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WEKU
WEKU
Health
Paul Cuno-Booth

A study of this champion's heart helped prove the benefits of exercise

Clarence DeMar in 1932. (Boston Public Library, Leslie Jones Collection)

Clarence DeMar would train for races by running to and from his job at a print shop in Boston, up to 14 miles a day, often carrying a clean shirt.

His hard work paid off. He won the 1911 Boston Marathon and competed in the next year's Olympics.

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