Health · Medical Research · 1 day ago
Lower Bone Density Linked to Signs of Faster Brain Aging
Researchers led by a team from Johns Hopkins University studied data from 715 people in the United States.
They used chest CT scans and an AI tool to estimate bone density in the spine, then compared the results with brain scans and thinking and memory tests collected over several years.
People with lower bone density showed more signs of damage in the brain’s white matter and faster decline in test scores.
White matter helps connect parts of the brain, and the affected areas have been linked to attention, memory and planning.
The study found an association, not proof that weaker bones cause brain changes.
The researchers said shared factors related to aging, such as insulin resistance, blood-fat levels and menopause, could affect both bones and the brain.
Longer-term research is needed to learn whether these brain changes lead to conditions such as dementia.
Bone-density readings might eventually help identify people at higher risk, but more data is needed before they can be used that way.
A study of 715 people found that lower spinal bone mineral density was associated with signs of faster brain aging.
The signs included changes in white matter structure, more white matter hyperintensities in some brain regions and faster decline on thinking tests.
Researchers say the findings do not show that weaker bones cause cognitive decline.
They suggest shared factors, including insulin resistance, dyslipidemia and menopausal change, may affect both bone and brain health.
The study was published in Radiology and reported by ScienceAlert on October 10, 2026.
- Who
- Researchers led by a team from Johns Hopkins University studied 715 participants.
- What
- Lower spinal bone mineral density was associated with signs of brain aging and faster decline in thinking test scores.
- When
- Participants were assessed and then followed up several years later. ScienceAlert reported the study on October 10, 2026.
- Where
- The research team was from Johns Hopkins University in the United States; the participants' location is Not stated.
- Why
- Researchers said shared metabolic factors may affect both bone and brain health. The study did not establish cause and effect.
This story does not have two clearly opposing sides.
This study is not about cause and effect, but rather the observation of a metabolic syndrome that may cause both bone and brain degeneration.
The co-occurrence observed in the study may reflect shared metabolic drivers of aging, including insulin resistance, dyslipidemia, and menopausal change, rather than a direct bone-to-brain effect.
This study is the first longitudinal secondary analysis linking baseline vertebral bone mineral density to changes in white matter structure, white matter hyperintensity progression and cognition.
Participants had chest scans and completed thinking and memory tests.
Participants had brain scans and further cognitive tests.
ScienceAlert reported the study, which was published in Radiology.
- Participants
- 715
- Bone measure
- Bone mineral density in the spine
- Brain markers
- White matter structure and white matter hyperintensities
- Research team
- Johns Hopkins University
- Study outlet
- Radiology
Sources
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