"Olivia Wilde and Jason Sudeikis ‘have sex like Kenyan marathon runners’". Olivia Wilde's speech at Glamour's "These Girls" event at Joe's Pub in New York, pagesix.com. October 10, 2012.
Amby Burfoot (2000). “The Runner's Guide to the Meaning of Life: What 35 Years of Running Have Taught Me About Winning, Losing, Happiness, Humility, and the Human Heart”, p.15, Rodale