Hearing Loss May Increase Dementia Risk

Research shows a strong connection between hearing loss and cognitive decline, with studies linking untreated hearing loss to an increased risk of dementia1 and memory issues. Let’s explore why hearing plays a crucial role in brain health.

Hearing Loss Taxes Your Brain’s Resources

With hearing loss, the brain has to work harder to process sound, leading to cognitive overload. This increased effort can divert mental resources from other functions like memory, problem-solving, and concentration. Over time, this excessive cognitive load may contribute to brain atrophy and increase the risk of dementia.

The Science Behind Hearing Loss and Cognitive Decline

Research has repeatedly demonstrated a strong correlation between hearing loss and cognitive impairment. A landmark study1 published in The Lancet found that untreated hearing loss is one of the most significant modifiable risk factors for dementia. The study highlights that individuals with untreated hearing loss are at a much greater risk of developing dementia than those with normal hearing.

One of the key reasons for this link is the brain’s need for auditory input. When sound signals diminish due to hearing loss, the areas of the brain responsible for processing sound start to weaken. This deterioration can lead to cognitive deficits and structural changes in the brain, accelerating the onset of neurodegenerative diseases like Alzheimer’s.

Can Hearing Aids Reduce Dementia Risk?

Studies show that early intervention with hearing aids may help2 protect cognitive function over time. Properly fit hearing aids may help slow the rate of cognitive decline by up to 48%6 in older adults at higher risk. In addition to improving quality of life, there is growing evidence that for many individuals at higher risk of dementia, prioritizing hearing health may also support long-term brain health!

The link between hearing loss and cognitive decline is well-established, and early intervention matters. Don’t let hearing loss steal brainpower that helps you think, focus, and remember. Diagnosing and treating hearing loss early is more important than ever.

Contact Rametta Audiology & Hearing Aid Center at (724) 389-2057 to schedule a hearing evaluation today.

1 Lin FR, et al. Hearing Loss and Incident Dementia. JAMA Neurology. 2011;68(2):214–220. doi:10.1001/archneurol.2010.362 https://pubmed.ncbi.nlm.nih.gov/21320988/ Accessed 2/12/25

2 Lin FR et al. Hearing Intervention Versus Health Education Control to Reduce Cognitive Decline in Older Adults With Hearing Loss in the USA (ACHIEVE): a Multicentre, Randomised Controlled Trial. The Lancet. 2023; 10404:786–797. https://www.achievestudy.org/key-findings Accessed 2/12/25