Compared to those who do not, running three days a week saves an average of 14.1 percent on health-care costs each year in the United States.
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ACompared to those who do not, running three days a week saves
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BCompared with nonrunners, people who run three days a week save
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CCompared to not running, those running for three days a week save
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DWhen compared with those who do not, people running three days a week save
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EWhen compared to nonrunners, running three days a week saves
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