Christopher Celano, MD, is a psychiatrist and the associate director of the Cardiac Psychiatry Research Program at Massachusetts General Hospital and also an associate professor of psychiatry at Harvard Medical School, Boston, Mass. He has published more than 90 articles and has focused much of his research and clinical work on the impact of depression and anxiety on cardiac health, as well as the use of technology to deliver health behavior interventions. His work also focuses on the promotion of positive psychological well-being and health behavior adherence.