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Monday, November 29, 2010
How Exercise Affects the Cardio and Respiratory Systems
How Exercise Affects the Cardio and Respiratory Systems
Fitness
Exercise can improve both heart and lung fitness. Learn how these two systems are improved by exercise and ways that you can learn more about fitness.
http://www.suite101.com/content/how-exercise-affects-the-cardio-and-respiratory-systems-a314140
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