We are pretty much on the same page, I do High Impact Interval Training (not sure what HIRT is) and am very active with walks, high energy drumming and projects. I am 67, retired almost a year ago. I hope I get reductions in that CAC. I passed a standard stress test but EKG showed some abnormality that my cardiologist has scheduled me for a nuclear stress test at the end of March. That will show whether or not I have soft plaque. I refused a statin so far. I had problems with them 15 years ago and the data I've seen on them makes me wonder why I should take them.