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Beautiful Body Essential
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Improved fitness and a great body are dependent not only on what physical activity you do, but also on how vigorously and for how long you do it. That's why, when doing cardio, for example, it's critical to stay within your target heart rate range in order to achieve a...
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Improved fitness and a great body are dependent not only on what physical activity you do, but also on how vigorously and for how long you do it. That's why, when doing cardio, for example, it's critical to stay within your target heart rate range in order to achieve a certain level of intensity.