Why stress changes your brain

Original Title

Physiology and neurobiology of stress and adaptation: central role of the brain.

Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms

Summary

When you're stressed a lot, your brain changes: the part that helps you remember gets smaller, the part that makes you scared gets bigger, and this can make you forget things more easily or feel anxious.

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Surprising Findings

Stress doesn’t just make you feel anxious—it physically rewires your brain’s structure, shrinking memory areas and expanding fear centers.

Most people think stress is just a feeling, not a structural brain changer—this shows it’s as real as a broken bone.

Practical Takeaways

Do 30 minutes of moderate exercise (like brisk walking) 5 days a week to boost neurogenesis and lower cortisol.

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Publication

Journal

Physiological reviews

Year

2007

Authors

B. McEwen

4497 citations
Analysis v1