We search, we check, we test, scientists continue to study possible health risks of mobile phones. Remember, he is regularly suspected of increasing the frequency of brain tumor.
-In search of a possible tumor
-Tumor rather on one side than the other?
In search of a possible tumor
Some think that we are relentlessly for several years to detect brain tumors related to the intensive use of mobile phones. Others believe that it applies to legitimately and conscientiously check their innocuite. Mais regardless of which side one takes, studies come since the 90s, when an increased incidence of lymphomas has been demonstrated in rats exposed to magnetic fields.
But so far, except a few trials discussed scientifically and methodologically, the results are consistent with a lack of increased risk of brain tumors in mobile. Portent enthusiasts, a new study led the research as far and sown doute. Etant given the rarity of brain tumors, or gliomas, this is what we call a case-control study, which compares the phone habits of a population of patients with glioma a control population free of tumor. The first group included nearly 1,000 subjects, in whom a brain tumor was diagnosed between late 2000 and early 2004. The control group consisted of about 1,700 people. Extensive data on their use of mobile phone were collected: date of commencement of use, frequency, aircraft type, analog or digital, etc..
Tumor rather on one side than the other?
It was found that regular users of the mobile are not as likely tumor than non-users, and this, whatever the frequency of use and the type of device used. However, the authors have gone further in their exploration by finding out whether a relationship existed between the affected hemisphere by the glioma and the usual side listening. They observe and the risk of tumor in the right hemisphere was increased by 24% in people usually placing their phone on the right ear.
But conversely, this increase on the same side is accompanied by a decreased risk of contra lateral tumor by 25%, which is opposite to that of listening. However, these associations are suspected to be a reflection of some bias, from even auteurs. Ce to remember is that there is no proven relationship between the use of mobile and brain tumors. And even if an ipsilateral risk is confirmed, it would probably be offset by a decrease in contra lateral risk.