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What is missing, what is worked out wrongly, what you did not understand — all of it helps. This site has no user accounts and no analytics; I learn nothing through it that you do not write to me.

First things first: Radhaltung is a private hobby project that I build in my spare time. There is no company behind it, no support desk and no promised response time — I read everything, but I do not always reply, and rarely quickly. The site is free and will stay free; in return it is unfinished in places.

And the most important sentence up front: what is worked out here is a model, not medical advice. For pain that stays, ask someone who can examine you.

Optional. Without it I cannot reply — it is used for that alone and stored nowhere.

What happens to your message

It is passed on and then forgotten — there is no database for it to go into, and it is written to no log. What you write is read by a person and by nobody else. There is more on this in the privacy notice.