It has been proven that health status can be perturbed by a variety of electromagnetics phenomena. We are using the electromagnetic theory and principles, to explain the pathophysiological processes in cardiovascular diseases. From clinical data, it was demonstrated that the large arteries tends to be blocked more often, leading to cardiovascular symptoms. This was difficult to be explained biologically or from common sense, since large arteries have larger diameters, and with higher speed of the blood stream, making it difficult for the debris or other contents of the blood to be attached to the endothelial of the blood vessels. Here, by adopting basic electronics theories, the above questions can be readily explained, while possible practical prevention measures are also suggested.