In “Treat Your Own Back” (https://www.amazon.com/Treat-Your-Back-Robin-McKenzie/dp/098...), the author—a physiotherapist—accidentally leaves a back pain patient face down on an examination table with their back slightly hyperextended (i.e. head and upper back slightly above prone position). They were horrified that they’d harmed the patient, but instead the patient felt completely relieved of their pain. This is the story of how the McKenzie method (https://en.m.wikipedia.org/wiki/McKenzie_method) was discovered. Lying prone is the core position of the method (in addition to progressive back extensions), and it actually works surprisingly well for me.
