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Lifetime of Learning Might Thwart Dementia

Even taking up intellectual pursuits in mid-life appears to aid the brain

WebMD News from HealthDay

By Alan Mozes

HealthDay Reporter

MONDAY, June 23, 2014 (HealthDay News) -- A lifetime engaging in intellectually stimulating pursuits may significantly lower your risk for dementia in your golden years, new research suggests.

Even people with relatively low educational and professional achievements can gain protection against late-life dementia if they adopt a mentally stimulating lifestyle -- reading and playing music and games, for example -- by the time they enter middle-age, the new study contended.

"In terms of preventing cognitive [mental] impairment, education and occupation are important," said study lead author Prashanthi Vemuri, an assistant professor of radiology at the Mayo Clinic and Foundation in Rochester, Minn. "But so is intellectually stimulating activity during mid- to late life," she added.

"This is very encouraging news, because even if you don't have a lot of education, or get exposure to a lot of intellectual stimulation during non-leisure activity, intellectual leisure activity later in life can really help," she said.

Artistic endeavors -- including crafts -- participation in group activities and computer work also benefit the aging brain, according to the study, published in the June 23 online issue of JAMA Neurology.

Seniors in the United States accounted for roughly 35 million people in 2000, and that figure is projected to more than double by 2030, the study authors said. Keeping seniors' brains healthy is considered a public health imperative.

To explore how routine intellectual "exercise" might translate into a lower risk for age-related dementia, the team tracked nearly 2,000 men and women between the ages of 70 and 89, who enrolled in a Mayo Clinic aging investigation between 2004 and 2009.

Initial testing revealed that more than 1,700 of the participants were "cognitively normal" at enrollment, while nearly 300 had "mild cognitive impairment." Cognition refers to thinking and memory abilities.

All participants were subsequently "scored" on their level of past educational achievements, while occupational histories were ranked by degree of intellectual complexity.

Participants also completed questionnaires designed to pinpoint how much they engaged in intellectually demanding activities during the prior 12 months and during middle age (from age 50 to 65).

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