How Does Acupuncture Work?

Acupuncture’s Role in Rebalancing the Nervous and Immune Systems

Acupuncture has long been used to restore balance in the body, but its biological explanation is becoming much clearer. New research shows that acupuncture works through neuro‑immune regulatory circuits, not just local tissue effects. When an acupoint is stimulated, the mechanical pressure is converted into electrical and chemical signals that reshape the local immune environment and activate wider nervous‑system pathways. These signals travel through somatosensory nerves, the autonomic nervous system, and even the gut–brain axis to help rebalance immune activity both locally and throughout the body. In this way, acupuncture functions as a form of targeted neuromodulation with relevance for many inflammatory and immune‑related conditions.

Traditional explanations often focused on direct point‑to‑organ relationships, but modern science shows the process is far more complex. Neural and immune systems interact continuously, and acupuncture taps into these shared pathways. As neuroscience and immunology advance, researchers are uncovering how acupuncture activates somatosensory–autonomic reflexes to regulate immune balance. These discoveries highlight the need for deeper study of acupuncture’s neuro‑immune mechanisms and support a more integrated understanding of how the body maintains systemic health.

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Researchers from Fudan University and the China Academy of Chinese Medical Sciences published a major review in May 2025 in Acupuncture Research (DOI:10.13702/j.1000-0607.20250346) showing how acupuncture influences the immune system through well‑defined neural pathways. Their analysis pulls together findings from neuroanatomy, immunology, and systems biology, demonstrating that stimulating an acupoint activates somatosensory nerves, autonomic circuits, and even gut‑based neural networks. Together, these pathways coordinate immune responses across multiple organs, offering a clearer scientific explanation for how acupuncture modulates immunity.

In short, acupuncture quickly reshapes the body’s local immune environment. It creates a controlled, mild inflammatory response that increases blood flow and sparks communication between sensory nerves, mast cells, fibroblasts, and immune messengers. On the whole‑body level, acupuncture activates the vagus nerve to calm excessive inflammation, while the sympathetic nervous system fine‑tunes immune cell activity depending on the stage of illness.