Noise-induced hearing loss is a major hazard in many workplaces and in society. The National Institute for Occupational Safety and Health estimates that more than 30 million workers (almost 1 in 10) are exposed to unsafe noise levels on the job. Helicopter emergency medical services crews work in an environment in which exposure to aviation noise makes the issue of hearing loss and prevention strategies salient. Applying the Occupational Safety and Health Administration standard for a regulated hearing conservation program through controlling noise exposure will benefit helicopter emergency medical services professionals.
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| http://dx.doi.org/10.1016/j.amj.2004.12.005 | DOI Listing |
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Phantom perceptions like tinnitus occur without any identifiable environmental or bodily source. The mechanisms and key drivers behind tinnitus are poorly understood. The dominant framework, suggesting that tinnitus results from neural hyperactivity in the auditory pathway following hearing damage, has been difficult to investigate in humans and has reached explanatory limits.
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