[sa-code]

That's really interesting. Did you learn about this somewhere or was it more by yourself?

[algorias]

I learned about it from a physical therapist. This seems to be old knowledge that was somewhat widespread (in the german-speaking world at least), then discredited in modernity as medicine was looking to be more evidence-based, and is now making a slow comeback.

NB: I have nothing against evidence-based medicine. But our bodies are much weirder than the high modernists were willing to admit.