Is coronary artery disease (CAD) hereditary or non-communicable?

CAD is caused by both heredity and environmental factors. Heredity only gives you the "predisposition" to get it- it does not guarantee you will have CAD even if members of your family do. However, if you are already predisposed to have CAD and you have poor health habits, such as eating fatty foods (athersclerosis,or hardening of the arteries, is the #1 contributing factor to the disease), smoking, or being obese, this will increase your chances of having CAD. Likewise, if you are predisposed and you lead a healthier lifestyle, you may never get it.