官方APP下载:英语全能特训(微信小程序版,支持苹果手机、安卓手机)
创办于2003年
UNSV记不住?那就记中文谐音“忧安思危”吧!
  Slow and Steady Wins the Race!
UNSV英语学习频道 - Slow and steady wins the race!
公众微信服务号
英语全能特训(微信公众服务号)
UNSV英语学习频道淘宝网店
客服短信:18913948480
客服邮箱:web@unsv.com
初级VIP会员
全站英语学习资料下载。
¥98元/12个月

HEALTH REPORT - Placebo Effect Update

阅读次数:


VIP会员专享下载:(非VIP会员无权下载!如果想下载,但还不是VIP会员,请点此订购
下载方式:使用鼠标右键(注意是鼠标右键!)点击下面的MP3音频/MP4视频链接,然后选择“另存为…”。
PDF节目文稿 PDF节目文稿  MP3节目录音 MP3节目录音 
文章正文
同步字幕

This is Phoebe Zimmermann with the VOA Special English Health Report.

When scientists want to test the effectiveness of a new drug, they usually divide a large number of people into two groups. One group takes the medicine that is being tested. The other group takes an inactive substance, called a placebo. Placebo pills are usually made of sugar.

None of the people know which pill they are taking -- the active one or the inactive one. In this kind of experiment, the medicine must perform better than the placebo to prove it is effective.

The word "placebo" is Latin. It means "I shall please." And, sometimes, it just might do that. Some people who take the placebo report improvements in their health. This is known as the "placebo effect" -- the effect of something that is not supposed to have any effect.

Some doctors have reported the use of the placebo effect in treatment. For example, a doctor tells a patient that a new drug will stop his or her pain. The pill is only sugar. The patient does not know that. The patients takes the pills and reports that the pain is gone.

An influential study appeared in nineteen-fifty-five. It said treatment with a placebo made patients feel better thirty-five percent of the time. In two-thousand-one, Danish researchers reported that they had examined more than one-hundred studies. They found little evidence of healing as a result of the use of placebos. Other scientists disputed those findings.

But some medical researchers do think it is wrong to use inactive substances when testing new drugs. They say it would be better to use existing drugs instead of placebos and see if the new drug is more effective.

Other researchers are looking at the placebo effect in connection with the use of real drugs for conditions like asthma and high blood pressure. They want to prove whether a drug works better if a doctor provides it cheerfully and tells the patient that it will help. They say a good relationship between a patient and a doctor may increase the effectiveness of the drugs that the doctor provides.

Doctors say investigating the placebo effect is important for the future of medicine. They say the knowledge gained may make it possible to reduce the number of drugs people need to take to improve their health.

This VOA Special English Health Report was written by Nancy Steinbach. This is Phoebe Zimmermann.

网友的学习评论(0条):
版权所有©2003-2019 南京通享科技有限公司,保留所有权利。未经书面许可,严禁转载本站内容,违者追究法律责任。 互联网经营ICP证:苏B2-20120186
网站备案:苏ICP备05000269号-1中国工业和信息化部网站备案查询
广播台