Angina pectoris is a type of chest pain caused by reduced blood flow to the heart muscle. It often feels like pressure, squeezing, or a heavy sensation in the chest. This condition typically occurs during physical activity or emotional stress and usually subsides with rest or medication. The pain can also radiate to the arms, neck, jaw, or back. Angina is not a heart attack but may indicate an increased risk of heart problems. Treatment options include lifestyle changes, medications, and sometimes procedures to improve blood flow to the heart.