Communication
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Both presbycusis and tinnitus deal with hearing. Presbycusis is a loss of hearing, which usually occurs as an individual gets older. Tinnitus is a symptom of presbycusis in which an individual may hear ringing, roaring or hissing sounds in one or both ears.
<span>Hello Matthancan, the central nervous system and the peripheral nervous system are two parts of a </span><span>nervous system.</span>
