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What causes stable angina?

Coronary artery disease (CAD) is frequently the cause of angina. In coronary artery disease, arteries that supply the heart with blood narrow. This makes it much harder for blood to carry oxygen to the heart, and as a result, there are times when the heart does not get the oxygen it needs. Stable angina often occurs at times when the heart needs a greater amount of oxygen, such as during physical activity. Narrow arteries just cannot allow enough blood to flow to meet the higher demand.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.