Studies show that practicing Tai-chi can help balance and flexibility in older people:

"After four months, the researchers saw that the elderly people who practiced Tai-chi saw a reduction in the number of falls their experienced by a factor of 40 percent. Those in the other group who merely received classroom instruction, however, saw the number of falls reduced as well, but only negligibly. Study results showed that over the period of 48 weeks in which the study was carried out, 46 percent of the participants did not fall once. Meanwhile, of those who practiced Tai-chi, 47 percent experienced one fall during the period, while 60.3 percent of those who were only in the classroom instruction group fell once during the study. "