Hearing health linked to dementia risk amid service underuse

Recent data and clinical studies highlight the complex relationship between hearing health and cognitive decline. In Australia, more than 500,000 individuals with active hearing vouchers through the federal government’s Hearing Services Program did not access services during the 2025-2026 financial year. Experts note that untreated hearing loss is a modifiable risk factor for dementia, social isolation, and depression, yet many eligible Australians remain unaware of the available benefits.

In a separate clinical context, a randomized trial published in JAMA Neurology by researchers at Shanghai Ninth People's Hospital found that providing hearing aids to older adults with mild cognitive impairment did not significantly reduce the rate of dementia-level impairment over a 24-month period. While the study suggests hearing aids may not directly prevent dementia in those already experiencing memory issues, medical experts emphasize that hearing care remains vital for social connectivity and daily functioning. In the United States, the FDA estimates that nearly 30 million adults suffer from hearing loss, though only about 20% of those who could benefit seek assistance.