Volunteer service, such as tutoring children, can help older adults delay or reverse declining brain function, according to a study led by researchers at the Johns Hopkins Bloomberg School of Public Health. Using functional magnetic resonance imaging (fMRI), the researchers found that seniors participating in a youth mentoring program made gains in key brain regions that support cognitive abilities important to planning and organizing one’s daily life. The study is the first of its kind to demonstrate that valuable social service programs, such as Experience Corps—a program designed to both benefit children and older adults’ health—can have the added benefits of improving the cognitive abilities of older adults, enhancing their quality of life. The study is published in the December issue of the Journals of Gerontology: Medical Sciences. "We found that participating in Experience Corps resulted in improvements in cognitive functioning and this was associated with significant changes in brain activation patterns,” said lead investigator Michelle C. Carlson, PhD, associate professor in the Bloomberg School’s Department of Mental Health and Center on Aging. “Essentially the intervention improved brain and cognitive function in these older adults." The study followed 17 women aged 65 and older. Half participated in existing Experience Corps programs in Baltimore schools, while the other half were wait-listed to enroll in Experience Corps the following year. Participants were evaluated at enrollment and again six months later, which included fMRI brain scans and cognitive function testing. “While the results of this study are preliminary, they hold promise for enhancing and maintaining brain reserve in later life, particularly among sedentary individuals who may benefit most urgently from behavioral interventions like Experience Corps,” said Carlson, who is now leading a larger fMRI trial as part of a large-scale randomized trial of the Baltimore Experience Corps Program. “As life expectancies increase, it’s important, from a public health standpoint, to delay the onset of diseases associated with aging,” said senior author Linda P. Fried, MD, MPH, dean of the Mailman School of Public Health at Columbia University. “This study suggests that new kinds of roles for older adults in our aging society can be designed as a win-win—for addressing important societal needs, such as our children’s success, and simultaneously the health and well-being of the older volunteers themselves.”
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