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Journal ArticleObservational StudyJAMA network open·Apr 2026

Your Brain May Slow Down Years Before a Heart Attack or Stroke

Key Insight

This study suggests unexplained cognitive changes in older adults may warrant a closer look at heart health.


In older adults, thinking skills started declining 3 to 8 years before they had a major cardiovascular event like a stroke or heart failure. The drops showed up in memory, processing speed, and verbal fluency compared to people who stayed healthy. This hints that heart disease and brain aging share deep roots, and subtle cognitive changes might be an early warning sign.

Disclaimer: Research summaries are provided for informational purposes only and do not constitute medical advice. Always consult a qualified healthcare professional before making changes to your health routine.