In this video, Dr. RR Kasliwal, Chairman - Clinical & Preventive Cardiology, Medanta – The Medicity, will discuss how about endothelial functions. Endothelium is the first lining of all the arteries of the body and it is thinner than the thinnest muslin cloth. Dr. Kasliwal will also talk that the first marker if any disease is the endothelial dysfunction. If by any means the endothelial dysfunction is diagnosed than cardiovascular diseases, stroke, peripheral vascular diseases could be prevented. He will also explain the importance of studying endothelium.