Moderate

The pain-killing effects of acupuncture may be related to:___________?

Correct answer: D. release of endorphins

  • A. sensory adaptation
  • B. stabilization of physiological nystagmus
  • C. the triggering of perceptual defense systems
  • D. release of endorphins

Explanation

Acupuncture may reduce pain by stimulating the release of endorphins, the body's natural opioid-like pain-relieving chemicals. The other choices describe unrelated perceptual or visual processes.

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