Two new studies add to growing evidence that physical activity helps to keep older people's brains sharp.Neither study shows cause and effect, only that there is an association between exercise and cognitive health.But in both studies, participants who exercised the most were substantially less likely to suffer memory loss and other signs of cognitive decline, compared to their more sedentary counterparts."Most importantly, the association [between slower cognitive decline] and physical activity was not limited to people engaged in vigorous exercise," says researcher Marie-Noël Vercambre, PhD, of the Foundation of Public Health at Mutuelle Generale de l'Education Nationale in Paris.Even taking a brisk, 30-minute walk every day was associated with a lower risk of cognitive impairment, she tells WebMD.Both studies were presented at the Alzheimer's Association International Conference here and simultaneously published online in the Archives of Internal Medicine.
(Source: webmd.com)
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