Neurology Study Links 3 Midlife Risk Factors to 12.6 More Dementia-Free Years
Updated
Updated · AOL · Aug 14
Neurology Study Links 3 Midlife Risk Factors to 12.6 More Dementia-Free Years
3 articles · Updated · AOL · Aug 14
Summary
More than 12,000 participants followed for an average 26 years showed that having none of three midlife vascular risks—diabetes, high blood pressure and smoking—was tied to 12.6 additional dementia-free years versus having all three.
The effect appeared additive: people with one risk factor had 8.8 more dementia-free years, those with two had 3.5 more, and those with all three faced a 2.7-times higher dementia hazard than those with none.
Researchers and neurologists said the findings strengthen evidence that brain health is closely tied to metabolic and vascular health, with changes in midlife potentially shaping dementia risk decades later.
The study was observational, so it cannot prove cause and effect, but it adds to broader evidence—including a 2024 Lancet Commission report on 14 modifiable risks—that prevention may delay dementia even without a guaranteed cure.