I am 65 and recently got a score of 240. I was shocked. I'm a runner and I've always considered myself to be fit. But, as was just mentioned, poor diet choices can take a toll over time. Runners, especially, think they're immune!

Interesting story: my scan showed a complete blockage in one section of an artery. I've never had any symptoms. I just had an angiogram which explained it. Connecting the main arteries are a number of small arteries known as coronary collaterals. In some runners, the body starts to widen and use these arteries for blood flow. Essentially, my heart created its own bypass! The doctor didn't even want to put a stent in, He said my blood flow was fine. Moral: aerobic exercise is really important!