» The Link Between Hearing Loss and Cognitive Decline

The Link Between Hearing Loss and Cognitive Decline

Audiologists and other hearing specialists have assumed the link between hearing health and cognitive health for years. While it’s well-known that untreated hearing loss can lead to isolation, depression, and reduced quality of life, it was not until recent years that research began to focus more on the connection between cognitive decline and untreated hearing loss.  Hearing loss is often considered an isolated sensory impairment, however, we now have convincing evidence that early intervention for hearing loss can reduce one’s risk of cognitive decline and even dementia later in life.


The Connection

Cognitive Load: When hearing is compromised, the brain must work harder to process sound. This increased cognitive load can lead to mental fatigue and reduce cognitive resources available for other essential tasks, such as memory and problem-solving.

Social Isolation: Hearing loss can lead to social isolation, as individuals may withdraw from social activities due to communication difficulties. This isolation can contribute to feelings of loneliness and depression, both of which are known risk factors for cognitive decline.

Brain Shrinkage: Studies have found that untreated hearing loss is associated with accelerated brain atrophy, particularly in areas responsible for memory and processing sound. This shrinkage may contribute to cognitive decline over time.

Decreased Stimulation: The brain thrives on stimulation. When hearing deteriorates, the brain receives less auditory input, leading to a reduced level of neural activity. This lack of stimulation can impact brain plasticity and cognitive functioning.




The Importance of Early Intervention

Improved Communication: Treating hearing loss with hearing aids or other assistive devices can significantly enhance communication abilities. This, in turn, helps individuals stay socially engaged, reducing the risk of isolation and depression.

Cognitive Preservation: By reducing the cognitive load associated with untreated hearing loss, individuals can preserve their cognitive resources for other essential tasks, potentially mitigating cognitive decline.

Enhanced Quality of Life: Addressing hearing loss can lead to an improved overall quality of life. Individuals can enjoy richer social interactions, participate in activities they love, and experience less frustration and anxiety in daily life.

Risk Reduction: Early intervention may help reduce the risk of cognitive decline and dementia in later life. By maintaining an active and engaged brain, individuals may be better equipped to stave off cognitive impairments.



Recognizing the signs of hearing loss and seeking professional help from a registered audiologist is the first step. Unfortunately, many individuals hesitate to address their hearing difficulties due to various reasons, including stigma, denial, and a lack of awareness about available affordable solutions. As an audiologist, my mission is to break down these barriers and educate patients about the benefits of early intervention. By encouraging patients to seek help early, we can minimize the impacts of hearing loss and empower individuals to lead more engaging and fulfilling lives.

If you or a loved one is showing signs of hearing loss schedule an appointment today for a hearing assessment or a consultation on treatment options.


Blog Author

Lyndsay Bozec


Lyndsay is a passionate advocate for hearing health awareness and hearing preservation. Over the years she has delivered various hearing health presentations and hearing aid workshops for caregiver workshops across HRM.

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