That's what a study by Tufts Medical Center in Boston, Massachusetts has revealed. Two groups of pain-ridden arthritis patients were given three months of treatment. One group practised tai chi twice a week. The other was given physiotherapy. Both tai chi and physiotherapy reduced the pain. Beyond that, patients in the tai chi group suffered less from depression, thereby improving their quality of life. A Canadian study had already shown tai chi, with its gentle, flowing movements, to be an alternative for people who suffer form of exercise for people suffering from several disorders.