+

Tai chi research by the National Center for Complementary and Alternative Medicine of the USA.

Surveys, including one by the National Center for Complementary and Alternative Medicine (http://nccam.nih.gov/health/taichi), have shown that between 2.3 million and 3 million people use tai chi in the United States, where a fledgling body of scientific research now exists: the center has supported studies on the effect of tai chi on cardiovascular disease, fall prevention, bone health, osteoporosis, osteoarthritis of the knee, rheumatoid arthritis, chronic heart failure, cancer survivors, depression in older people, and symptoms of fibromyalgia.