Physiological benefits of T'ai Chi Author: Anonymous Conference/Journal: Journal of Psychosomatic Research Date published: 1989 Other: Volume ID: 23 , Issue ID: 2 , Pages: 197-206 , Word Count: 49 Relative to measurement beforehand, practice of T'ai Chi raised heart rate, increased nonadrenaline excretion in urine, and decreased salivary cortisol concentration. Relative to baseline levels, [Test Subjects] reported less tension, depression, anger, fatigue, confusion and state-anxiety; they felt more vigorous, and in general they had less total mood disturbance.