Depends on who's asking. For the Federal government, gross income is income from all sources- earned and unearned. Unearned income is your money making money- investments, dividends, capital gains, sale of property. Earned income is, well, what you actually toiled to attain, like wages, consultation fees, jury duty payment, etc.
Coronary artery calcification is the result of calcium deposition in the coronary arteries. Coronary arteries are blood vessels that deliver blood supply to the heart for its nourishment and oxygen needs.
Breast arterial calcifications, also revealed by mammogram, increase the risk of heart disease. Calcification of the coronary and brain arteries increase the risk for heart disease and stroke. Additionally, calcification can cause painful joints, lung disease and formation of kidney stones.