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Noise-induced hearing loss (NIHL) is a hearing impairment resulting from exposure to loud sound. People may have a loss of perception of a narrow range of frequencies or impaired perception of sound including sensitivity to sound or ringing in the ears . [ 1 ]
Adults, as well as children, experience hearing loss if the sound intensity is loud enough. According to the NIH, data from 2005-2006 estimated that 17% of teenagers had noise-induced hearing loss.
Noise-induced hearing loss is a permanent shift in pure-tone thresholds, resulting in sensorineural hearing loss. The severity of a threshold shift is dependent on duration and severity of noise exposure. Noise-induced threshold shifts are seen as a notch on an audiogram from 3000 to 6000 Hz, but most often at 4000 Hz. [16]
Both constant exposure to loud sounds (85 dB(A) or above) and one-time exposure to extremely loud sounds (120 dB(A) or above) may cause permanent hearing loss. [9] Noise-induced hearing loss (NIHL) typically manifests as elevated hearing thresholds (i.e. less sensitivity or muting) between 3000 and 6000 Hz, centred at 4000 Hz. As noise damage ...
This type of hearing loss is preventable, so if you know you will be exposed to loud noise, wear earplugs or other hearing protection. If you work in a noisy environment, wear appropriate hearing ...
The symptoms of hearing loss in babies and children, however, are slightly different, and can be difficult to catch. For instance, a baby with hearing loss may not startle at loud noises.