What is cardio and why it's important? The word “cardio” is short for “cardiovascular,” a term used for the circulatory system consisting of the heart and blood vessels in your body.What people refer to when saying they “do cardio” are endurance exercises that strengthen this network. Those are done for longer stretches of time, make the heart beat faster and pump more blood through your system, which carries nutrients and oxygen to every cell.
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Reasons why Cardio is Important?
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