6. Stable vs. Unstable Angina
Angina is often categorized into two main types: stable and unstable. Stable angina is predictable and typically occurs with exertion or stress but goes away with rest.
Unstable angina, on the other hand, is more unpredictable and can occur even at rest or with minimal exertion. Unstable angina is considered a medical emergency, as it may precede a heart attack.



