New high-resolution brain scans reveal that while some parts of the cerebral cortex thin with age, others remain stable—or even grow thicker—especially in regions that process touch.
Researchers found that brain layers age at different speeds, with the most-used layers showing surprising resilience and adaptability. These findings challenge the idea that reduced brain volume always means reduced function, uncovering built-in compensatory mechanisms that help preserve skills well into later life. It’s a hopeful glimpse into how use, stimulation, and neuroplasticity can help the brain stay sharp.
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