HEALTH REPORT - Study Shows No Link Between Cell Phones and

HEALTH REPORT - Study Shows No Link Between Cell Phones and Rare Tumor¹
By Cynthia Kirk

Broadcast: Wednesday, September 07, 2005

I'm Barbara Klein with the VOA Special English Health Report.

 
 
New research has found no link between the use of cellular² telephones and tumors in the head. The study is one of the largest ever done on the possible links between brain cancer and cell phone radiation.

British researchers looked for a possible link between cell phone use and a rare tumor called acoustic³ neuroma. Acoustic neuromas develop on the nerve⁴ linking the brain and the inner⁵ ear.

Researchers also investigated links between cell phones and other kinds of cancers. But they say acoustic neuromas would be the most likely because they grow close to where people hold cell phones.

Scientists at the Institute of Cancer Research in London gathered information from studies done in Britain, Denmark, Finland, Norway and Sweden. Cell phones have been widely used in those countries for more than ten years.

The researchers questioned more than four thousand people. Six hundred seventy-eight of them had developed acoustic neuromas. The researchers then compared their cell phone use over a ten-year period. The results were published in the British Journal⁶ of Cancer.

Anthony Swerdlow led the study. He said the results suggest there is no major risk of acoustic neuromas in the first ten years of using cell phones. But he said the technology is still too new to know about long-term effects. He also warned that young children who use cell phones could be at higher risk. The results of a recent Swedish study also found no link between cell phone use and brain tumors. In two thousand, a British study found no serious health effects from the use of cell phones. However, it warned that children should use them only in emergencies.

Some investigations⁷ have found a cancer risk. A study by the World Health Organization last year found that people who have used cell phones for at least ten years may be at greater risk for a rare brain tumor.

Other studies have suggested radiation from cellular phones can cause heating⁸ in the brain, headaches and stomach problems. Some scientists suggest that the increased number of cases of brain cancer is likely linked to the use of cell phones.

Almost two thousand million people use cell phones around the world.

This VOA Special English Health Report was written by Cynthia Kirk.  I'm Barbara Klein.

1 tumor   

n.（肿）瘤，肿块(英)tumour

参考例句：

• He was died of a malignant tumor.他死于恶性肿瘤。
• The surgeons irradiated the tumor.外科医生用X射线照射那个肿瘤。

2 cellular   

adj.移动的；细胞的，由细胞组成的

参考例句：

• She has a cellular telephone in her car.她的汽车里有一部无线通讯电话机。
• Many people use cellular materials as sensitive elements in hygrometers.很多人用蜂窝状的材料作为测量温度的传感元件。

3 acoustic   

adj.听觉的，声音的；(乐器)原声的

参考例句：

• The hall has a fine acoustic.这个大厅的传音效果很好。
• Animals use a whole rang of acoustic, visual,and chemical signals in their systems of communication.动物利用各种各样的听觉、视觉和化学信号来进行交流。

4 nerve   

n.神经；勇气，胆量，沉着，果断

参考例句：

• Did he have the nerve to say that?他竟有脸说这话吗？
• He never got up enough nerve to meet me.他从没有足够的胆量来见我。

5 inner   

adj.内部的，里面的；内在的，内心的；精神的

参考例句：

• The label is on the inner side of the box.标签贴在盒子内侧。
• Other people seek the mountains for renewal of their inner lives.另一些人到深山中去，寻求新的精神生活。

6 journal   

n.日志，日记；议事录；日记帐；杂志，定期刊物

参考例句：

• He kept a journal during his visit to Japan.他在访问日本期间坚持记日记。
• He got a job as editor of a trade journal.他找到了一份当商业杂志编辑的工作。

7 investigations   

（正式的）调查( investigation的名词复数 )； 侦查； 科学研究； 学术研究

参考例句：

• His investigations were intensive and thorough but revealed nothing. 他进行了深入彻底的调查，但没有发现什么。
• He often sent them out to make investigations. 他常常派他们出去作调查。

8 heating   

n.加热，供暖，暖气装置；adj.加热的，供暖的

参考例句：

• They will install a heating and lighting system in our house.他们将在我们家装上供热供电系统。
• If the pressure is too low,the heating system will act up.如果压力太低，供暖系统就会出毛病。