Related Experiment Video
Updated: Jan 8, 2026
05:26
Author Spotlight: Innovations in iTUG Test for Enhanced Risk Assessment and Cognitive Insights
Published on: October 25, 2024
1.7K
Association between falls and dementia risk: Evidence from three cohort studies
Aonan Li1, Shaojiong Zhou1, Jie Chang2
1Department of Neurology & Innovation Center for Neurological Disorders, Xuanwu Hospital, Capital Medical University, National Center for Neurological Disorders, Beijing, China.
Journal of Translational Internal Medicine
|December 24, 2025
Summary
Falls are an early indicator of dementia risk, particularly in individuals with a high genetic predisposition. This association highlights falls as a potential screening tool for cognitive decline.
Area of Science:
- Neuroscience
- Gerontology
- Genetics
Background:
- The link between falls and dementia risk is not well-established.
- Investigating the role of genetic predisposition in this relationship is crucial.
Purpose of the Study:
- To examine the association between falls and the risk of developing dementia.
- To assess how genetic risk factors modify the relationship between falls and dementia.
Main Methods:
- Utilized data from UK Biobank, CHARLS, and Xuanwu cognitive cohort (N=271,950).
- Employed Cox proportional hazards models and logistic regression to analyze falls and dementia risk.
- Assessed brain imaging data (gray matter volume, white matter hyperintensities) and polygenic risk scores (PRS).
Main Results:
- Falls significantly elevated dementia risk across all cohorts (single falls HR 1.22, multiple falls HR 1.73 in UK Biobank).
- Falls correlated with cognitive decline and brain structural changes, including reduced gray matter volume and increased white matter hyperintensities.
- A significant interaction between falls and PRS indicated higher dementia risk in individuals with multiple falls and high genetic risk (P=0.001).
Conclusions:
- Falls serve as an early warning sign for dementia, with genetic susceptibility amplifying this risk.
- Observed brain atrophy in cognition-related regions supports falls as an indicator of underlying neurological changes.
- Falls represent a simple, observable biomarker for dementia screening.
Related Concept Videos
01:30Dementia
482
Dementia is a collective term for cognitive disorders primarily affecting memory, thinking, and reasoning. It is not a specific disease but a syndrome, with Alzheimer's disease being the most common cause, accounting for approximately 60-80% of cases. Other types include vascular dementia, Lewy body dementia, and frontotemporal dementia. Dementia affects millions worldwide, particularly older adults, though it is not a normal part of aging.
The progression of dementia is generally gradual....
The progression of dementia is generally gradual....
482
01:26Alzheimer's Disease: Overview
1.6K
Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
The clinical diagnosis of AD hinges on the presence of memory and other cognitive impairments. Biomarkers, such as changes in Aβ...
1.6K
01:19Psychoneuroimmunology: Diabetes and Cancer
404
Chronic stress has been linked to both the onset and progression of serious health conditions, including Type 2 diabetes and cancer. Type 2 diabetes, a widespread chronic illness, is closely associated with obesity and insulin resistance, both of which often worsen under stress. Studies indicate that men experiencing high levels of chronic stress face a 45% higher risk of developing diabetes compared to those with minimal stress. Stress triggers physiological responses that elevate blood...
404