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Why do Some People Get Tinnitus But Other People Don’t?
Interesting research offers a possible explanation as to why, even when exposed to the same external harmful noise stimulus, some individuals will develop tinnitus and other individuals will not. Extrapolating findings from research on animals may reveal why some people develop tinnitus while others do not.
Animals were exposed to a noise stimulus with the intention of destroying their hearing hair cells:
All nine noise-exposed rats showed similar patterns of severe hair cell loss at high- and mid-frequency regions in the exposed ear.
Subsequently, some of the rats expressed a protein in nervous system cells called GAP-43:
Eight of the nine showed strong up-regulation … Continue Reading