Angina pectoris is chest pain or discomfort caused by reduced blood flow to the heart muscle, usually due to narrowed or blocked coronary arteries (coronary artery disease). It serves as a critical warning sign of potential heart problems.
Causes and Triggers
Reduced oxygen supply to the heart due to plaque buildup (atherosclerosis)
Increased demand during physical exertion, stress, or cold temperatures
Risk factors: High blood pressure, smoking, diabetes, high cholesterol
Symptoms of Angina
Chest pressure, tightness, or squeezing pain (often behind the breastbone)
Pain radiating to the arms (usually left), neck, jaw, or back
Shortness of breath, nausea, or fatigue (especially in women)
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