We need more medical studies to figure out how Yoga lowers blood pressure, but we can use the information we have to stay healthy in the meantime. Medical and scientific research regarding Yogic techniques for high blood pressure is hard to come by, which leaves us with more anecdotal information than we have from medical studies at this time.
Certain Yoga poses (asanas) have been shown to help manage stress and hypertension. The Easy Pose (Sukasana) is recommended for stress reduction. If it is practiced after the Corpse Pose (Sivasana), this pose strengthens the spine, slows the metabolism, and promotes quiet stillness of mind.