it burns calories more quickly then any other form of exercise. In fact,running burns twice as many calories as swimming,the second best calorie-burning activity.while swimmers burn around 600 calories per hour,runners can burn up to 1200 calories per hour. Running is also a great form of exercise because it can be done almost anywhere. Finally,running is a budget-friendly activity;the only thing a runner needs to purchase is a good pair of running shoes.