Participants in this single-blind study will receive a psychiatric evaluation during which post-traumatic symptoms and feelings regarding their cardiovascular illness will be evaluated. Participants will then be randomly assigned to receive either CBT or a single educational session about PTSD, with up to 2 more follow-up educational meetings if needed. Participants assigned to the educational session will attend one meeting with a researcher to discuss the results from their evaluation. If they choose, they will also be referred to a mental health clinic for further care. Participants assigned to receive CBT will meet with a therapist once a week for at least 3 weeks. Participants will be offered the chance to meet with their therapist for two additional sessions if they need more time to discuss their symptoms. All participants will be re-evaluated at Months 2 and 6 using an interview, questionnaires,blood tests, blood pressure readings, and weight measurements.