Researchers from King’s College London, New York University, the University of Southern California, and the University of Washington have found that cannabis use can ease stress and improve sleep for U.S. military veterans living with posttraumatic stress disorder (PTSD). The study, published in the journal Psychology of Addictive Behaviors as well as published online by the U.S. National Library of Medicine, tracked 74 recently separated veterans with elevated PTSD symptoms over a three-month period. Researchers measured hours spent high, PTSD symptoms, perceived stress, and sleep quality. “Day-to-day analyses revealed that elevated PTSD symptoms and poor sleep quality each predicted greater perceived stress the following day”, states the study. In particular, we show greater cannabis use is linked to improved sleep and PTSD symptoms through lower perceived stress.”The study concludes by saying “Cannabis may offer temporary relief and appears to interrupt the day-to-day cycle linking PTSD, stress, and poor sleep.”