There is an English saying, "Laught

There is an English saying, "Laughter is the best medicine." Until recently, few people took the saying 
seriously. Now however, doctors have begun to look into laughter and the effects it has on the human body. 
They have found that laughter really can improve people's health.
     Tests were carried out to study the effects of laughter on the body. People watched funny films while 
doctors checked their heart, blood pressure, breathing and muscles. It was found that laughter has similar 
effects to physical exercise. It increases blood pressure, makes the heart beat quicker and makes people 
breathe deeper; it also works several groups of muscles in the face, the stomach, and even the feet. If laughter 
exercises the body, it must be beneficial. 
     Other tests have shown that laughter appears to be able to reduce the effect of pain on the body. In one 
experiment doctors produced pain in groups of students who listened to different radio programmes. The 
group that tolerated (忍耐) the pain for the longest time was the group which listened to a funny programme. 
The reason why laughter can reduce pain seems to be that it helps to produce a kind of chemical in the brain
which diminishes both stress and pain. 
     As a result of these discoveries, some doctors in the United States now hold laughter clinics, in which they
help to improve their patients' condition by encouraging them to laugh. They have found that even if their 
patients do not really feel like laughing, making them smile is enough to produce beneficial effects similar to 
those caused by laughter.

結果 (中文) 1:

还有一句英语说，"笑最好的药"。直到最近，很少有人拿这句话认真。然而，现在医生开始调查笑和它对人体的影响。他们发现笑声确实可以改善人们的健康。进行试验来研究笑对身体的影响。人们观看滑稽电影时医生检查他们的心脏、 血压、 呼吸和肌肉。它被发现笑声有类似对体育锻炼的影响。它会提高血压，使心跳更快，使人呼吸越陷越深;它也适用于面部，胃和甚至是足部肌肉几组。如果笑声锻炼身体，它必须有益。其他测试表明笑声似乎能够减少疼痛对身体的影响。在一个实验医生产生疼痛群体的学生听不同的电台节目。的容忍 (忍耐) 痛苦的最长时间为听搞笑节目组的组。为什么笑可以减轻疼痛的原因似乎是它有助于产生一种在大脑中的化学这样会降低压力和痛苦。由于这些发现，一些在美国的医生现在举行笑诊所，在其中他们有助于改善病人的条件，鼓励他们笑。他们发现，即使他们patients do not really feel like laughing, making them smile is enough to produce beneficial effects similar to those caused by laughter.

結果 (中文) 3:

英语里有句话，“笑是最好的药”。直到最近，很少有人把 
认真的说。然而现在，医生们已经开始调查笑和它对人体的影响。 
他们发现笑真的可以改善人们的健康。
    试验研究笑对人体的影响。人们看了有趣的电影， 
医生检查了他们的心脏、血压、呼吸和肌肉。结果发现，笑和体育锻炼有着相似 
效应。它增加血压，使心跳加快，使人 
深呼吸；它也可以在脸上，几组肌肉的肚子，甚至脚。如果笑 
锻炼身体，它必须是有益的。 
    其他测试表明，笑声似乎能减少疼痛对机体的影响。在一个实验中产生的 
医生的学生听不同的电台节目组疼痛。的 
组的耐受性（忍耐）时间最长的痛苦是听一个有趣的节目组。 
“笑可以缓解疼痛的原因似乎是，它有助于产生一种化学物质在大脑中 
 减少压力和疼痛。 
    由于这些发现，一些在美国的医生举办了笑诊所，他们在
帮助鼓励他们笑提高病人的情况。他们发现，即使他们的 
患者不想大笑，让他们微笑也足以产生有益的作用类似于 
那些引起笑声。