Researchers Linked Spinal Bone Density to Cognitive Decline
A study found that lower thoracic bone mineral density is associated with faster brain function degradation.
Updated on Sept. 22, 2026 in Alzheimer’s
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Johns Hopkins researchers discovered that lower spinal bone mineral density correlates with faster global cognitive decline. The study suggests that bone and brain degeneration share common metabolic aging drivers.
Why it matters
This research provides insight into the shared biological mechanisms, such as insulin resistance and menopausal shifts, that underlie both bone and brain degradation. Identifying these links may help in understanding broader health declines.
The study cohort included 715 participants with a median age of 69 years, comprising 397 men and 318 women. Investigators utilized a deep learning algorithm to extract bone metrics from non-contrast chest CT scans.
The players
Johns Hopkins University
This private research university based in Baltimore is a leading institution for medical study and scientific discovery.
Radiology
This peer-reviewed medical journal publishes original research and clinical reviews concerning imaging and diagnostic sciences.
The details
Researchers used a deep learning model to measure thoracic vertebral bone mineral density and linked low density to white matter hyperintensities in the corpus callosum. While bone loss is not a direct cause of dementia, the findings indicate that bone and brain degeneration stem from shared metabolic pathways.
Timeline
The data collection for the Multi-Ethnic Study of Atherosclerosis spanned from September 2016 to March 2024.
The study was published in the journal Radiology on September 22, 2026.
The Big Picture
This research utilizes data from the Multi-Ethnic Study of Atherosclerosis to examine the connection between spinal density and cognitive health. It follows a pattern set by recent longitudinal studies that leverage large-scale datasets to uncover complex metabolic interactions.
The use of AI algorithms to measure bone density during routine chest CT scans could lead to more opportunistic screening for cognitive health risks. Patients should consult with their healthcare providers about how metabolic factors like insulin resistance may impact their overall aging.
The takeaway
While bone loss is not a direct trigger for dementia, the shared metabolic roots suggest that maintaining bone health may be part of a broader strategy for cognitive preservation. Clinicians may increasingly use existing imaging data to identify patients who could benefit from early metabolic monitoring.
Further reading
For more information on the latest research and diagnostic approaches, visit our Alzheimer’s section.
More information
View the original research paper in Radiology for a full breakdown of the study methodology.
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