Stress is considered a crucial trigger for physical and mental illness. Stress reduction is thought to be a possible benefit of regular Hatha yoga practice.
Scientists have now investigated the comparative effectiveness of a single 90-minute Hatha yoga class and an 8-week, 90-minute-class-per-week course. They found that regular, long-term practice of Hatha yoga provides clear and significant health benefits. Participation in a single 90-minute Hatha yoga class can significantly reduce perceived stress. Doing Hatha yoga regularly can reduce perceived stress even more significantly.