The hidden link
By Rob Shilot, Hearing Care Practitioner
The danger of untreated hearing loss is not only what you stop hearing. It is what can happen when the brain goes years without receiving a complete speech signal.
For many adults, hearing loss begins in the higher frequencies. As sensory cells in the inner ear become damaged by aging, noise, genetics, medications, and other health factors, speech loses clarity before it loses volume. Softer consonants such as “s,” “f,” “th,” “k,” and “t” begin to disappear. A person may hear a voice but miss enough of the word to misunderstand it, according to the National Institute on Deafness and Other Communication Disorders.
Because this change happens gradually, people adapt without realizing it. They turn up the television, avoid noisy rooms, depend on a spouse, or assume everyone is mumbling. Meanwhile, the brain is working harder to fill in what it no longer hears clearly.
Over time, this can lead to auditory deprivation.
Auditory Deprivation and Cognitive Load
When the brain goes without sounds in speech, it may become less efficient at recognizing and interpreting them. Word understanding can decline, and making sound louder may not immediately restore the clarity that has been lost. The longer treatment is delayed, the more time and consistent use the brain may need to adjust to hearing those sounds again.
This also creates cognitive overload. Mental energy that should be available for memory, comprehension, and participation is spent trying to solve an incomplete conversation.
Johns Hopkins led a landmark study showing that dementia risk increased with the severity of hearing loss. People with mild loss had nearly twice the risk, those with moderate loss had three times the risk, and those with severe loss had nearly five times the risk, according to a “Hearing Loss and Incident Dementia,” report in the Archives of Neurology, 2011.
The Lancet Commission later identified hearing loss as the leading modifiable risk factor for dementia in its 2020 report by the Lancet Commission.
Prescriptive amplification can address both problems. Properly fit hearing aids restore access to the frequencies where hearing has declined. This gives the brain a more complete signal, reduces listening effort, and keeps the auditory system stimulated, according to the commission.
Why Early Hearing Testing Matters
If you are 65 or older, establish a hearing baseline now. A test does not mean you need hearing aids. It tells you where you stand and allows changes to be caught before years of missed sounds permanently affect speech understanding.
Beltone offers hearing evaluations at no charge, as well as many other reputable clinics do. Get tested early today. Waiting may cost you more than just your hearing.
