Medical professionals have identified a relationship between hearing loss and dementia. Let’s review some basic facts first. The impact of audiology and memory care will exacerbate with an aging population. By 2050, the number of people older than 60 years will double, comprising 21 percent of the global population. As a result, those living with dementia will triple and cost nearly $2 trillion.
Though the exact association between the two conditions has not been identified, recent studies have proposed several theories. First, there is a possibility that hearing loss and dementia share a common cause. Thus, hearing loss and cognitive decline occur in parallel. As the brain degrades, so does hearing. But statistically, that’s not proven true. A second theory proposes that hearing loss places an increased demand on cognitive resources. Thus, information degradation occurs as resources are removed from cognitive tasks to support hearing. In such a scenario, listening causes the brain to work harder, burning out. The last theory proposes that a person with hearing impairment withdraws from social engagement and, therefore, experiences less cognitive function to interact with their environment.
The theory gaining the most traction is the second: that hearing loss places an increased demand on cognitive resources. Individuals who have untreated hearing loss (even mild untreated hearing loss) find social participation requires more brainpower, which drains mental effort. This process makes the brain more likely to develop dementia.
So, why am I posting this information on a blog? Well, I am one of those impacted by hearing loss. Additionally, I am 62 years old. Combining those two statistics with watching my father suffer from hearing loss made me want to get and use hearing aids. Yet, the years-long search for the perfect hearing aid was frustrating.
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