Emotional Stress and Cardiac Risk

Introduction to Emotional Cardiac Risk

Strong emotions, including crying and laughing, can trigger acute cardiac events in patients with pre-existing heart disease, with anger episodes carrying a 2.3-fold increased risk of myocardial infarction within 2 hours of the emotional episode, according to the American Heart Association 1

Acute emotional arousal activates the sympathetic nervous system, leading to heightened plasma and urinary catecholamines, increased heart rate, altered vagal control, and reduced heart rate variability—all of which negatively impact cardiac function, as stated by the American College of Cardiology 1, 2
Anxiety can result in coronary vasospasm that causes atherosclerotic plaques to rupture, directly precipitating acute coronary events, as reported by the American Heart Association 3
Depression and anxiety produce sympathoadrenal hyperactivity, affecting cardiac functioning through catecholamine effects on the heart and platelets, along with impaired platelet function and hypercoagulability, according to the American College of Cardiology 1, 2

Anxiety is an independent contributor to angina pectoris development, with risk increasing proportionally to anxiety level in prospective studies of over 34,000 subjects, as found by the American Heart Association 4, 5
Depression carries a 1.64 relative risk for developing coronary heart disease and results in more than a fourfold increased independent risk of mortality—equivalent prognostic value to prior MI history, according to the American College of Cardiology 6, 5
Combined depression and anxiety create compounded cardiac risk beyond either condition alone, with documented associations to MI and sudden cardiac death, as reported by the American Heart Association 4, 2
High levels of anger confer a 3.2 times higher risk of fatal or nonfatal coronary events compared to those with lowest anger levels, as stated by the American College of Cardiology 1, 2

Assess and treat underlying depression, anxiety, and hostility, as these psychological states are highly prevalent in cardiac patients and independently predict cardiovascular morbidity and mortality, according to the American Heart Association 6, 5