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Turn down the iPod to save your hearing
Date:12/28/2011

s in both quiet and noisy environments. The measured volume levels were used to calculate the potential risk to hearing according to damage risk criteria laid out by industrial health and safety regulations.

The study's findings are worrisome, says Prof. Muchnik. Eighty percent of teens use their PLDs regularly, with 21 percent listening from one to four hours daily, and eight percent listening more than four hours consecutively. Taken together with the acoustic measurement results, the data indicate that a quarter of the participants are at severe risk for hearing loss.

Dangerous decibels

Currently, industry-related health and safety regulations are the only benchmark for measuring the harm caused by continuous exposure to high volume noise. But there is a real need for additional music risk criteria in order to prevent music-induced hearing loss, Prof. Muchnik says. In the meantime, she recommends that manufacturers adopt the European standards that limit the output of PLDs to 100 decibels. Currently, maximum decibel levels can differ from model to model, but some can go up to 129 decibels.

Steps can also be taken by schools and parents, she says. Some school boards are developing programs to increase awareness of hearing health, such as the "Dangerous Decibels" program in Oregon schools, which provides early education on the subject. Teens could also choose over-the-ear headphones instead of the ear buds that commonly come with an iPod.

In the near future, the researchers will focus on the music listening habits of younger children, including pre-teens, and the development of advanced technological solutions to enable the safe use of PLDs.


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Contact: George Hunka
ghunka@aftau.org
212-742-9070
American Friends of Tel Aviv University
Source:Eurekalert

Page: 1 2

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