"3 12 meridian therapy" adopts dredging therapy, changing "blocking" into "dredging", systematic treatment and overall adjustment. According to the meridian theory of traditional Chinese medicine, the cause of hypertension is due to out-of-control of meridians, hyperactivity of liver yang, deficiency of kidney qi and yin, and upwelling of qi and blood, which causes dizziness, tinnitus, swelling and pain in the head and elevated blood pressure. The treatment method is to use the principle of "promoting qi and activating blood circulation and nourishing yin and yang" in the meridians to restore the human body's own blood pressure control ability to normal. Through meridian exercise, 20 meridians (including the eight odd meridians) are activated, so that the whole body's blood gas is smooth and the uncontrolled meridians can restore their control functions, so that the hyperactive liver meridians can reduce yang and make the mood calm. At the same time, the kidney yin is gradually enriched, and the yin rises and the yang falls, thus achieving the balance of yin and yang, and achieving the steady decline of hypertension without taking medicine or injection.