Hearing loss is independently associated with accelerated cognitive decline and incident cognitive impairment in community-dwelling older adults. Further studies are needed to investigate what the mechanistic basis of this association is and whether hearing rehabilitative interventions could affect cognitive decline.

Hearing Aids Slow Cognitive Decline in People at High Risk by National Institutes of Health (NIH)

Hearing aids reduced the rate of cognitive decline in older adults at high risk of dementia by almost 50% over a three-year period.