You are running along your favorite trail and suddenly a pain stats accumulating in your jaw. The harder you push, the worse it gets. You decide to sit down and rest and after a few minutes it goes away. You again start to run and the pain returns, what is going on? Angina is a condition where the heart muscle isn’t receiving enough oxygen in order to maintain the current workload put on the body. Simply put oxygen demand exceeds oxygen production. This is caused by narrowing