Shoeless running

"Rarámuri People." Wikipedia. Wikimedia Foundation, n.d. Web. 22 Apr. 2016.

"The Pros and Cons of Barefoot Running: What the Research Says." Breaking Muscle. N.p., n.d. Web. 22 Apr. 2016.

"Is Barefoot Running Right for You?" Verywell. N.p., n.d. Web. 22 Apr. 2016.

"Born to Run Quotes." By Christopher McDougall. N.p., n.d. Web. 22 Apr. 2016.

Overtraining

"12 Signs You're Overtraining." Men's Fitness. N.p., n.d. Web. 22 Apr. 2016.

"The Overtraining Syndrome - Dr. Phil Maffetone." Dr Phil Maffetone. N.p., 06 May 2015. Web. 22 Apr. 2016.

Crossfit

"The Great Injury Debate: Is CrossFit Dangerous? We May Never Know." Breaking Muscle. N.p., n.d. Web. 22 Apr. 2016.

Forbes. Forbes Magazine, n.d. Web. 22 Apr. 2016.

Supplements

None