Acupuncture is believed to stimulate nerves, muscles, and connective tissue, triggering the release of endorphins and other neurochemicals. These substances help to dull pain signals, reduce inflammation, and promote healing. It is also said that acupuncture may modulate pain perception pathways in the brain, offering both localized and systemic pain relief. Research suggests it can effectively alleviate various types of pain, including chronic conditions like back pain and migraines.