A person may reduce the risk for developing stable angina by:
If untreated, atherosclerosis can lead to stable angina brought on by lower and lower levels of exertion. Unstable angina, a severe, progressive angina that medication cannot control, also can develop. Other long-term effects include congestive heart failure, heart attack, and arrhythmias, or irregular heartbeats.
Stable angina is not contagious and poses no risk to others.