When you wake and your neck has seized up in the night

Why? Why does this happen? 🙄 People say that you must have been lying in a peculiar way but I've legit been using a bed for years and I'm pretty good at it. Why would I suddenly lie with my head up my butt? 🤔

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Ferric67 · M

Golgi tendon organs and muscle spindles

They constantly monitor fiber lengths in muscles and tendons. Their job is to activate a reflex to prevent excessive elongation of fibers (prevent tearing). You hold a pose long enough, you will, in essence recalibrate them to fit a different measurement.