9/11 terrorist attacks and accelerated aging may be linked: study

Key Points:

• A study of 393 World Trade Center responders found that PTSD is linked to molecular changes associated with accelerated biological aging and increased risk of chronic diseases affecting multiple organs, including the heart, kidneys, liver, and lungs.
• Researchers identified significant differences in 114 proteins and seven metabolites between responders with PTSD and those without, highlighting alterations in markers related to brain function, immune activity, energy metabolism, and tissue repair.
• The findings suggest that PTSD is a whole-body illness causing lasting biological changes decades after trauma, which may explain the higher incidence of chronic conditions such as heart disease, lung disease, and cognitive decline in affected individuals.
• Limitations include the study’s cross-sectional design, a predominantly male sample, and its focus on a unique trauma-exposed population, meaning results may not generalize to all PTSD sufferers; blood tests provided indirect measures of brain function.
• The study emphasizes the need for further research to assess whether these biological markers can predict disease progression or treatment outcomes and supports recognizing PTSD as a chronic medical condition with significant long-term health effects.