The Neurobiological Mechanism (How it Works)
In 2026, the scientific community views acupuncture as a form of neuromodulation. While traditional practitioners speak of balancing Qi (energy) through meridians (channels), modern research focuses on the physiological response to needle insertion:
Central Nervous System (CNS) Stimulation: Acupuncture triggers the release of endorphins and enkephalins, the body’s natural painkillers, which block pain signals in the spinal cord and brain.
Connective Tissue Remodeling: Mechanical "needle grasp" (the resistance felt when rotating a needle) causes local fibroblasts to stretch, triggering a cellular signaling cascade that reduces inflammation in the surrounding tissue.
Autonomic Regulation: By stimulating specific points, acupuncture can modulate the vagus nerve, helping to shift the body from a "fight or flight" (sympathetic) state to a "rest and digest" (parasympathetic) state, which is why it is highly effective for stress and digestive disorders.