According to Deutsche Welle news; the formation of laughter, it makes it difficult to investigate the positive effects. Average laughter, 4 split-second of sound boom occurs. This fifth volume in the rate of explosions at intervals of one second is repeated. The number of explosions of sound of laughter and sincere laughter degree dependent can continue for a while. But still a short feature with laughter.

University of Maryland in the U.S. research specialist Robert Provine laughter, because laughter at first glance appear to be more tiring motion explains:

“If someone’s laughing physiological profile if you look at it in fact incompatible with stress features that you’ll see. For example, ‘ha ha ha’ derken, do you laugh, would hold your breath, your blood pressure is growing and the heartbeat will accelerate the body’s different regions are forced to.”

Effects were measured in the body

During the positive effects in the body, laughter is not the measure after. University of Maryland cardiologist Michael Miller, laughter is investigating the effects on the blood vessels. Previous studies, stress and anger, lead to a narrowing of the arteries showed the inside. Miller led to the narrowing of the arteries of the mental stress and laughter with them whether a way could be comforting to know whether the research was done.
Researcher, inner layer of blood vessels that provide the flexibility of the method of measurement, explains:

“We put the top of the arm blood pressure instrument. Pressure, normal blood pressure level tool set are as high as 50 points. This leads to the narrowing of blood vessels. Hold for five minutes and then it would remove the blood pressure instruments. Last one minute after removing the inner layer along the veins on the health status evaluation are doing. ”

How was the experiment?

This experiment healthy, non-smokers 20 volunteers attended. During the test scenes watched some movies. Steven Spielberg’s first during the 2nd World War, Saving Private Ryan last film was shown.

Film’s opening scene, the soldiers dying on the shores of Normandy, close-up images of bloody and it seems to be accompanied by somber music. Subjects after 48 hours watching, laughing at the comedy show was able to.

All participants “Saving Private Ryan” film is found stressful. In addition, the narrowing of blood vessels was observed. But after watching the comedy of the vessels has expanded again.

The effect of music was also investigated

Miller, then the impact on the veins of music instead of laughter was investigated. Almost all the participants “Heavy Metal” and “Rap” music was described as unpleasant. In vascular contraction was predictably. Into a happy mood subjects to their favorite type of music were asked to bring to the lab. And most of “Country” music was chosen.

Music and laughter are compared, the results of experiments following cases occurs: a good laugh, to listen to the most popular music has a powerful effect. Makes both vessels relax.