As a runner, I feel like it's one of the best forms of exercise. It's fairly inexpensive, I can do it anywhere, and it strengthens and tones my legs and booty. It also works my heart and lungs, increasing my endurance for other forms of exercise like biking and swimming, and it prevents me from gaining weight. With all those benefits, running also has some disadvantages. My hamstrings and hips are much tighter, which sometimes causes pain in my lower back. I'm sure you fellow runners can relate....
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