Noise Induced Hearing Loss | Loud Noise and Hearing Loss
Noise induced hearing loss is hearing loss that is caused by exposure to loud noise. Noise induced hearing loss is one of the most common causes of hearing loss and is entirely preventable. In most cases, noise induced hearing loss is permanent.
How does loud noise cause hearing loss?
Loud noise causes hearing loss by damaging the hair cells of the inner ear. The hair cells of the inner ear are responsible for converting sound vibrations into electrical signals that the brain interprets as sound. When you are exposed to loud noise, the hair cells can be damaged. If the damage is mild, the hair cells may recover. However, if the damage is severe, the hair cells may die and the hearing loss will be permanent.
What sounds cause hearing loss?
Generally, sounds that exceed 85 decibels (dB) for prolonged periods of time can cause hearing loss. Some examples of sounds that can cause hearing loss include: concerts (110 dB), power tools (90-100 dB), lawn mowers (90 dB), and firearms (150-190 dB). The exposure duration is also important. For example, 8 hours of exposure to 90 dB of sound can cause hearing loss.
How can you prevent noise induced hearing loss?
The most effective way to prevent noise induced hearing loss is to avoid exposure to loud noise. If you cannot avoid loud noise, then the use of hearing protection is important. Hearing protection includes foam earplugs, custom earplugs, and earmuffs. If you are exposed to loud noise on a regular basis, it is a good idea to wear hearing protection.
