A British study shows Tai Chi can help people who suffer from heart failure:

""People with heart failure require less strenuous exercise and sustained but gentle exercise, which Tai Chi is, is ideal for them."

Gloria Yeh, of the Harvard Medical School, also said she thought the non-strenuous, low impact nature of Tai Chi was the key.

"We found that Tai Chi enhanced the quality of life and functional capacity in patients with chronic heart failure who were already undergoing standard cardiac care."

She said the Tai Chi, which has origins in Chinese marital and healing arts, had the potential to make vast improvements in the quality of life of people with heart failure. "