Coronary Heart Disease (CHD) is a common health condition that occurs when the arteries supplying blood to the heart become narrow or blocked. Synonyms for CHD include coronary artery disease, ischemic heart disease, and atherosclerotic heart disease. These terms all refer to the same underlying condition, which may cause symptoms such as chest pain, shortness of breath, and fatigue. Other related terms include angina pectoris, myocardial infarction (heart attack), and congestive heart failure. While there is no cure for CHD, lifestyle changes such as healthy eating, regular exercise, and avoiding smoking can help reduce the risk of developing the condition or prevent it from worsening.