Regular exercise can cut dementia risk by up to 45%: Study

Technology Nov 20, 2025

A new study finds that being active from your mid-40s and beyond can slash your risk of dementia by up to 45%.
Researchers tracked over 4,000 adults and found that regular exercise in midlife and later years really makes a difference—while being active in early adulthood (ages 26-44) did not show the same benefit.

Why does this matter?

Staying active from midlife onward isn't just good for your body—it's a big win for your brain, too.
Even people with a genetic risk for Alzheimer's saw lower chances of dementia if they kept moving in later life.
The takeaway? It's never too late to start exercising for better brain health down the road.