Sng sensation elicited by acupuncture stimulation, commonly regarded as a characteristic somatosensory response and an indicator of therapeutic engagement, distinct from pain. 指因針灸刺激所引發之痠感，為針灸治療中常見且被視為療效指標之一的體感反應，與一般疼痛感不同。(Sun et al., J Tradit Complement Med, 2024 )