As the use of cell phones becomes increasingly common, scientists are beginning to ponder the consequences of regular exposure to cell phone radiation. In particular, there is growing concern about the link between radiation emissions and brain cancer. Although there is no conclusive evidence to link cell phone use to brain cancer, there are a number of variables that make the investigation of adverse health effects a worthwhile undertaking.

Understanding the Risk

Much of the hullabaloo regarding cell phone use stems from two prominent social trends that have proceeded in tandem for the past few decades. In particular, researchers have noted a substantial increase in the rate of brain cancer diagnosis in the Unites States, and some scientists have suggested a 25 percent increase since the 1970s. This increase has been paralleled by a dramatic increase in cell phone use over the past decade.

Anyone who has taken an introductory statistics course is familiar with the pithy saying, "correlation does not equal causation." That is, simply because two events are associated with one another does not mean that one causes the other. With regard to the link between cell phones and brain cancer, scientists are quick to point out that it is tenuous at best. It is likely that a host of factors contribute to increasing rates of brain cancer, including toxins from a variety of environmental sources.

At the same time, some research does document a link between exposure to electromagnetic radiation and subsequent brain cancer. This link, as well as an absence of longitudinal research on the health consequences of cell phone use makes it important to exercise caution. Take the time to learn about the emission level of your phone and to explore options for reducing radiation exposure.