I am 72 y/o male. At a routine check (which I ask for every five years) I got a perfectly normal resting EKG from my cardio guy BUT coronary artery calcium came back at 1409, most of it in the right coronary artery. Yes I freaked, especially in light of my dad dying of his third heart attack. However a Nuclear Myocardial Perfusion Stress Test resulted in me being classified as a "low risk study", although I will be on statins for the rest of my life. No problem running on the treadmill as long as they wanted and then some (9 minutes total) or achieving the target heart rate. HOWEVER , I attribute this result to running or cycling most of my adult life (except for the last three years). I think it provides a physical reserve. Other than that I certainly was never the poster boy for a healthy life style. So if you have a healthy, fit past you might not be as bad off as you think, BUT get the stress test and find out!