchers.

For instance, if comedy helps, is it laughing aloud or internal amusement that matters most? No one knows. The UCLA/Rx Laughter researchers will start by screening videos Hilber assembled for 100 elementary school children to determine what they find reliably funny. Initially, they'll count how often each kid laughs and also ask whether they thought the video was funny, looking for correlation. (The researchers chose to focus on kids partly because they readily respond to humor and laugh more easily.)

Next, investigators will examine the nervous and immune system effects of laughter: heart rate, blood pressure, and the presence of the stress hormone cortisol in saliva, before and after the funny videos.

Eventually, the researchers expect to explore whether comedy changes how kids perceive and respond to pain. Ultimately, they want to see if humor can change the kids' actual health, not just their stress hormones. For example, they may measure how fast wounds heal after surgery and how fast white blood cells rebound to their normal levels after being lowered by chemotherapy.

"You have to pass the 'so what?' test," says the study's co-director, Margaret Stuber, MD, a UCLA professor of psychiatry and biobehavioral sciences. "It may be very interesting to us that we can change salivary cortisol, but does that actually change anything that matters?"

The concept that comedy could improve health makes some medical sense. Studies show that anger, depression, and pessimism impair the immune response, increase surgical recovery and wound-healing times, and can even contribute to higher death rates. And what better way to counter a negative outlook than through a dose of comedy? "Humor and distressing emotion cannot occupy the same psychological space," says Steven Sultanoff, PhD, a clinical psychologist and president of the American Association for Therapeutic Humor.

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