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Science News for November 19, 1998


Researchers Find Out How The Bladder Responds To Infection

Researchers found that when E. coli attaches to the bladder lining, it triggers a natural defense mechanism where bladder cells commit suicide and slough off, but some bacteria can avoid being removed by invading deeper tissue. This could explain why patients experience recurrent bladder infections despite antibiotic treatment.

SourceWashU Medicine·JournalScience·DateNov 19, 1998

Tolerance For Loud Noises Decreases With Age

Researchers found that senior citizens rated rock music much higher on a loudness scale than younger people. As people age, their tolerance for loudness decreases due to common hearing loss conditions like presbycusis, which distorts certain sounds and makes low frequencies more noticeable.

SourceOhio University·JournalPerceptual and Motor Skills·DateNov 19, 1998