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Dr. William Seeds

Columnist & Contributor

Authority Magazine Columnist & Contributor

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Dean Karnazes: The Relentless Pursuit of Endurance That Defines the World's Toughest Ultramarathoner

Dean Karnazes: The Relentless Pursuit of Endurance That Defines the World's Toughest Ultramarathoner

Dr. William Seeds·7y ago·7 min read