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What You Need to Know About Noise

Even everyday sounds affect hearing over time

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    Protect Those Precious Ears

    En español l The racket in our everyday lives — from the leaf blower in the yard to the screaming of a siren in the street — is a main culprit in NIHL (noise-induced hearing loss). The good news is that some of the damage is preventable.

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    What Causes NIHL?

    Hearing loss can be caused by a single exposure to an intense noise or by repeated exposure to loud sounds over time. Any sound at or above 85 decibels can be harmful. The highest peak decibel level ever recorded during a sporting event at a stadium was 142.2 decibels.

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    Who Is Affected?

    Noise can damage hearing in anyone from children to adults. About 15 percent of Americans between the ages of 20 and 69 have hearing loss that may have been caused by exposure to noise at work or in leisure activities.

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    What Are the Warning Signs?

    The signs may be immediate (you suddenly can’t hear after a loud burst of noise) or gradual. Over time you may find you can’t hear people talking in a noisy restaurant or you need to turn the sound up on the TV.

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    Can NIHL Be Reversed?

    No. Hair cells that carry sound within our ears are damaged and can eventually die (this micrography image shows heatlhy cells), causing the auditory system to work less efficiently.

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    How Can NIHL Be Prevented?

    Don’t ignore the fact that any noise at or above 85 decibels can cause damage, and be sure your friends, family and colleagues are also aware. If you participate in loud activities such as shooting, woodworking, even attending a football game, protect your ears with earplugs or other activity-specific devices sold at hardware and sporting goods stores.

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    What Research Is Being Done?

    Researchers have identified some of the genes important for hair cell development and are using this knowledge to try to develop treatments for hearing loss.

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