The protective effect of the diet was strongest in the highest-risk group, those homozygous for the APOE4 gene variant, suggesting that diet may help offset genetic risk.
Risk of dementia was more than 60% lower among adults aged 60 to 69 years with hearing loss who used hearing aids in the first study to highlight early intervention.
Insulin delivered via nasal spray in this first-in-human PET imaging study was observed in 11 key brain areas relevant to cognitive decline, validating a new research avenue.