Unstable angina, or acute coronary syndrome, is a type of chest pain or discomfort that typically occurs when a person is resting. Unstable angina is a medical emergency, and people should seek ...

Angina happens when one of the heart’s blood vessels is blocked and temporarily deprives the heart muscle of blood and oxygen, causing chest pain. If you feel like someone is squeezing your heart when ...

Both angina and a heart attack can feel the same, causing chest pain due to reduced blood flow to the heart. However, with angina, the pain is caused by a brief interruption of blood flow, often ...