Sara Blakely, the founder of Spanx, dropped a shoe that combines the look of high heels with allegedly the comfort of sneakers, dubbing them "Sneex." $3,500 iPhone possible?

From the 1500s to today, between Audrey Hepburn's signature black kitten heel, to Lady Gaga's massive armadillo shoes, high heels have been an integral component of wardrobes for centuries.

A stock photo of a woman wearing high heels. High-heeled shoes may make you a more efficient walker, researchers suggest. Getty Images. For the study, the team asked eight men and women to wear ...