Strength and Awareness in Action: an Intervention for Post-Acute TBI Headaches (SAA-TBI)

Inclusion Criteria: * Between the ages of 18 and 55 * Able to provide informed consent * History of mTBI per the Ohio State University TBI-ID (OSU-TBI-ID) * History of PCH pain (TTH, migraine, or mixed), with onset of pain or increase in previous headache pain having occurred within one month of mTBI as determined by structured examination using criteria outlined in the International Classification of Headache Disorders-3 beta (ICHD-3 beta) * Duration of PCH pain being greater than one year as determined by structured medical examination * Score of \>49 on the Headache Impact Test-6 (HIT-6) * Medical clearance by study provider to participate in yoga protocol Exclusion Criteria: * Younger than 18, or older than 55 years of age * Active substance dependence, excluding Cannabis dependence (based on local issues regarding the legality of cannabis), as determined by structured clinical interview * Moderate to severe TBI as determined per the OSU-TBI-ID * Identification of active psychosis as determined by structured clinical interview * Failing to receive medical clearance by study provider; * Inability to participate in the manualized intervention without postures being significantly modified * Already participating in an ongoing consistent yoga practice (two or more times weekly) * Involvement in another research interventional trial aimed at addressing pain-related symptoms.