human
I'm worried about the health risks of using a cell phone. Is this a valid concern?
assistant
Yes, you are right to be concerned about the potential health risks of using a cell phone. Studies have shown that prolonged use can cause headaches, fatigue, and difficulty concentrating. It is also thought that long-term exposure may increase risk for certain cancers and other diseases. So it is important to limit your use of cell phones as much as possible.