What is angina?

Angina refers to chest pain or discomfort that arises when the heart muscle doesn't receive enough oxygen-rich blood. This condition is typically a symptom of coronary artery disease, where the arteries that supply blood to the heart become narrowed or blocked due to plaque buildup. During physical exertion or stress, the heart demands more oxygen, and if the blood supply is insufficient, it results in the sensation of pain or pressure in the chest.

This definition aligns specifically with the nature of angina, distinguishing it from other medical conditions or symptoms. Severe headaches, numbness in extremities, and shortness of breath may indicate different health issues but are not characteristics of angina directly. Thus, understanding angina as a manifestation of an underlying cardiovascular problem is vital for recognizing its significance in clinical practice and patient assessment.