My sources tell me it's time to reverse the rumors that cell phones are associated with an increased risk of glioma - the most common type of brain tumor - but I'm not sure I am ready to toss in the precautionary headset yet. According to a recent study, there is no evidence that ties cell phone use to tumors. Here's more:

"There were no significant associations observed with duration of use, years since first use, cumulative number of calls, or cumulative hours of use. No increased glioma risk was observed when analog and digital phones were analyzed separately."

I think it's incredibly important that we all take this study with a grain of salt and remember another recent European study suggests people using cell phones for 10 or more years have a higher risk of developing brain tumors than do non-cell phone users. The five-nation study involving more than 4,500 people found a statistically significant increase in the incidence of tumors on the side of the head where the user holds his or her cell phone. My suggestion? Keep that headset.