Thursday, March 25, 2021

Midlife loneliness is a risk factor for Dementia and Alzheimer's disease


https://www.eurekalert.org/pub_releases/2021-03/buso-mli032321.php

 

News Release 24-Mar-2021
Recovery from temporary loneliness may provide reduction in dementia risk
Boston University School of Medicine
 

 

Being persistently lonely during midlife (ages 45-64) appears to make people more likely to develop dementia and Alzheimer's Disease (AD) later in life. However, people who recover from loneliness, appear to be less likely to suffer from dementia, compared to people who have never felt lonely.

Loneliness is a subjective feeling resulting from a perceived discrepancy between desired and actual social relationships. Although loneliness does not itself have the status of a clinical disease, it is associated with a range of negative health outcomes, including sleep disturbances, depressive symptoms, cognitive impairment, and stroke. Still, feeling lonely may happen to anyone at some point in life, especially under extreme and unresolved quickly circumstances such as the Covid-19 lockdowns. Yet, people differ in how long--or how "persistent"--they feel lonely for. Thus, it may be that people who recover from loneliness will experience different long-term consequences for their health than people who are lonely for many years.


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After taking effects of age, sex, education, social network, living alone, physical health and genetic risk into account, persistent loneliness was associated with higher risk, whereas transient loneliness was linked to lower risk of dementia and AD onset after 18 years, compared with no loneliness.

"Whereas persistent loneliness is a threat to brain health, psychological resilience following adverse life experiences may explain why transient loneliness is protective in the context of dementia onset," explained corresponding author Wendy Qiu, MD, PhD, professor of psychiatry and pharmacology & experimental therapeutics at BUSM. In light of the current pandemic, these findings raise hope for people who may suffer from loneliness now, but could overcome this feeling after some time, such as by using successful coping techniques or following a policy change in the physical distancing regulations.

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