Breathwork Intervention for Posttraumatic Stress

This study is testing whether a structured breathwork practice (controlled breathing exercises) can reduce symptoms of PTSD (post-traumatic stress disorder) in adults who have been professionally diagnosed. **You may be eligible if...** - You have received a professional diagnosis of PTSD - You are 18 or older - You can understand English instructions fluently - You are able to put other new treatments on hold while participating in this study **You may NOT be eligible if...** - You have done breathwork before - You have asthma, COPD, or any breathing or respiratory condition - You have uncontrolled high blood pressure or issues with fainting - You have a neurological condition such as epilepsy - Your PTSD or mental illness is so severe that you cannot manage basic daily tasks - You have cardiovascular or peripheral arterial disease Talk to your doctor to see if this trial is right for you.