Ultra marathon physiology brought to you by the world’s leading scientists, coaches, and athletes. Science Of Ultra host, Dr. Shawn Bearden, brings you interviews and more to deliver everything you want to know about all facets of training, nutrition, hydration, environment, psychology, gear, and much more. Become your ultra best!

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Hillary Allen
Kenefick & Cheuvront
Herman Pontzer PhD - Burn
Keith Baar, PhD
Hiking
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