Comparing the Efficacy of Heated Yoga and Sauna as a Treatment for Depression

This is a parallel group study design. The investigators plan to enroll 120 adults whohave at least moderate depression and will be randomized in an equal allocation ratio(i.e., 1:1:1) across three groups: heated yoga vs. sauna vs. a mindfulness app. Theinterventions will be provided over a 12‐week period and assessments will occur atbaseline (Week 0), mid‐intervention (Weeks 4 & 8), post‐intervention (Week 12, primaryoutcome), and at a 4‐week (Week 16). Then participants enter an optional 1‐month choiceintervention period with a post‐assessment (Week 20).