Noise May Lead To Tumor
Years of repeated exposure to
loud noise increases the risk of
developing a non-cancerous
tumor that could cause hearing
loss, according to research. "It
doesn't matter if the noise comes
from years of on-the-job
exposure or from a source that
isn't job-related," said Colin
Edwards, a doctoral student in
the School of Public Health at
Ohio State University.
In the current study, people who
were repeatedly exposed to loud
noise over the span of several
years were on average
one-and-a-half times as likely to
develop this type of tumor
compared to people who weren't
exposed to such noise on a
regular basis. The tumor, called
acoustic neuroma
(http://www.anausa.org), grows
slowly and symptoms typically
become noticeable around age
50 or older. Of the 146 people
with acoustic neuroma in this
study, nearly two out of three
were 50 or older.
An acoustic neuroma tumor
slowly presses the cranial nerve
that is responsible for sensing
sound and helping with balance.
Symptoms include hearing loss
and a constant ringing in the
ears, or tinnitus
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