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SOURCE:
Oticon
A groundbreaking study determined hearing aids reduce cognitive decline. The extensive research spanned 25 years and included over 3,000 people. Find out how much hearing aids help.
SOMERSET, N.J. -- It is well-established that untreated hearing loss can lead to an acceleration of cognitive problems. An important study in the Journal of the American Geriatrics Society is the first to show that wearing hearing aids reduces cognitive decline associated with hearing loss.
3,000 Adults, 25 Years
Cognitive Decline + Hearing Aids
Researchers compared the trajectory of cognitive decline among older adults who were using hearing aids and those who were not. The study found no difference in the rate of cognitive decline between a control group of people with no reported hearing loss and people with hearing loss who used hearing aids. By contrast, hearing loss was significantly associated with lower baseline scores on the Mini-Mental State Examination (MMSE), a well-recognized test of cognitive function, during the 25-year follow-up period, independent of age, sex and education.The study indicates that people with hearing loss who wear hearing aids have the same risk for age-related cognitive decline as people without hearing loss,” says Donald Schum, PhD, Vice President of Audiology and Professional Practice for Oticon, Inc. “But cognitive decline is accelerated for the people who have hearing loss and don’t use hearing aids. With this study, we are seeing for the first time evidence that hearing aids are a prevention against accelerated cognitive decline in later years. That’s a powerful motivator for the more than 75% of people with hearing loss who could benefit from hearing aids but are reluctant to address their hearing health.”
Improving Social Interaction and Other Cognitively Stimulating Activities
A number of studies have shown correlations between hearing loss and greater risk of cognitive decline in older adults, including a pair of studies out of Johns Hopkins that found hearing loss is associated with accelerated cognitive decline and possibly also with the onset of dementia in older adults. The vast majority of scientists in the area have agreed that cognitive decline is likely related to the lack of social interaction that older adults have because of their hearing loss. The assumption has been that if people use hearing aids and thus become socially active again or are able to maintain an appropriate level of social activity then they would decrease their risk of a more rapid decline in cognitive skills. The new study appears to corroborate those assumptions.Link to Dementia
The link to dementia is more complex. One of the most likely explanations is that the cognitive decline associated with hearing loss adds to the decline due to Alzheimer’s disease and thereby leads to crossing the threshold for the diagnosis of dementia at an early point in time.Technology
“The transition from sound to meaning happens in the brain,” explains Dr. Schum. “When hearing is compromised, such as with hearing loss, the sound signal that the brain is accustomed to processing is different and it takes more effort to fill in the blanks. This is why hearing loss can be so tiring and can drain the mental energy people need for everyday activities. People may respond by withdrawing socially because it’s just too exhausting to try to keep up. Social isolation and the resulting depression and health issues have long been recognized as increased risk factors for dementia and Alzheimer’s disease.”Hearing Care
Hearing loss is the most common chronic health condition affecting older adults. The PAQUID study underscores the importance of addressing the challenges of under-diagnosis and under-treatment of hearing loss.According to the National Institute on Deafness and Other Communication Disorders, one in eight people in the US (13 percent, or 30 million) aged 12 years or older has hearing loss in both ears. Among adults aged 70 and older with hearing loss who could benefit from hearing aids, fewer than one in three (30 percent) has ever used them. Fewer adults aged 20 to 69 (approximately 16 percent) who could benefit from wearing hearing aids have ever used them. Even among people who eventually get treatment for hearing loss, many delay seeking help for an average of 7 to 10 years from the time they could benefit from hearing aids.
“This study should be a wake-up call for people who are considering doing something about treating their hearing loss but have been delaying,” says Dr. Schum. “It’s not just about hearing well today, it’s about the long-term effects of untreated hearing loss.”
MORE INFORMATION:
For more information about hearing health, hearing loss and BrainHearing technology, visit brainhearing.com.
These findings add to a large body of evidence showing that technologies used in hearing aids must be designed to minimize the mental effort that hearing loss leads to when listening to speech in background noise. For almost 20 years, Oticon researchers at the world renowned Eriksholm research center have focused on BrainHearing™ technology, an approach that carefully processes the speech signal so it is presented to the person’s brain as clearly and accurately as possible - the way the brain is best able to understand it. With more sound information, the brain doesn’t have to work as hard to understand what is being said. The result is a clearer, more effortless listening experience. For people who wear hearing aids, this means less demanding mental processing throughout the day so they can engage more actively in everyday life.
The early findings of the study were shared by Professor Amieva at a professional conference sponsored by Oticon, Inc., attended by more than 1000 hearing care professionals.
For more information about hearing health, hearing loss and BrainHearing technology, visit brainhearing.com.
These findings add to a large body of evidence showing that technologies used in hearing aids must be designed to minimize the mental effort that hearing loss leads to when listening to speech in background noise. For almost 20 years, Oticon researchers at the world renowned Eriksholm research center have focused on BrainHearing™ technology, an approach that carefully processes the speech signal so it is presented to the person’s brain as clearly and accurately as possible - the way the brain is best able to understand it. With more sound information, the brain doesn’t have to work as hard to understand what is being said. The result is a clearer, more effortless listening experience. For people who wear hearing aids, this means less demanding mental processing throughout the day so they can engage more actively in everyday life.
The early findings of the study were shared by Professor Amieva at a professional conference sponsored by Oticon, Inc., attended by more than 1000 hearing care professionals.
