Our office jobs may involve a lot of sitting but we must still strive to continuously keep moving. According to a new study sitting for long durations can lead to coronary artery calcification which is one of the early indicator of heart disease. The study found no association between coronary artery calcification and the amount of exercise a person gets suggesting that too much sitting might have a greater impact than exercise on this particular measure of heart health. The results suggest that exercise may not entirely counteract the negative effects of a mostly sedentary lifestyle on coronary artery calcium.