Ears Ringing and Other Symptoms Been Linked to Mobile Phones

Some people complain of ears ringing, fatigue, and dizziness or concentration difficulties, symptoms which have been suggested to be triggered by exposure to radio frequency fields. Such complaints have raised concern that certain individuals may be more sensitive than others to electromagnetic energy. This self-reported condition has been referred to as electromagnetic hypersensitivity (EHS).

Studies on electromagnetic hypersensitivity fall mainly into two categories. Some focus on reports from people who say radio frequency fields are making them ill. Others look for an increase in symptoms among populations near mobile phone base stations.

The latter include a 2006 Austrian study that measured radio frequency fields in bedrooms of homes within 600 meters of mobile phone base stations. The residents, who did not know the exact nature of the study, were divided into three groups based on their level of exposure and questioned about 14 symptoms. Reports of three symptoms – ears rining , cold hands and feet and trouble concentrating – were significantly more common in the highest exposure group.

Another study compared a group of healthy people exposed to radio frequency fields with a group who were not exposed and found no increase in symptoms. The participants did not know which group they represented. Similar studies found no consistent proof of ability to detect fields, neither in healthy people nor in people reporting symptoms.

In 2005, the World Health Organization conducted a workshop on radio frequency exposure. The consensus was that although symptoms described as electromagnetic hypersensitivity are real and may be severe and disabling, a relationship between symptoms and radio frequency field exposure has not been proven.

A 2003 study that received considerable attention found people more likely to suffer anxiety, depression, insomnia and other mental distress when they are exposed to radio frequency fields similar to those generated by base stations used in third-generation mobile networks (UTMS). The study was widely discussed because of the implications for the new technology. Follow-up studies were initiated in several countries including one published in 2006 that used a larger study group and better methods and found no effect on symptoms. There was no link between perceived field strengths and actual radio frequency exposure.

Overall, scientific studies have thus failed to provide support for a relationship between exposure to radio frequency fields and self-reported symptoms. Present knowledge suggests that symptoms are not linked to exposure to radio frequency fields, but few studies have addressed this issue directly. The exposure levels from base stations are very low compared to the exposure during the use of a mobile phone. Research regarding health effects from base stations is mainly driven by concern in the general population.

The symptoms attributed to radio frequency fields (RF) and extremely low frequency (ELF) fields– such as those generated by power lines – are similar and in many cases the individuals complain that both fields trigger symptoms. There are more studies on self-reported symptoms and exposure to ELF fields, but as for radio frequency fields the scientific studies have failed to confirm a causal link

Posted in Ears Ringing (emf tinnitus)