High salt, low exercise are bad for the brain
August 28th 2011 20:44
Research has shown consuming too much salt and being inactive leads to heart disease, but now a new study shows the same combination also can be bad for brain health.
Canadian researchers studied the salt intake and physical activity levels of 1,262 healthy men and women ages 67 to 84 over three years and found those with the highest levels of sodium (3,091 milligrams a day and greater) and the lowest levels of exercise tended to show poorer cognitive performance than those with a low sodium intake and an active lifestyle. The findings were published in the journal Neurobiology of Aging.
"These findings are important because they help people know they can be proactive in retaining healthy brains as they age," says Carol Greenwood, one of the study's lead researchers and a professor at the Baycrest Center for Geriatric Care at the University of Toronto.
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