"You Walk Wrong"

http://nymag.com/health/features/46213/

"How we're wrecking our feet with every step we take"

This is a long article but it hooks you in the beginning with some great points, like: "It took 4 million years of evolution to perfect the human foot. But we’re wrecking it with every step we take." and the fact that "Shoes hurt your feet. They change how you walk." Sort of a "duh idea" when you think about it, but it makes sense. You walk differently than you normally would when you wear shoes, and it's not ideal for your body.