Choking.

A breath-control-adjacent practice that restricts blood flow to the brain (via carotid artery pressure on the sides of the neck) rather than airway pressure on the trachea. Distinguished from strangulation and from breath-restricting practices. Choking carries serious cardiovascular and neurological risk; UK domestic-abuse harm-reduction sources and BDSM safety-aware practitioners both note that even consensual choking can cause delayed loss of consciousness, stroke, or death. Considered RACK-tier rather than SSC for that reason.

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