DESC: Supports: Cholesterol Within Normal Range, Circulatory System, Cardiovascular Health Dietary SupplementTake Cholest-Care to Help Maintain Normal Cholesterol Levels!Your body needs a constant supply of oxygen to function. The cardiovascular system consists of the heart, lungs and blood vessels, and the blood that circulates through them. Your heart and circulatory system make up your cardiovascular system and work in tandem with the respiratory and other systems. Your heart works as a pump that pushes blood to the organs, tissues, and cells of your body. Blood delivers oxygen and nutrients to every cell and removes the carbon dioxide and waste products made by those cells. The circulatory system works with the respiratory system by taking the oxygen inhaled into the lungs to the rest of the body, and delivering carbon dioxide from the body to the lungs for expulsion. The respiratory system is the system that takes in air, separates out the oxygen