There are definitely cardiac benefits to running. Over time and with training, the heart as a muscle strengthens. The power of each heartbeat thus increases, leading to a decreased heart rate, and as a result the heart becomes more efficient. When exercising, a fit heart pumps 50% more blood than an unfit one. Suffice it to say that the stronger heart is an eminently healthier one, and it has been widely proven that fitness reduces the risk of coronary heart failure.


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