There are some people who can wear heels for eight hours straight and feel no pain. Those people clearly have no sensation in their feet. For the rest of us, wearing heels can be like standing on top of a bunch of tiny knives, or being barefoot on a bunch of hot coals.
source https://theinventory.com/lessen-the-torture-that-is-high-heels-with-these-five-f-1835502491