Small amounts of moderate to vigorous physical activity are associated with big reductions in dementia risk

The researchers found dementia risk decreased with higher amounts of physical activity. Dementia risks were 60% lower in participants in the 35 to 69.9 minutes of physical activity/week category; 63% lower in the 70 to 139.9 minutes/week category; and 69% lower in the 140 and over minutes/week category. For their analysis, the researchers analyzed a dataset covering nearly 90,000 adults living in the U.K. who wore smart-watch-type activity trackers.