The numerous influences of the shoe heel on the foot and body column are not fully understood by most medical practitioners. The practi- tioner commonly speaks of “sensible” heels. Such a heel does not exist. Any elevated heel under a shoe automati- cally initiates an altered series of foot and body biomechanics.~ William A. Rossi from, https://www.scribd.com/document/45230480/Footwear-The-Primary-Cause-of-Foot-Disorders
And sometimes I use my blog as a personal out-brain data storage system. I’m trying to link to a more definitive source—but you’ll find that link is pay-walled, (and of no relation nor benefit to me.) It’s a short read, well-worth finding a copy of.