Meta-Analysismoderate evidence
Domain-specific physical activity levels and risk of dementia: a systematic review and meta-analysis.
The Lancet. Public health·September 1, 2026·PMID 42612650
Why it mattersPhysical activity is widely recommended for dementia prevention, but this analysis reveals that not all activity is equal. Occupational and commuting activity may not confer the same cognitive benefits as leisure-time activity, and may even increase risk. This nuance is critical for clinicians advising patients on lifestyle interventions and for interpreting public health guidelines.
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