Lin teaches an elderly student during a group tai chi class at the club house at The Seasons in East Meadow, New York.[Photo/Xinhua]

Chen practices tai chi with students at Sitan Tai Chi and Martial Arts in New York.[Photo/Xinhua]

Lin teaches kids at the martial arts school.[Photo/Xinhua]

Chen Sitan and his wife, Lin Xu, perform tai chi at Times Square in New York.[Photo/Xinhua]