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Staying fit has become a priority for me. Given the lack of time I have today and the high cost of health club memberships, I have turned to running. Requiring only shirt, shorts, and shoes, running is one of the least-expensive and least complicated sports. Running rewards me positively because of its physical, social, and psychological effects. The most obvious rewards I get from running are physical. Running at least thirty minutes five or six times a week helps me maintain my weight, keeping my blood pressure low, and strengthen my heart and lungs. Running just thirty minutes at a moderate pace, I burn anywhere from 400 to 500 calories. Since the heart is a muscle, exercising makes it work more efficiently resulting in a lower resting heart rate. Running also improves my breathing by getting more oxygen into the lungs and into my blood. As a result, my body uses its fuel (food) more