Alone in the Mind: Review of Research Examining the Link Between Loneliness and Dementia

ABSTRACT This narrative review focused on research investigating the impact of loneliness on the prevalence of dementia and its relationship with other risk factors. A comprehensive and rigorous search was conducted using a variety of scientific databases with specific keywords to identify all prior...

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Main Authors: Ahmed Hussein Al‐Samiry, Samer Imad Mohammed, Ahmed Majid Hammed, Tayf M. Maryoosh
Format: Article
Language:English
Published: Wiley 2025-03-01
Series:Medicine Advances
Subjects:
Online Access:https://doi.org/10.1002/med4.70005
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author Ahmed Hussein Al‐Samiry
Samer Imad Mohammed
Ahmed Majid Hammed
Tayf M. Maryoosh
author_facet Ahmed Hussein Al‐Samiry
Samer Imad Mohammed
Ahmed Majid Hammed
Tayf M. Maryoosh
author_sort Ahmed Hussein Al‐Samiry
collection DOAJ
description ABSTRACT This narrative review focused on research investigating the impact of loneliness on the prevalence of dementia and its relationship with other risk factors. A comprehensive and rigorous search was conducted using a variety of scientific databases with specific keywords to identify all prior studies that examined the correlation between dementia and loneliness. The inquiry was confined to articles published in English from January 2017 to March 2024. The narrative review identified a consensus regarding the role of loneliness in enhancing the risk of all‐cause dementia, with a particular emphasis on the subjective perception of loneliness. This phenomenon may be caused by the sensations of exclusion, discrimination, and alienation that are typically associated with low self‐esteem and low life satisfaction, which may contribute to cognitive impairment and depressive symptoms. This finding was obtained despite the absence of robust evidence regarding the involvement of loneliness in the pathogenesis of dementia. Existing research has not yet identified a correlation between hereditary factors that influence the development of dementia and feelings of loneliness. However, loneliness is strongly associated with depression, which is a potential risk factor for dementia. Previous studies have reported a moderate correlation between depression and loneliness, as individuals who are isolated and lack a sense of community exhibit higher levels of depression. Meditation, social cognitive training, and social support are three strategies that have been implemented to address loneliness and are reported to be the most effective interventions. A strong correlation exists between dementia and loneliness. Although such strategies are unlikely to impede the progression of the disease if cognitive deterioration is already underway, understanding these associations can assist in the development of strategies to alleviate the effects of loneliness on vulnerable individuals.
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spelling doaj-art-a24b5487d06c40f6abe13aa89d86a5d32025-08-20T01:54:44ZengWileyMedicine Advances2834-43912834-44052025-03-0131202710.1002/med4.70005Alone in the Mind: Review of Research Examining the Link Between Loneliness and DementiaAhmed Hussein Al‐Samiry0Samer Imad Mohammed1Ahmed Majid Hammed2Tayf M. Maryoosh3Department of Clinical Pharmacy College of Pharmacy University of Baghdad Baghdad IraqDepartment of Clinical Pharmacy College of Pharmacy University of Baghdad Baghdad IraqDepartment of Clinical Pharmacy College of Pharmacy University of Baghdad Baghdad IraqDepartment of Pharmacy Kut‐University College Al Kut IraqABSTRACT This narrative review focused on research investigating the impact of loneliness on the prevalence of dementia and its relationship with other risk factors. A comprehensive and rigorous search was conducted using a variety of scientific databases with specific keywords to identify all prior studies that examined the correlation between dementia and loneliness. The inquiry was confined to articles published in English from January 2017 to March 2024. The narrative review identified a consensus regarding the role of loneliness in enhancing the risk of all‐cause dementia, with a particular emphasis on the subjective perception of loneliness. This phenomenon may be caused by the sensations of exclusion, discrimination, and alienation that are typically associated with low self‐esteem and low life satisfaction, which may contribute to cognitive impairment and depressive symptoms. This finding was obtained despite the absence of robust evidence regarding the involvement of loneliness in the pathogenesis of dementia. Existing research has not yet identified a correlation between hereditary factors that influence the development of dementia and feelings of loneliness. However, loneliness is strongly associated with depression, which is a potential risk factor for dementia. Previous studies have reported a moderate correlation between depression and loneliness, as individuals who are isolated and lack a sense of community exhibit higher levels of depression. Meditation, social cognitive training, and social support are three strategies that have been implemented to address loneliness and are reported to be the most effective interventions. A strong correlation exists between dementia and loneliness. Although such strategies are unlikely to impede the progression of the disease if cognitive deterioration is already underway, understanding these associations can assist in the development of strategies to alleviate the effects of loneliness on vulnerable individuals.https://doi.org/10.1002/med4.70005Alzheimer's diseasedementiadepressionlonelinessloneliness scalesocial isolation
spellingShingle Ahmed Hussein Al‐Samiry
Samer Imad Mohammed
Ahmed Majid Hammed
Tayf M. Maryoosh
Alone in the Mind: Review of Research Examining the Link Between Loneliness and Dementia
Medicine Advances
Alzheimer's disease
dementia
depression
loneliness
loneliness scale
social isolation
title Alone in the Mind: Review of Research Examining the Link Between Loneliness and Dementia
title_full Alone in the Mind: Review of Research Examining the Link Between Loneliness and Dementia
title_fullStr Alone in the Mind: Review of Research Examining the Link Between Loneliness and Dementia
title_full_unstemmed Alone in the Mind: Review of Research Examining the Link Between Loneliness and Dementia
title_short Alone in the Mind: Review of Research Examining the Link Between Loneliness and Dementia
title_sort alone in the mind review of research examining the link between loneliness and dementia
topic Alzheimer's disease
dementia
depression
loneliness
loneliness scale
social isolation
url https://doi.org/10.1002/med4.70005
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