PTSD leaves detectable marks in blood, new research reveals – CTV

April 27, 2026

A new study suggests that post-traumatic stress disorder (PTSD) may leave measurable biological traces throughout the body that can be detectable through routine blood tests.

Published in the journal Molecular Psychiatry, researchers at Mass General Brigham in Massachusetts, the Broad Trauma Initiative and the Harvard T.H. Chan School of Public Health identified a set of scalable, blood-based biomarkers linked to PTSD across multiple organ systems.

The researchers behind the study say their findings could help diagnose and manage the condition.

Lead author Younga Lee explained that the findings point to PTSD as a contributor to disruptions in multiple systems including cardiometabolic health, immune function and liver or hepatic health.

“Finding scalable, blood-based biomarkers could help inform timely interventions aimed at mitigating chronic disease risk, which could ultimately improve long-term health outcomes among patients living with PTSD,” Lee said in a press release.

Read more: https://www.ctvnews.ca/health/article/ptsd-leaves-detectable-marks-in-blood-new-research-reveals/