9/11 Responders Show 3-Year Brain Aging Gap as 23% Develop PTSD
Updated
Updated · PBS NewsHour · Sep 6
9/11 Responders Show 3-Year Brain Aging Gap as 23% Develop PTSD
3 articles · Updated · PBS NewsHour · Sep 6
Summary
MRI research found 9/11 first responders with PTSD had brains that appeared about three years older than their actual age, pointing to accelerated brain aging decades after the attacks.
Around 23% of World Trade Center responders have been diagnosed with PTSD, and researchers linked both trauma and toxic dust exposure at ground zero to later cognitive decline.
In a cohort of more than 5,000 responders tracked from 2014 to 2022, 228 developed dementia before age 65; the highest rates were among those with the heaviest dust exposure or inconsistent respirator use.
Each additional month spent working at ground zero was associated with roughly four to five extra months of apparent brain aging, suggesting duration of exposure mattered.
The findings add to evidence that 9/11 remains a long-term public health issue, requiring lifelong mental, cognitive and physical support for first responders.