Even moderate noise may harm hearing | Science News

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Even moderate noise may harm hearing

Chronic, low-level sound exposure causes deficits in rats

5:56pm, May 15, 2012

Constant low-level noise might cause hearing problems, a new study in rats finds. The discovery, published online May 15 in Nature Communications, suggests that extended exposure to noise at levels usually deemed safe for human ears could actually impair sound perception.

The findings are “definitely a warning flag,” says study coauthor Michael Merzenich, an integrative neuroscientist at the University of California, San Francisco. He adds that it will be important to find out whether people employed at factories where continuous low-intensity noise is emitted throughout the workday exp

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