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How Exercise May Keep Alzheimer’s at Bay

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Sharpening Stones and Walking On Coals
Sharpening Stones and Walking On Coals

Cautiously encouraging is better than despair, no?

Alzheimer’s disease, with its inexorable loss of memory and self, understandably alarms most of us. This is especially so since, at the moment, there are no cures for the condition and few promising drug treatments. But a cautiously encouraging new study from The Archives of Neurology suggests that for some people, a daily walk or jog could alter the risk of developing Alzheimer’s or change the course of the disease if it begins.

For the experiment, researchers at Washington University in St. Louis recruited 201 adults, ages 45 to 88, who were part of a continuing study at the university’s Knight Alzheimer’s Disease Research Center. Some of the participants had a family history of Alzheimer’s, but none, as the study began, showed clinical symptoms of the disease. They performed well on tests of memory and thinking. “They were, as far as we could determine, cognitively normal,” says Denise Head, an associate professor of psychology at Washington University who led the study.

The volunteers had not had their brains scanned, however, so the Washington University scientists began their experiment by using positron emission tomography, an advanced scanning technique, to look inside the volunteers’ brains for signs of amyloid plaques, the deposits that are a hallmark of Alzheimer’s. People with a lot of plaque tend to have more memory loss, though the relation is complex.

(click here to continue reading How Exercise May Keep Alzheimer’s at Bay – NYTimes.com.)

Can’t hurt to walk a bit every day, why not do it?

Written by Seth Anderson

January 19th, 2012 at 9:53 am

Posted in health,science

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