The main purpose of this legislation is to explore the potential use of RNA sequencing as a method for diagnosing post-traumatic stress disorder (PTSD) in veterans. The goal is to determine if this advanced scientific technique can effectively identify symptoms related to PTSD, which often include inflammation or cellular stress. Key provisions of the legislation include the requirement for the Secretary of Veterans Affairs to initiate a study within 120 days of the law being enacted. This study will take place in five medical facilities within the Veterans Integrated Service Networks.