Personal music players may be making teens deaf

A new study has reignited the debate on whether iPods and the like cause hearing loss. Abbey Berg of New York's Pace University tracked 8,710 girls, whose average age was about 16, for 24 years. She found that during this period, high-frequency hearing loss — a common result of too much noise — nearly doubled, from 10.1 percent in 1985 to 19.2 percent.