An international group of scientists conducted a large-scale study and concluded that talking on a mobile phone for a long time does not increase the risk of developing a brain tumor. In 2011, the World Health Organization’s International Agency for Research on Cancer (IARC) stated that talking on a mobile phone could cause brain cancer. Radio frequency waves have been declared a “possible carcinogen.” However, many subsequent studies did not confirm this information. However, there were also those who discovered this connection. Both these and other scientific studies had shortcomings.

For example, stories from people who had already been diagnosed with cancer were often selected for analysis. These are so-called retrospective studies, and their flaw is that they look under the light: There are more people in the world who use mobile phones than those who do not. Therefore, it is not surprising that the number of people diagnosed with brain cancer is higher.

In addition, each new generation of mobile phones raises debates about the possible effects of radio frequency electromagnetic fields on health.

Scientists from Karolinska Institute (Sweden), Imperial College London (Great Britain), Universities of Utrecht (Netherlands) and Tampere (Finland), Danish Cancer Institute and other scientific institutions conducted a study covering 264,574 people living in Denmark, Finland, the Netherlands and the Netherlands. They did it. Netherlands, in the Netherlands. and Great Britain. The study was conducted from 2007 to 2012, and its results are presented in the journal. Environment International.

Volunteers first answered survey questions regarding the frequency and duration of mobile phone use. The researchers then analyzed data from these people’s medical records to estimate the incidence of brain tumors.

“For the first time, we were able to conduct a prospective cohort study in which we collected detailed information about participants’ mobile phone use,” said Maria Feichting, a professor at the Karolinska Institute and one of the study’s authors. .

Among the brain tumors examined, brain tumors such as glioma, meningioma and neuroma of the auditory nerve were found. During the period under review, scientists recorded 149 cases of gliomas, 89 meningiomas and 29 cases of auditory nerve neuroma.

It turned out that the risk indicators for the occurrence of brain tumors in those who spend more time on mobile phone conversations for a long time are not significantly different from those who talk less on the phone. For example, the risk of glioma in people who talked on the phone for a long time was similar to those who did not talk, but this rate was 6 percent higher in meningioma. But both here and there the deviations regarding the risks were compared with the accuracy of the statistical assessment. In other words, it was statistically insignificant.

Additionally, participants who started using mobile devices more than 15 years before the study began had no higher risk of developing brain cancer than those who started using them later.