Are iPods Behind Rising Teen Hearing Loss
 

A team headed by Dr. Josef Shargorodsky, an ear, nose and throat specialist at Channing Laboratory at Brigham and Women's Hospital and Massachusetts General Hospital, drew raw numbers from data collected by the government's National Health and Nutrition Examination Survey, conducted over a six-year period in the 1990s and a two-year period more recently beats by dre cheap.Adjusting for factors such as age, race and exposure to infections that can damage delicate auditory nerves and affect hearing, they found just the kind of slow but significant rise in hearing loss that experts had been predicting in an era in which kids spend more time attached to earphones than ever before. That's what the latest analysis of national health data on adolescents shows. Between 1988-94 and 2005-06, the percentage of teens with hearing loss monster headphones jumped by about a third, from 15% of 12-to-19-year-olds to 19.5%.And the reason may not be the ubiquitous earphones that snake from nearly every teen's ears during most hours of the day. But according to the survey, in which adolescents were asked about their exposure to loud noises, there was not a significant rise in this exposure in the two time periods. So music, say the authors, may not be the only thing that can be damaging kids ears. Diet and nutrition, as well as exposure to toxins, might be factors. Living in poverty is also associated with greater risk of hearing loss among youngsters, as children in lower-income families may not be getting adequate nutrition to support proper development of the auditory system monster beats.相关的主题文章： Are iPods Behind Rising Teen Hearing Loss