Current users of portable MP3 and iPod crystal hear more sounds from the past ... "Walkman" and even blaring for several hours, Which according to research by Israeli scientists can seriously damage the hearing of young people.
The researchers, led by kathigitiTsava Moutsnik School of Medicine University of Tel Aviv, which published the study in the International Journal on audiology issues «International Journal of Audiology», estimate that one in four teenagers at risk of premature hearing loss due to modern fashion of continuous listening of portable digital devices at high volume.
The researchers studied the acoustic patterns of young people making the relevant acoustical measurements, and concluded that the new fashion is clearly harmful consequences. "In ten or twenty years will be too late when you realize that a whole generation of young people suffer from hearing problems much earlier than expected due to normal aging," said characteristically Moutsnik. According to Israeli scientists, hearing loss, caused by continuous exposure to loud noise or music is a slow and gradual process. People are not usually able to understand the damage they cause to themselves before they take years. Those teenagers make great use of the MP3 today may find that they have trouble hearing already after 30 or 40, ie much earlier than previous generations. The researchers focused their investigation on some 300 young people aged 13 to 17 years. As shown by the survey, eight out of ten teenagers regularly use for listening to music on portable digital devices, one in five hears one to four hours a day and almost one in ten over four consecutive hours. Overall, scientists estimate that about one in four people (25%) faces a serious risk of premature loss of hearing. All over the world regulations limit is the maximum output of MP3 devices to 100 decibels, but some models arriving and 129. Scientists recommend that public authorities, teachers, parents and of course young people themselves to take more seriously the issue of potential damage to hearing. Among other things, larger headphones that do not enter into the cavity of the ear, but the blanket outside, considered safer. Also, the less frequent listening at lower volume are important precautionary measures.
