What to know about cardiovascular disease The cardiovascular, or circulatory, system supplies the body with blood. It consists of the heart, arteries, veins, and capillaries. CVD is now the most common cause of death Trusted Source worldwide. However, there are many ways to reduce the risk of developing these conditions. There are also many treatment options available if do they occur. The treatment, symptoms, and prevention of the conditions that are part of CVD often overlap. In this article, we look at the different types of CVD, their symptoms and causes, and how to prevent and treat them. Types CVD comprises many different types of condition. Some of these might develop at the same time or lead to other conditions or diseases within the group. Diseases and conditions that affect the heart include: angina, a type of chest pain that occurs due to decreased blood flow into the heart arrhythmia, or an irregular heartbeat or heart rhythm congenital heart disease, in which a problem wi