In the MESA study, risk was reclassified on the basis of the calcium score 25% of the time; and even more often in the intermediate-risk group, in which nearly half were reclassified. The data are very good that as a marker of adverse outcomes, the calcium score goes above and beyond what we can get from the risk calculators.
Courage is often a measure of our self-esteem and will. Courage is what makes us individuals different from others. It shows in what we believe and the power of belief over our will. It is always the difficult path.. It could be an unconscious act of boldness, but before all it is the conscious decision of a person to act despite the danger.
I have thought that Stupidity was the definition you used applied to Bravery, Bravery was your second definition that you applied to courage, and Courage was the ability to endure to the end of a difficult or dangerous task and not fain, or quit, thus, to not become disCOURAGEd, which would be the opposite of courage or the loss of courage.