Review identifies varied patterns of cognitive change with aging
Stable cognition and moderate decline were common patterns in the reviewed studies, with education, lifestyle, social networks and health conditions associated with different courses.
Based on the published abstract. The full paper may contain additional methods, results and limitations.
The 30-second takeaway
The review found varied patterns of cognitive aging, with stable performance and moderate decline appearing most often. Rapid decline was associated with dementia, disability and mortality. Education, lifestyle, social connections and health conditions were also linked to different patterns, but these associations do not establish that changing a particular factor prevents cognitive decline.
This abstract-based explanation lacks follow-up durations and numerical estimates of associations. Few studies examined biomarkers or brain structure, limiting the biological evidence available to explain differences between cognitive trajectories.
Patterns and associated characteristics
The review sought studies that identified distinct patterns of cognitive change. Higher education, an active lifestyle and stronger social networks were associated with stable cognition; cardiovascular disease, diabetes and depression were associated with faster decline.
Health outcomes and biological evidence
Several studies linked rapid cognitive deterioration with dementia, death and disability. A smaller body of research examined biomarkers and brain structure. The authors called for further work on biological measures and potentially modifiable factors.
The original publication
Group-based trajectory modelling for cognitive changes in middle-aged and older adults: A systematic review.
Zhang H, Chen H, Ding X et al.
Ageing Res Rev · 2025
- PubMed ID
- 40783072
- Record checked
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