This study was an examination of perceptions about the causes of coronary artery disease and the timeline of the disease among 105 patients hospitalized because of myocardial infarction or for coronary angiography and receiving the diagnosis of coronary artery disease. Although 79% of subjects named at least one of three modifiable risk factors (smoking, hypertension, elevated cholesterol), only 7% identified all three. Subjects known to have risk factors varied in their recognition of those risks as a cause of their coronary artery disease. Sixty-four percent of smokers recognized smoking as a personal cause of their coronary artery disease, whereas only 15% of subjects with hypertension recognized hypertension as a cause. The majority of subjects (55%) believed that coronary artery disease was a chronic disease. The other subjects were unsure (13%) or believed the situation would be short term (28%). Despite general knowledge about coronary artery disease, individuals with known risk factors continue to be largely ignorant of their personal risks and to some extent of the course of the disease.