Here's the latest development in the debate over whether extensive cell phone use can lead to brain cancer. A study published in the journal Pathophysiology reports that a team of Swedish researchers found that after 25 years of cell phone use, the risk of developing glioma, a deadly brain cancer, is three times higher.
The study focused on 1,380 people with malignant brain tumors and compared them to healthy people by analyzing their cell phone use. They discovered that people who reported using cell phones for 20 to 25 years were nearly twice as likely to develop glioma than those who used them for less than a year. People who used cell phones for more than 25 years were found to be three times more likely to develop glioma. The study did not show an association of wireless phones with malignant brain tumors other than glioma.
The length of time people tended to spend on their cell phones also appeared to be a risk factor--those who recalled spending a lot of time on their phones were more likely to develop the condition. A limitation of that part of the study, however, is that people often have trouble recalling their cell phone usage.
Though the researchers noted the link between cell phone use and some brain tumors, they conceded that more evidence is needed to more conclusively identify a link.