https://www.humantruth.info/tags/pain.html
Human Truth Foundation pages (4):
Perception is Influenced By Expectation: You Can't Always Trust Your Senses: 2. Expectation and Pain: The Placebo Effect
The Placebo Effect and the Positive Power of the Mind on Health: 1.1. The Suppressing of Pain by the Prefrontal Cortex
Pseudoscience and Health: The World of Alternatives (to Truth): 4.1. Acupuncture
Critical Thinking on Acupuncture: How Does it Work?