Do you have trouble hearing people in a noisy restaurant? As you age — especially if youve been exposed to frequent loud noises — you might have presbycusis, a type of gradual hearing loss caused by changes to or the death of hair cells in the cochlea, in( your inner ear). Those are the cells that translate sound vibrations into brain signals. The cochlea contains only 15,000 of these hair cells, and they dont regenerate When they die, it becomes difficult for people to recognize certain sounds or to hear speech clearly. Difficulty hearing in noisy places is often one of the first noticeable signs of hearing loss. Thats because filtering out background noise is a fairly complex process that requires precise auditory input from both ears. Quiet conversations arent quite so taxing.
Posted on: Mon, 11 Aug 2014 22:20:26 +0000
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