BALTIMORE, Jan. 17 (UPI) -- The number of serious injuries of those wearing headphones with an iPod or MP3 player tripled in the United States from 2004 to 2011, researchers say.
Dr. Richard Lichenstein and colleagues from the University of Maryland School of Medicine analyzed data from the U.S. National Electronic Injury Surveillance System, the U.S. Consumer Product Safety Commission, Google news archives and a university research database on injuries and deaths among pedestrians wearing headphones.