不过，如果你是经常要用手机或长期煲电话粥的人，至少要保持你的耳朵和手机有1英寸的距离，用有线耳机或蓝牙也是个不错的主意。

更多的信息请看下面的文章。

Danish study finds no cancer link to cell phone

London --

Danish researchers can offer some reassurance if you're concerned about your cell phone: Don't worry. Your device is probably safe.

The biggest study ever to examine the possible connection between cell phones and cancer found no evidence of any link, suggesting that billions of people who are rarely more than a few inches from their phones have no special health concerns.

The Danish study of more than 350,000 people concluded there was no difference in cancer rates between people who had used a cell phone for about a decade and those who did not.

Last year, a separate large study found no clear connection between cell phones and cancer. But it showed a hint of a possible association between very heavy phone use and glioma, a rare but often deadly form of brain tumor. However, the numbers of heavy users was not sufficient to make the case.

That study of more than 14,000 people in multiple countries, in addition to animal experiments, led the International Agency for Research on Cancer to classify electromagnetic energy from cell phones as "possibly carcinogenic," adding it to a list that includes things such as coffee and gasoline engine exhaust.

But that designation does not mean the phones necessarily pose a risk. Cell phones do not emit the same kind of radiation as that used in some medical tests or found in other sources such as radon in soil.

Two U.S. agencies - the Food and Drug Administration and the Federal Communications Commission - have found no evidence that cell phones are linked to cancer.

Yet fears of a link persist, despite the fact that cancer rates have not risen since cell phones were introduced.

About three-quarters of the world's population, more than 5 billion people, use a cell phone.

This article appeared on page A - 12 of the San Francisco Chronicle