endorphin-dependent system

endorphin-dependent system (en·dōrˈ·fin-d·penˑ·dnt sisˑ·tm),

n in acupuncture, one model system of activating the body's endogenous opioid peptide system and influencing the body's system of regulating pain by using low-frequency (2–4 Hz)/high-intensity electrical stimulation of needles. The onset of the analgesic response is often slow, generalized through the body, and it increases on succeeding stimulations.