Study: How many people have Tinnitus? What causes ringing in ears? - USA TODAY

Researchers estimate about 14% of adults experience tinnitus while 2% experience a severe form of it.

Tinnitus, commonly described as a ringing in the ears, may affect about 749 million people around the world, according to new research based on about 50 years of data. The study, published this week… [+4406 chars]

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