We propose to evaluate the effect of TA on arterial vasomotor function and autonomic nervous system tone, two physiologic variables involved in the pathophysiological cascade underlying acute cardiac events and sudden death in CHD patients. To test for both the hypothesized direct and indirect effects of this CAM modality, we propose to compare an active TA intervention to two control groups: 1) an Alternative Acupuncture control group, and 2) a waiting control group, in patients with CHD.