What are the functions of Qi?
All five substances are interdependent. However Qi is central to each of them since it is both the prime activator as well as the recipient of other functions. The five main functions of Qi are defined as: (1) impulsing-which is the growth and development of the body (2) warming-maintaining the appropriate body heat (3) defending the body against stress and pathogens (4) controlling the blood and bodily fluids within the body (5) metabolizing Qi, blood and bodily fluids.