1. Study by Lily Francis on hearing aids and dementia risk.
2. 61% lower risk of dementia in under 70s using hearing aids.
3. Involved 2,953 patients from the Framingham Heart Study.
4. Followed patients for up to 20 years.
5. Only 17% of those with moderate to severe hearing loss used hearing aids.
6. Highlights importance of early intervention for hearing loss.
7. No significant effect for those aged 70 and older.

Source: JAMA Neurology