Cognitive Decline

Cognitive decline in older adults ranges from normal age-related change through mild cognitive impairment to dementia, and the distinctions matter for what to do next. This page collects what the evidence shows about early signs, screening, and reversible causes, with Canadian context.

Last updated August 7, 2026

Placeholder pillar page — seeded to validate the Keystatic ↔ Astro content pipeline during scaffolding. Real content lands in TASKS.md Step 10.

Articles in this topic

Research

Normal Aging vs. MCI vs. Dementia

Normal aging, mild cognitive impairment, and dementia sit on a spectrum distinguished mainly by whether cognitive changes interfere with daily independence — normal aging does not, MCI causes noticeable but manageable difficulty, and dementia impairs the ability to live independently. This piece is placeholder scaffold content, seeded to test isMedical content, not the real published article.