Narrator Tai Chi is rooted in the centuries-old philosophy of Taoism—where balance and energy-flow play key roles. Practitioners believe internal power is derived from a life force called "chi".

Energy expenditure was measured in 10 subjects from each group ... Further studies should explore the mechanism by which Tai Chi helps to improve movement capacity, and whether this form of exercise ...

On a Sunday afternoon in the heart of Calgary’s Chinatown, melodic notes of traditional Chinese string instruments float ...