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.
Thanks, Collin, for writing in. Cardiac calcification is fairly common sign of early artery disease. It shows up on X-rays or CT scans in people of all ages. If developed during middle-age years, family history probably plays a role. I get tested regularly for heart disease and calcium buildup because I, myself, have a family history of the disease.