In Metabolism: Cell Phones Cause Increased Brain Activity

A new study finds that an hour-long cell phone call causes a spike in biochemical activity in the user's brain. The researchers can't say whether that's a good thing or a bad thing, but the finding has renewed the debate over cell phone safety and raised calls for more health studies. Cell phones are everywhere. Decades of research into whether cell phone radiation might cause brain tumors or impo ...Metabolism