Life Sciences & Medicine Active Updated Aug 3, 2026
Lifestyle trials show measurable dementia prevention effects
Large randomized trials are testing whether lifestyle interventions, exercise, brain training, social engagement, can lower the risk factors behind dementia, including the first such trial adapted for Latin America. The stakes are whether these gains hold up over years and translate into fewer actual dementia diagnoses, and whether the approach works outside the wealthy countries where most of this research has happened.
The story so far
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Aug 3, 2026 Latest
Osaka Metropolitan University researchers followed 2,578 older adults in Habikino City, Japan for four years and found that showing up weekly to informal, resident-led community gathering groups cut the risk of developing cognitive disability by roughly 50 percent among adults who did not already exercise regularly, with no added measurable benefit for those already active.
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Aug 2, 2026
Researchers reported at the Alzheimer's Association International Conference in London that LatAm-FINGERS, a trial of 1,200 adults aged 60 to 77 testing a culturally adapted lifestyle intervention pairing exercise with brain training against a control group given only general health advice, produced statistically better thinking skills in the intervention group, building on the Lancet Commission's 2024 estimate that 14 modifiable factors account for 45% of dementia cases worldwide.
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