According to The Sweden’s Karolinska Institute, ten or
more years of cell phone use could increase the risk of developing a
benign tumor on the auditory nerve.

“Ten or more years of mobile phone use increases the risk of developing
acoustic neuroma, a benign tumor on the auditory nerve, according to a study
released on Wednesday by Sweden’s Karolinska Institute. The risk was
confined to the side of the head where the phone was usually held and there
were no indications of increased risk for those who have used their mobile
for less than 10 years, the Karolinska Institute said in a statement. The
institute, one of Europe’s largest medical universities and a clinical and
biomedical research center, awards the Nobel Prize in physiology or
medicine. ‘At the time when the study was conducted only analog mobile
phones had been in use for more than 10 years and therefore we cannot
determine if there results are confined to use of analog phones or if the
results would be similar also after long-term use of digital (GSM) phones,’
it said. The mobile phone market is now dominated by GSM phones, which
replaced the bulkier and less advanced analog phones in many markets the
mid- and late- 1990s. [Continued...]“