As people age, accumulated exposure to noise and other factors may lead to deafness or hearing impairment.
随着年龄的增长，长期接触噪音或其他因素，久而久之就可能导致耳聋或听力障碍。
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Objective: To assess the dose response relationship between the prevalence rate of noise deafness and the noise exposure.
目的：探讨五金工业噪声性耳聋患病率与噪声接触剂量之间的关系。
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Other famous musicians who suffer from hearing problems such as The Who's Pete Townshend has partial deafness and tinnitus which is believed to be the result of extensive exposure to loud music.