Thank you for the information. The frustrating thing is that just a few years ago I was running three to four times a week, distance from 3 to 8 miles at a less than 10 minute mile pace. I will be 63 years old in June. The foot problem that I mentioned in the original post has put running out of the picture. I don’t have a lot of faith in our local medical community. I have collected my records and I am going to make an appointment with a cardiologist at Northwestern Medical Center in Chicago. I really want to start a cardio exercise program but I want the go ahead from a trusted doctor. I was told by the doctors here that the LAD blockage is in a position that cannot be stinted. Northwestern is a top rated cardiology hospital, hopefully they have a different option. I saw the post on connect Mayo Clinic about the calcium scan and a possible remedy for a high calcium score. My family has a very poor heart heart history although much of that could be lifestyle driven. I tend to take better care of myself than most. Don’t smoke, drink to excess, eat right and try to exercise regularly. In 2013 I experienced a very stressful year and I contribute much of that to the blockage I have now. Thanks again for the calcium scan information. Regards, Don