http://www.spokesman.com/stories/2010/sep/14/costs-of-wearing-heels/ http://www.spokesman.com/stories/2010/sep/14/costs-of-wearin... "Curious, they used MRI an

http://www.spokesman.com/stories/2010/sep/14/costs-of-wearing-heels/ http://www.spokesman.com/stories/2010/sep/14/costs-of-wearin... "Curious, they used MRI and saw that the Achilles’ tendon compensated for muscle fiber length. The tendon was significantly thicker and stiffer in high-heel wearers."