Recent studies have found that the effects of hearing loss go beyond daily frustration, social isolation, and the inability to distinguish speech or enjoy music. Hearing loss is also linked to a decline in cognition and an increased risk of dementia. June is Alzheimer’s and Brain Awareness Month, so now is the perfect time to turn some attention to the effects of good hearing on brain health.
Neuroplasticity: The link between hearing loss and cognitive decline
We tend to think of hearing as something we do with our ears, but it is actually the brain that processes the sounds we hear. Our ears carry electrical signals to the brain, which then turn those signals into sounds we recognize. When we experience hearing loss, the area of our brain that interprets those electrical signals becomes underused, and begins to decline.
Previously, it was believed that our brains remained mostly unchanged throughout our adult lives. We now know, however, that the brain reorganizes itself when it needs to adapt, a phenomenon known as neuroplasticity. This reorganization begins even in the early stages of hearing loss, where other areas of the brain that are responsible for higher cognitive function attempt to compensate for the loss of hearing. In the elderly adult, especially, this overworks areas of the brain needed for high-level functioning, which may explain why hearing loss is so closely correlated with dementia.
Early Intervention: Protecting brain function
The National Institute on Deafness and Other Communication Disorders estimates that one-third of adults aged 65-74, and nearly one-half of those over 75, have trouble hearing. Although we tend to think of hearing loss affecting primarily older adults, hearing loss can occur at any age, with 65% of people with hearing loss being below retirement age. Yet, less than 25% of those who need hearing aids get them right away, waiting an average of 7 years, in which time preventative cognitive decline may be occurring.
If you believe you or a loved one are experiencing hearing loss, schedule a hearing test with a licensed audiologist. Early intervention can help preserve cognitive function and lower the risk of dementia.
At Better Hearing Systems of Northwest Louisiana, we are committed to comprehensive hearing care through state-of-the-art testing and fitting equipment. We offer cutting-edge hearing aids, hearing devices, and premium hearing accessories. To learn more about what Better Hearing Systems can do for you, visit our website or call (318) 309-4727 today to schedule a free hearing consultation.
