Scientists discover possible link between 9/11 and accelerated aging

A study of World Trade Center responders found that PTSD is associated with molecular changes linked to accelerated biological aging and a higher risk of chronic disease.

The study, led by Stony Brook University in New York, could offer new clues to the long-term physical health effects of post-traumatic stress disorder.

The researchers tested blood samples from 393 WTC responders, collected approximately 18 years after the September 11, 2001, attacks, according to a university press release.