$10 drop in fee Developed at the Trauma Center in Brookline, Massachusetts, Trauma Center Trauma-Sensitive Yoga (TCTSY) is an empirically validated, clinical intervention for complex trauma or chronic, treatment-resistant post-traumatic stress disorder (PTSD). The TCTSY program is included in the National Registry of Evidence-based Programs and Practices (NREPP) database published by the Substance Abuse and Mental Health Services Administration (SAMHSA). In addition to yoga, TCTSY has foundations in Trauma Theory, Attachment Theory, and Neuroscience.