Angina, a type of chest pain, can be stable or unstable. Stable angina follows a predictable pattern. For example, it may occur regularly after strenuous exercise and go away shortly. Angina is a type ...

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 ...