Tai chi's popularity continues to grow in the US

LAS VEGAS - "I have been practicing tai chi for 30 years. It always works on internal harmony and balance, and external harmony in getting along with people and society," says Richard Griffith, an instructor for cement masons, who lives in Arcadia, California.

Practicing tai chi has brought Griffith not only health and longevity, but also romance.

Griffith met his girlfriend in China when they both traveled halfway across the globe to Chenjiagou in Henan province, the birthplace of a very-popular form of tai chi, to study the martial art.