Even with scans and checkups, at that age, a bad case of the flu can kill you, or start you on that path. And I don't think we have any reliable non-invasive ways of detecting heart attack risk, or aneurism risk, those kinds of things.
Not sure, but don't ECGs find cases of severe plaques or narrowed arteries? Or most cases of heart disease.
> aneurism risk
An angiography should find most cases, from some quick research. "The CTA sensitivity, specificity and accuracy was 80%, 43% and 73%, respectively. The CTA sensitivity for aneurysms < 3 mm and 3 mm – 5 mm in size was 30% and 81.5%, respectively (p = 0.024)." [1]
Agree on the rest though.