1"10 Compelling Reasons Why You Should Date a Runner." Runtastic. March 26, 2017. Accessed: December 27, 2017.
2Aschwanden, Christie. "The Big 7 Body Breakdowns." Runner's World, February 3, 2011. Accessed: December 27, 2017.
3Beresini, Erin. "Will Wearing Red Make Me Faster?" Outside, October 31, 2012. Accessed: December 27, 2017.
4Boyle, Bryan. "Ask the GearGuy: How to Waterproof Your Run." Runner's World, June 2, 2015. Accessed: December 27, 2017.
5Brooks, Amanda. "What’s Different for Men vs Women Running?" Run to the Finish (blog). Accessed: December 27, 2017.
6Butler, Sarah Lorge. "8 Things to Know about Running and Your Breasts." Runner's World, February 9, 2017. Accessed: December 27, 2017.
7Chen, Ingfei. "Born to Run." Discover, May 28, 2006. Accessed: December 27, 2017.
8Cregan-Reid, Vybar. How Running Makes Us Human: Footnotes. New York: St. Martin's Press, 2016.
9Delman, Stephanie. "9 Weird Things Running Does to Your Body." Everyday Health. Accessed: December 28, 2017.
10"Dennis Kimetto." Runner's World. Accessed: December 27, 2017.
11Edwards, Phil. "When Running for Exercise was for Weirdos." Vox. August 9, 2015. Accessed: December 28, 2017.
12"Facts & Trivia about Running Shoes." Ragged Mountain Running Shop. Accessed: December 28, 2017.
13Fetters, K. Aleisha. "25 Reasons Running is Better Than the Gym." Men's Fitness. Accessed: December 28, 2017.
14Gaikwad, Pramod. "I Want to Run and Represent My Country in Olympics: Budhia Singh." The Indian Express, August 5, 2016. Accessed: December 27, 2017.
15"Got Milk? Running and Breastfeeding." Salty Running (blog), October 30, 2013. Accessed: December 27, 2017.
16Green, Anna. "The Speedy History of Recreational Running." Mental Floss. May 22, 2016. Accessed: December 28, 2017.
17Heinrich, Bernd. Racing the Antelope: What Animals Can Teach Us about Running and Life. New York: Cliff Street Books/Harper Collins, 2001.
18Pattillo, Allison, Caitlyn Pilkington, and Emily Polachek. "Timeline: Women’s Running through the Years." Competitor Running. Updated October 17, 2014. Accessed: December 28, 2017.
19"Runner's Face: Myth or Reality?" Self. October 25, 2013. Accessed: December 28, 2017.
20"Running and Your Feet." American Academy of Podiatric Sports Medicine. Accessed: December 27, 2017.
21Singh, Manpreet K. "At Almost 106 Years Old Fauja Singh Reveals the Secret of His Youthfulness." SBS. March 30, 2017. Accessed: December 27, 2017.
22Snyder, Paul. "Just About Every Element of Modern Running Was—At One Point—Frowned Upon." Runner's World, December 26, 2017. Accessed: December 28, 2017.
23Tanenbaum, Sharon. "26.2 Fun Facts about Marathons." Everyday Health. Updated October 10, 2011. Accessed: December 27, 2017.