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2. Your Breathing Gets More Efficient Your lungs become more efficient at getting more oxygen to your muscles not only by better processing the amount you take in during each breath but also by increasing your respiration rate. We actively use our respiratory muscles when we breathe in and relax them when we breathe out. … Read more

3. Your Heart Gets Stronger Running is one of the most popular cardio workouts. It improves the strength and efficiency of the cardiovascular system. Every runner has a strong heart as they typically have a lower resting pulse rate and intake a higher amount of oxygen. As a result, the organ can handle pumping a … Read more