Chinese breath-control techniques
Chinese xingqi (行氣, "circulating qi / breath") is a group of breath-control techniques that have been developed and practiced from the Warring States period (c. 475-221 BCE) to the present. Examples include Traditional Chinese medicine, Daoist meditation, daoyin breathing calisthenics, taixi embryonic breathing, neidan internal alchemy, neigong internal exercises, qigong deep-breathing exercises, and taijiquan slow-motion martial art. Since the polysemous keyword qi can mean natural "breath; air" and/or alleged supernatural "vital breath; life force", xingqi signifies "circulating breath" in meditational contexts or "activating vital breath" in medical contexts.