Sleep paralysis vs assault paralysis
Both paralyses share a close mechanism (motor inhibition) but have different origins. Sleep paralysis is a REM exit failure. Assault paralysis is acute sideration. Both: conscious but immobile.
Why it happens — the mechanism
Sleep: REM atonia (useful to not act out dreams) lingers post-wake for seconds. Assault: dorsal vagal triggers the same tonic atonia. Difference: sleep is temporary and benign, assault can leave psychotraumatic sequelae.
How the Avikzar System answers it
Understanding this parallel helps dedramatize assault paralysis — same mechanism, different context. Not weakness or pathology.
Yehouda Avikzar (10th Dan) — Freezing isn't your fault — it's your biology. But not training after experiencing one is your responsibility.
Frequently asked questions
Does sleep paralysis predispose to sideration?
Slightly — weak correlation (r=0.12 per Sharpless 2011).
Other reactions to danger
Train the reflexes that bypass freeze
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