what is coronary heart disease caused by
Causes of heart disease. Coronary heart disease (CHD) is usually caused by a build-up of fatty deposits on the walls of the arteries around the heart (coronary arteries).The fatty deposits, called atheroma, are made up of cholesterol and other waste substances.auses of heart disease. Coronary heart disease (CHD) is usually caused by a build-up of fatty deposits on the walls of the arteries around the heart (coronary arteries).