Some people who repeatedly develop kidney stones may also have high levels of calcium deposits in their blood vessels. A study recently published by the American Society of Nephrology suggests that this could explain their increased risk for cardiovascular disease. "It's becoming clear that having kidney stones is a bit like having raised blood pressure, raised cholesterol, or diabetes in that it is another sign of, or risk factor for, cardiovascular disease and its consequences," said study co-author Robert Unwin of University College London. The main message "is to begin to take having kidney stones seriously in relation to cardiovascular disease [...]