Cumulative loneliness is associated with faster memory aging

Prolonged loneliness in adults over 65 may be an important risk factor for accelerated memory aging, according to a new study
Cumulative loneliness is associated with faster memory aging  (representational image - Unsplash)
Cumulative loneliness is associated with faster memory aging (representational image - Unsplash)

Prolonged loneliness in adults over 65 may be an important risk factor for accelerated memory aging, according to a new study led by University of Michigan School of Public Health researchers.

Cumulative loneliness is associated with faster memory aging  (representational image - Unsplash)
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"We found that feeling lonely for a longer duration of time was associated with more rapid memory decline, suggesting that it is never too late in life to work on reducing feelings of loneliness to support healthy aging​​," said Lindsay Kobayashi, assistant professor of epidemiology and senior author of the study published in the journal Alzheimer's & Dementia: The Journal of the Alzheimer's Association.

We found that feeling lonely for a longer duration of time was associated with more rapid memory decline, suggesting that it is never too late in life to work on reducing feelings of loneliness to support healthy aging  (representational image - Unsplash)
We found that feeling lonely for a longer duration of time was associated with more rapid memory decline, suggesting that it is never too late in life to work on reducing feelings of loneliness to support healthy aging (representational image - Unsplash)

Kobayashi and colleagues analyzed interview data from more than 9,000 adults over age 50 from the U.S. Health and Retirement Study from 1996 to 2016. They evaluated participants' cumulative durations of loneliness from 1996 to 2004 in relation to changes in memory function over the following 12 years from 2004 to 2016.

Cumulative loneliness is associated with faster memory aging  (representational image - Unsplash)
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Xuexin Yu, a doctoral candidate in epidemiology and lead author of the study, said the association between loneliness and memory aging was strongest in individuals aged 65 and over, with women experiencing stronger and faster memory declines than men.

"Women tend to have larger social networks than men, which may make women less likely to feel lonely than men, but more vulnerable once experiencing long-term loneliness," Yu said. "Social stigma and the reluctance to admit loneliness may also be a factor in this observed gender-specific association."

"Women tend to have larger social networks than men, which may make women less likely to feel lonely than men, but more vulnerable once experiencing long-term loneliness  (representational image - Unsplash)
"Women tend to have larger social networks than men, which may make women less likely to feel lonely than men, but more vulnerable once experiencing long-term loneliness (representational image - Unsplash)

Loneliness and objective social isolation are important factors in the health of older adults, and researchers say that reducing loneliness in mid-to-late life may help maintain memory function for a longer duration.

Cumulative loneliness is associated with faster memory aging  (representational image - Unsplash)
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In addition to Yu and Kobayashi, Ashly Westrick, postdoctoral fellow at U-M's Center for Social Epidemiology and Population Health, is a co-author of the study. The study was supported by the National Institute on Aging at the National Institutes of Health. (SP/Newswise)

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