FILE-People run on treadmills at a gym. (ABBAS MOMANI\/AFP\/GettyImages)\n\nImproving heart health can be done using different methods, and a study suggests it can happen by building muscle strength that can produce better results
FILE-People run on treadmills at a gym. (ABBAS MOMANI\/AFP\/GettyImages)\n\nImproving heart health can be done using different methods, and a study suggests it can happen by building muscle strength that can produce better results
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