Trail Runner Nation is devoted to sharing knowledge and advice to the trail running community - from beginners to the pros! We offer tips and discussion regarding race nutrition, pacing strategy, mental focus and much more from well-respected members of the trail community.

Trail Runner Nation

Sports

Running

Health & Fitness

Fitness

Recount his observations while he was running the 2013 Boston Marathon
His response to a recent study on barefoot running
How to "live more and die less"
Upcoming clinics Dr. Mark will be leading in the U.S.