Friday, September 06, 2019

Adults who get hearing aid, less prone to dementia, depression and anxiety

Hearing aid is not only limited to help adults get a better sound, but researchers have found another big advantage of the device.

A new study has found that old people with a hearing aid who are newly diagnosed for hearing loss are at a reduced risk of being diagnosed with dementia, anxiety or depression for the first time over the next 3 years.


These adults are also less prone to suffering fall-related injuries, than those who leave their hearing loss uncorrected.


Researchers used data from nearly 115,000 people over the age of 66 with hearing loss and insurance coverage through  Medicare between 2008-2016.


Though hearing aids can't be said to prevent these conditions, a delay in the onset of dementia, depression and anxiety, and the risk of serious falls, could be significant both for the patient and for the costs to the Medicare system, said the study's lead author.


Researchers looked at anonymous insurance data to perform the study and the data for each person with hearing loss one year before their diagnosis and 3 years after, so they could see only newly diagnosed dementia, depression, anxiety and fall injuries.


The study shows that men with hearing loss were more likely to receive a hearing aid-13.3% compared with 11.3 % of women. 


When the researchers looked at the path that patients who received hearing aids took over 3 years, compared with those who didn't get the devices, significant differences emerged.


In all, the relative risk of being diagnosed with dementia, including Alzheimer's disease, within 3 years of a hearing loss diagnosis was 18 % lower for hearing aid users.


The risk of being diagnosed with depression ir anxiety by the end of 3 years was 11% lower for hearing aid losers, and the risk of being treated for fall-related injuries was 13% lower.


The reasons for this are complicated and can include loss of social interaction, loss of independence, loss of balance and less stimulation to the brain.


Some researchers also believe that the loss of nerve impulses from the ear to the brain, and loss of cognitive ability leading to dementia, could be part of the same aging process.


Correcting hearing loss is an intervention that has evidence behind it, and we hope our research will help clinicians and people with hearing loss understand the potential association between getting a hearing aid and other aspects said the lead researcher.


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