Joe talks about how he handles RPG healing mechanics in both new-school and old-schools games. Inspired by the classic works of Judges Guild and John M. Ford, he explores the concept of individual wound tracking and the importance of first aid in recovering from battle.
The Roleplayer Article: https://www.sjgames.com/gurps/Roleplayer/Roleplayer16/Wounds.html
More information is at dekahedron.com