A study conducted by researchers at Mount Sinai concluded that post-traumatic stress disorder (PTSD) may be linked to accelerated brain aging among World Trade Center (WTC) responders. An AI model was specifically trained on 11,000 MRI scans and used to accurately estimate the "brain age" of 9/11 first responders who had been diagnosed with PTSD. Researchers found that the brains of the first responders with PTSD were observed to look significantly older than their actual chronological age. This