Loud noise contributes to presbycusis and tinnitus.
强烈的噪音会导致老年性耳聋和耳鸣。
In age-related hearing loss (presbycusis), changes in the inner ear that occur as you grow older cause a gradual but steady hearing loss.
对于年龄引起的听觉损耗（老年性耳聋）来说，随着年龄增长，内耳逐渐发生异变从而逐渐引起听觉一点一点下降。
Methods The Red Cell Deformability (RCD)and the levels of the blood plasma SOD and MDA in 68 patients with presbycusis and in 50 healthy old people were measured.
方法测定6 8例老年性耳聋病人和5 0例健康老年人的血浆超氧化物歧化酶（SOD）和脂质过氧化产物丙二醛（MDA）的水平及血液红细胞变形性。
Methods The Red Cell Deformability (RCD)and the levels of the blood plasma SOD and MDA in 68 patients with presbycusis and in 50 healthy old people were measured.
方法测定6 8例老年性耳聋病人和5 0例健康老年人的血浆超氧化物歧化酶（SOD）和脂质过氧化产物丙二醛（MDA）的水平及血液红细胞变形性。
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