U.S.A. discover mouth may long-lived laugh

U.S.A. discover mouth may long-lived laugh,
A latest research reveals, the person's smiling time, the greater intensity what the mouth is held is, gather wrinkle many around the eyes, he may long-lived then.
There is such a statement for a long time, the optimistic attitude of conduction in society that takes things philosophically can influence people's life-span. A scientific research group in Michigan state Wayne university of U.S.A. did a research recently, have proved this view from data.
It is reported, researchers shot and started with analyzing from 184 late baseball players the photo in 1952, they have divided these athletes into 3 kinds of types according to the facial expression on the photo, including " L Stoic " , " Reveal the tooth and smile " R Sum " L Laugh heartily " . Subsequently, after collecting exhaustive materials such as the age of all athletes, weight, height and marital status,etc., researchers have found the clue between facial expression and life-span gradually.
The result reveals, in these 184 late players, those are nearly " L Stoic " R People average life span about 72.9 years old," L Reveal the tooth and smile " R Person probably can live to the age of 75,and " L Laugh heartily " R Person average life span piece last 79.9 year old.
In addition, this research is still found, " L Put on an air of cheerfulness " R It is unhelpful, only those feel from the bottom of heart happy person has an opportunity to lengthen the life-span. Qiu MeiRong
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