Mr. Michael P. Flynn is an inspector with the Postal Service's Special Investigations Division. He received the booklet by return mail. Dr. Robin E. Murray teaches family practice at the University of Alabama, is board-certified in Family Medicine, is involved on the local level on the Board of Directors of the American Heart Association, and is the Federal Medical Director of his region for the Emergency Medical Services System. Dr. Murray testified that arteriosclerosis involves the obstruction of blood flow or reduction in blood supply in arteries. This can cause a stroke or a heart attack.
Plaques can build up in the arteries.
These can be composed of lipid type materials, platelets and fibrin, a chemical structure that binds them together. Platelets which collect on the plaque can form a clot. The clot can produce coronary occlusion, a blockage of the coronary artery known as a heart attack. He stated that individuals seem to be genetically loaded for this disorder. Lipid is a broad term for a number of fats that float around in the bloodstream.