Stable angina is a morphologically reversible process that develops slowly over months or years and typically does not cause acute death.

“So in other words, you're getting more blood is even being taken away. And so that syndrome is considered to be stable angina. ... That ties in together with sort of the way symptoms develop, the chronicity of the problem, the fact that People talk about how stable angina doesn't typically kill people. It develops slowly over time, months or years.”