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Hearing problems could be a warning sign for memory loss in older people

People with hearing loss caused by the brain’s inability to hear sound are twice as likely to suffer forgetfulness, according to a study.

health Updated: Feb 28, 2018 16:42 IST
Indo-Asian News Agency, Loss Angeles
Hearing problems,Hearing Loss,Memory Loss
The researchers found that people with central hearing loss were twice as likely to have mild cognitive impairment as people who had no hearing loss.(Shutterstock)

Hearing loss is one of the most common disabilities in elderly people, affecting about one-third of people over age 65. And according to a new study, hearing loss and memory loss might go hand in hand.

Elderly people with a certain type of hearing loss may be more likely to also have memory loss and thinking problems called mild cognitive impairment, says the study, presented at the American Academy of Neurology’s 70th Annual Meeting in Los Angeles. It looked at people with peripheral age-related hearing loss, which is caused by problems in how the inner ear and hearing nerves function and leads to people not being able to hear.

It also looked at central age-related hearing loss, which is caused by problems in the brain’s ability to process sound and leads people to say, “I can hear, but I can’t understand.”

Elderly people with a certain type of hearing loss may be more likely to also have memory loss and thinking problems called mild cognitive impairment. ( Shutterstock )

The researchers found that people with central hearing loss were twice as likely to have mild cognitive impairment as people who had no hearing loss.

“These preliminary results suggest that central hearing loss may share the same progressive loss of functioning in brain cells that occurs in cognitive decline, rather than the sensory deprivation that happens with peripheral hearing loss,” said study author Rodolfo Sardone from the University of Bari in Italy.

“It’s a problem with perception. Tests of hearing perception should be given to people who are older than 65 and also to people with cognitive impairment,” Sardone added.

The study involved 1,604 participants of the Great Age Study, a population-based study conducted in the south of Italy, with an average age of 75, whose hearing and thinking and memory skills were tested.

Of the participants, 26% had peripheral hearing loss and 12% had central hearing loss, 33% were diagnosed with mild cognitive impairment.

Of the 192 people with central hearing loss, 144 people, or 75%, had mild cognitive impairment.

In contrast, people with peripheral hearing loss were no more likely to have mild cognitive impairment than people with no hearing problems.

The researchers also found that people who had lower scores on a test that measured how well they understood speech also had lower scores on a test of thinking and memory skills.

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First Published: Feb 28, 2018 16:39 IST