"Infarction is the death of tissue caused by a lack of blood supply, usually caused by a blood clot or a narrowing of the blood vessel channel. An infarct/heart attack is the term for dead tissue. Angina pectoris is chest pain or shortness of breath caused by a lack of oxygen-rich blood reaching the heart muscles. This pain may occur while walking, running, or simply sitting. Sometim... https://sahyadrihospital.com/videos/heart-attack/