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- The heart is important because it pumps blood around your body, delivering oxygen and nutrients to your cells and removing waste products. The heart is the main organ in the circulatory system, and to deliver deoxygenated blood and waste products (carbon dioxide) to the lungs. It is what keeps your blood flowing and your organs going. It is a tireless muscle that pumps more than two thousand gallons of blood every day. The blood that is pumped is filled with nutrition and oxygen (Colombo 7). It travels through out your body in less than sixty seconds. So it needs to be taken extra good care of.
