An Annals of Internal Medicine report showed a strong link between exercise and a lower risk of dementia.
From the Medline Plus press release:
Who was studied? 19,458 healthy middle-aged people who had a treadmill exercise test as part of a preventive health clinic visit.
How was the study done? The researchers divided the participants into those who were most and least fit, defined as the amount of time people ran on a treadmill. They then followed the participants for many years, beyond the time they reached age 65 years, to see who went on to develop dementia. The researchers then compared the number of people who had dementia among the most and least fit.
What did the researchers find? The most fit study participants were much less likely to develop dementia than those who were less fit.
(S-R archive photo)