 Study Design The proposed study is a prospective study of patients referred for coronary angiography. Subjects enrolled in this study will complete a questionnaire, including information about diet, lifestyle, perceptions of health and perceived barriers to healthy lifestyles. Demographics, information regarding medical comorbidities including two questions on depression, baseline laboratory data already collected for clinical purposes, and angiographic data presenceabsence of CAD and severity will be collected. Patients will be contacted by telephone at one and six months following their procedure to complete the two one-page questionnaires again. On follow-up, patients will also be asked if they have made changes to their diet, using their completed dietary survey as a guide. Both, at baseline and on follow-up, the questionnaires will be administered verbally to be consistent. The purpose of this follow-up is to determine if a patients knowledge of their coronary disease status affects short- and long-term changes in diet and perception of health. The primary outcome measure will be change in questionnaire response between baseline and follow-up. 