Stephanie WarnerZOO 161 ABShweta NayarOctober 24, 2006The Cardiovascular Benefits of ExerciseExercise has huge health impacts on the cardiovascular system. Exercise benefits the heart by making it a more efficient pump, by lowering a persons heart rate and leaving the heart more time for rest in-between pumps. This also allows the heart to pump more blood through it with each beat. Exercise also increases oxygen supply to the heart by widening the coronary arteries, which increases blood flow to the heart. Exercise also increases the body’s ability to dissolve blood clots that can lead to heart attacks or strokes. Exercise also increases the development of collateral circulation, which are alternative pathways for blood flow. This lets blood flow continuously to the heart even if one vessel is blocked. Exercise increases blood volume and the numbers of red blood cells. Exercise lowers the risk of coronary artery disease and high blood pressure. This is
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