Monday, January 31, 2011

1 hour listening to MP3 players can damage hearing

1 hour listening to MP3 players can damage hearing

Only 1 hour to listen to MP3 music players can damage hearing, as claimed by the scientists. MP3 players cause temporary changes in hearing sensitivity which can cause danger to the long term, according to a recent study.

These findings indicate excessive stimulation of hair cells in the ear that occurs even at different volumes for short periods of time. This study examines nearly 60 young children conducted by researchers at Ghent University, Belgium, published in the Archives of Otolaryngology - Head & Neck Surgery Journal. This research was carried out following a previous warning from the doctors for the users of MP3 music player with a high volume that use earphones that fit with the ear canal can cause hearing loss.

In the current study, 21 people aged 19-28 years exposed to the music-pop and rock music using an MP3 player on a different volume for 1 hour. The second group consisted of 28 men and women are a control group not exposed to MP3 music.

Hearing Tests performed before and after exposure, which found that the changes in threshold or significant emission observed among almost every session in the group exposed to music compared with other groups. “

Lead researcher Hannah Kempner said "It is known that excessive noise can cause hearing loss. Exposure to excessive noise can cause metabolic and mechanical effects resulting from changes in the structural elements of the inner ear that contains auditory sensory cells, or 'cells hair '. Damage to the main focus on hair cells of the outside are more prone to excessive stimulation than the hair cells inside. Given the decline in hearing sensitivity after hearing the MP3 music player, this device is potentially dangerous. Further research is needed to evaluate long-term risk of cumulative noise exposure. "

The European Commission has warned that more than 10% of those aged 30 years will wear hearing devices in the next decade because they listen to music too loud through headphones. Surveys show more than 90% of young people in Europe and the United States using an MP3 player, often for several hours during the day with a maximum volume. Experts recommend hearing 60/60 rule - listen to an MP3 player no more than 60 minutes with 60% of maximum volume.
Alarm among health officials and the security of the European Union to produce a plan to ensure all MP3 players have the same maximum volume is 85 decibels (dB) - although the users often do not heed their own risk.

Emma Harrison, RNID Director of Public Engagement saying "RNID research shows that 66% of music player users listen to music louder than 85 decibels, which according to WHO, it can cause permanent damage from time to time. RNID will continue to cooperate with the EU in raise awareness of this problem when they develop their rules regarding personal music player. Many people regularly use personal music players and often do not realize that they are putting their hearing at risk. It is important that manufacturers and legislators to support this plan and work together to protect hearing generation of music lovers. "

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