The news about cell phones and public health continues to be confusing. Some studies suggest a correlation between cell phone emissions and a slightly higher incidence of human brain tumors. Other studies debunk these findings. Still, some consumer groups suggest radio frequencies from cell phones cause genetic damage. What is certain is that there is a boom in people using cell phones, as well as an increase in brain tumor incidence.
Many people continue to be exposed to electromagnetic fields or live near power lines.
While we can't always pinpoint the cause of a brain tumor, we do know a little about risk factors. Risk factors include heavy exposure to ionizing radiation, such as X-rays, electromagnetic fields, pesticides, and a family history of brain tumors. In animal studies, nitrite compounds found in cured meats caused tumors. A few studies found that radio frequencies, such as the type found in cell phones, increase the division of already damaged cells. Nevertheless, Dr. McKean-Cowdin warns that this may depend on how much exposure to radio frequencies a person has.