Story perspectives
Study Reveals Brain Regions Expand with Aging
10/25/2025
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Story summary
- A Nature Neuroscience study finds that some brain regions can increase in size with age.
- Layer four of the sensory cortex enlarges in healthy older adults, suggesting a compensatory mechanism that may decline in very advanced age.
- Layers five and six, which modulate sensory information, show signs of degeneration.
- Researchers used 7 Tesla MRI to analyze brain changes in older adults and in mice.
- Lifestyle factors significantly influence brain aging.
