According to an article published by The Guardian in 2007, the answer to this question is 'no one knows. […] The rapid spread of the networks has been accompanied by negligible research into the potential risks.'

Base stations, at the core of wireless technology, produce radio frequency (RF) fields. As the technology becomes more and more pervasive, we should be increasingly concerned at possible adverse health issues, including cancers.

This is however nothing more than a myth, at least when one looks at scientific evidence. According to the World Health Organization (WHO), in a report published in May 2006 - that is, one year before the article on The Guardian - there has been no scientific evidence proving a correlation between RF exposure and adverse health conditions. And there have been scientific studies on the matter. According to WHO, the main reason why people have been so afraid of wireless technologies' consequences on health is because of media, which has put forward scientific reports that were not confirmed.

To state it loud and clear, in WHO's own words, 'over the past 15 years, studies examining a potential relationship between RF transmitters and cancer have been published. These studies have not provided evidence that RF exposure from the transmitters increases the risk of cancer. Likewise, long-term animal studies have not established an increased risk of cancer from exposure to RF fields, even at levels that are much higher than produced by base stations and wireless networks.'  

Moreover, studies on both human and animals have looked at cognitive and behavioral effects, as well as brain waves, in the aftermath of exposure to RF fields from base stations. This is knowing that base stations emit very low RF signals, and that other wireless networks generate lower RF signals than base stations. No negative effects have been found from those studies, which have utilized RF exposures that are about '1000 times higher than those associated with general public exposure from base stations or wireless networks'.

To conclude, there is no scientific evidence that RF fields have negative impacts on health.

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