Cell Phones Again

The amount of time each month that the average wireless subscriber spent talking on a mobile jumped 430%, to 12.6 hours, between 1998 and 2008, according to the Cellular Telecommunications & Internet Assn. [CTIA]. As handsets gain additional capabilities, people are increasingly using them not only to make calls but also to check weather forecasts, watch videos, and play games. "The weight of scientific evidence has not linked cell phones with any health problems," the Food & Drug Administration states on its Web site.