You may be 40 years old, but could your brain already be showing signs of accelerated aging? New research involving more than 18,000 people suggests that the answer may depend on much more than genetics or your date of birth.

can assess possible causes and determine whether further investigation is necessary.

Sudden confusion, speech difficulty, weakness, or other stroke-like symptoms require emergency care.
How to Protect Your Brain as You Age

The encouraging news is that not all brain-health risk factors are fixed.

In July 2026, the World Health Organization released updated guidelines on reducing the risk of cognitive decline and dementia.

The guidance emphasized several evidence-based approaches that can be implemented throughout adulthood.
1. Protect Your Cardiovascular Health

Monitor blood pressure, blood glucose, and cholesterol when appropriate.

Managing vascular risk factors can support both heart and brain health.
2.